GENETIKA, Vol

GENETIKA, Vol. 42, No. 3 (2010)

Svetlana GLOGOVAC, Adam TAKAČ and Jelica GVOZDANOVIĆ-VARGA

TOMATO (L. ESCULENTUM MILL.) GENOTYPES VARIABILITY OF FRUIT TRAITS [Abstract] [Full text]

Victor M. SALCEDA

A PROSPECTIVE STUDY OF INVERSION POLYMORPHISM IN NATURAL POPULATIONS OF TWO DROSOPHILA SPECIES FROM EASTERN MEXICO [Abstract] [Full text]

Vera RAKONJAC, Slavica TODIĆ, Zoran BEŠLIĆ, Nada KORAĆ and Nebojša MARKOVIĆ

THE CLUSTER ANALYSIS OF CLONES OBTAINED FROM AUTHOCHTHONOUS CULTIVAR KREACA (Vitis vinifera L)[Abstract] [Full text]

Đura Karagić, Slobodan Katić, Aleksandar Mikić,Milka Vujaković, Dragan Milić, Sanja Vasiljević, Branko Milošević
EFFECTS OF genotype and mechanical damage during harvest ON field pea (Pisum sativum L.) Seed quality [Abstract] [Full text]

Branislava BATOS, Zoran MILETIC, Sasa ORLOVIC, Danijela MILJKOVIC

VARIABILITY OF NUTRITIVE MACROELEMENTS IN PEDUNCULATE OAK (Quercus robur L.) LEAVES IN SERBIA [Abstract] [Full text]

Nenad DELIĆ, Jovan PAVLOV, Vojka BABIĆ, Gordana ŠURLAN-MOMIROVIĆ and Tomislav ŽIVANOVIĆ

PARAMETERS IN THE ESTIMATION OF THE MOST SUITABLE F₂POPULATION SIZE IN CONVENTIONAL MAIZE (Zea mays L.) BREEDING PROGRAMS [Abstract] [Full text]

Veselinka ZEČEVIĆ, Desimir KNEŽEVIĆ, Jelena BOŠKOVIĆ and Slobodan MILENKOVIĆ
EFFECT OF NITROGEN AND ECOLOGICAL FACTORS ON QUALITY OF WINTER TRITICALE CULTIVARS [Abstract] [Full text]

Sofija BOŽINOVIĆ, Jelena VANČETOVIĆ, Milosav BABIĆ, Milomir FILIPOVIĆ and Nenad DELIĆ
THE PLUS-HYBRID EFFECT ON THE GRAIN YIELD OF TWO ZP MAIZE HYBRIDS [Abstract] [Full text]

Dragan MILIĆ, Slobodan KATIĆ, Jan BOĆANSKI, Đura KARAGIĆ, Aleksandar MIKIĆ and Sanja VASILJEVIĆ
IMPORTANCE OF PROGENY TESTING IN ALFALFA BREEDING (Medicago sativa L.) [Abstract] [Full text]

Rade MILETIĆ, Nevena MITIĆ, and Radomirka NIKOLIĆ
FRUIT CHARACTERISTICS IN WALNUT TREE POPULATION IN RELATION TO GROWING SEASON ONSET [Abstract] [Full text]

Mehmet KADRI BOZOKALFA, Dursun EŞIYOKHÜLYA İLBI, Tansel KAYGISIZ AŞÇIOĞUL
ESTIMATES OF GENETIC VARIABILITY AND ASSOCIATION STUDIES IN QUANTITATIVE PLANT TRAITS OF ERUCA SPP. LANDRACES [Abstract] [Full text]

Vladislava GALOVIĆ, Saša ORLOVIĆ, Predrag PAP, Branislav KOVAČEVIĆ, Miroslav MARKOVIĆ
SPECIFICITY OF SSR LOCI FOR Melampsora SPECIES ON POPLARS [Abstract] [Full text]

Dejan CvikiĆ, Nenad PavloviĆ, Milka BRDARand Zdenka Girek
THE IMPORTANCE OF EARLINESS FOR CREATING NEW ms F₁ PEPPER HYBRIDS [Abstract] [Full text]

Aleksandra NASTASIĆ, Đorđe JOCKOVIĆ, Mile IVANOVIĆ, Milisav STOJAKOVIĆ, Jan BOĆANSKI, Ivica ĐALOVIĆ, Zorana SREĆKOV

GENETIC RELATIONSHIP BETWEEN YIELD AND YIELD COMPONENTS OF MAIZE [Abstract] [Full text]

Mirjana VASIĆ, Jelica GVOZDANOVIĆ-VARGA, Miroslav ZORIĆ, Marija KRALJEVIĆ BALALIĆ and Janko ČERVENSKI

ANALYSIS OF GRAIN SIZE IN BEAN (Phaseolus vulgaris L.) BY LINEAR AND BILINEAR MODELS [Abstract] [Full text]

Sofija Petrović, Miodrag Dimitrijević, Milivoj BELIĆ, Borislav BANJAC,Jelena Bošković,Veselinka Zečevićand Borivoj PEJIĆ
The variation of yield components in wheat (Triticum aestivum L.) in response to stressful growing conditions of alkaline soil [Abstract] [Full text]

Vesna DRAGIČEVIĆ, Dragan KOVAČEVIĆ, Slobodanka SREDOJEVIĆ, Zoran DUMANOVIĆ and Snežana MLADENOVIĆ DRINIĆ

THE VARIATION OF PHYTIC AND INORGANIC PHOSPHORUS IN LEAVES AND GRAIN IN MAIZE POPULATIONS [Abstract] [Full text]

Tomislav ŽIVANOVIĆ, Gordana BRANKOVIĆ, Slavko RADANOVIĆ

COMBINING ABILITIES OF MAIZE INBRED LINES FOR GRAIN YIELD AND YIELD COMPONENTS [Abstract] [Full text]

Radiša ĐORĐEVIĆ,Bogoljub ZEČEVIĆ, Jasmina ZDRAVKOVIĆ, Tomislav ŽIVANOVIĆ and Goran TODOROVIĆ

INHERITANCE OF YIELD COMPONENTS IN TOMATO [Abstract] [Full text]

Mirjana MILOŠEVIĆ, Mirjana MILORADOV, Saša DRAGIN, and Milan STEGIĆ

THE IMPORTANCE AND IMPLICATION OF GENETIC RESOURCES IN AGRICULTURE [Abstract] [Full text]

Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 397-406

Serbia

UDC 575:635.64
DOI: 10.2298/GENSR1003397G

Original scientific paper

TOMATO (L. ESCULENTUM MILL.) GENOTYPES VARIABILITY

OF FRUIT TRAITS

Svetlana GLOGOVAC, Adam TAKAČ and Jelica GVOZDANOVIĆ-VARGA

Institute of Field and Vegetable Crops, Novi Sad, Serbia

Abstract

Glogovac S., A. Takač and J. Grozdenović-Varga (2010): Tomato (L. esculentum Mill.) genotypes variability of fruit traits. - Genetika, Vol 42, No. 3, 397 - 406.

Tomato (Lycopersicum esculentum Mill.) is vegetable which could be produced and consumed in a many different ways, due to its variability, made by breeding programs. Variability of analyzed genotypes was determinated for further fruit traits: average mass, fruit shape, locules number and dry matter content. Variability source structure was determinated using principal components analysis (PCA). Three main components, which explain 94,2 % of total variability, were chosen for further analysis. The biggest part of the first main component has fruit shape and locule number. The second component is determinated by dry matter content, and the third by the fruit mass. For more precisely perception of homology and divergence between analyzed genotypes, nonhierarchical grouping analysis (k-means) was performed, and genotypes were divided into three groups. Divergency was determinated for fruit mass and locule number, while for index shape and dry matter contetent analyzed genotypes are homologous. The aim of this study is to examine tomato genotypes variability for fruit traits.

Key words: fruit traits,PCA, tomato, variability

Corresponding author: Svetlana Glogovac, Institute of Field and Vegetable Crops,

Maksima Gorkog 30 , 21000 Novi Sad, Serbia, 021/4898-356

email: svetlana.glogovac@ifvcns.ns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 407 -414

Serbia

UDC 575: 596.77

DOI:10.2298/GENSR1003407S

Original scientific paper

A PROSPECTIVE STUDY OF INVERSION POLYMORPHISM IN NATURAL POPULATIONS OF TWO DROSOPHILA SPECIES FROM EASTERN MEXICO

Victor M. SALCEDA

Departamento de Biología, Instituto Nacional de Investigaciones Nucleares,

México

Abstract

Salceda M.V. (2010): A prospective study of inversion polymorphism in natural populations of two Drosophila species from Eastern Mexico- Genetika, Vol 42, No. 3, 407 - 414.

Relative frequencies for heterozygous inversions in nine populations of D. nebulosa and six of D. willistoni were analyzed. The analysis corresponds to a grand total of 1828 arm chromosomes in which their genotype were determined, of them 404 correspond for each one of the two polymorphic chromosomes, X and III, of D. nebulosa and 204 per chromosome arm in D. willistoni. The more abundant inversions, according to their relative frequencies in D. nebulosa were the XL inversion with 7.9 % and inversion “A” in the third chromosome with 15.6 %, the remaining inversion found did not reach the ten percent. In the case of D. willistoni the more frequent inversions were for the XL arm inversions “A” and “D” with 13.7 and 12.2 percent respectively the remaining five did not reach a ten percent; in the XR arm the higher frequencies were for inversions “D” and “E” with 9.3 % each been the other four inversions with values less than five percent; in the IIL arm none of the seven inversions registered had values higher than six percent; inversion “E” in the IIR arm showed a frequency of 24.5 % and the five remaining barely reached a frequency of 5 %; among the 12 different inversions recorded in the third chromosome, only inversion “B” surpassed the ten percent in this case with 16.1 %. We must mention that the Standar sequence in all cases, for both species, always had high frequencies as shown in Tables II and III. The corresponding variability for this characteristic is for D. nebulosa 61.4 %.and 72.2% for D.willitoni. Concerning other parameter observed we have the average number of inversions per female in our case for D. nebulosa was 1.4 and for D. willistoni 3.6 which indicate the both species are marginal with respect to the distribution of this character in both species since in the central areas of distribution reach values up to nine inversions per female.

Key words: Drosophila, inversion polymorphism, natural populations

Corresponding author: Victor M. Salceda,Departamento de Biología, Instituto Nacional de Investigaciones Nucleares. Carretera México/Toluca S/N, La Marquesa, Ocoyoacac. México, C.P. 52750. Mexico. victor.salceda@inin.gob.mx.

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 415 - 424

Serbia

UDC 575:631.52

DOI:10.2298/GENSR1003415R

Original scientific paper

THE CLUSTER ANALYSIS OF CLONES OBTAINED FROM AUTHOCHTHONOUS CULTIVAR KREACA (Vitis vinifera L)

Vera RAKONJAC¹, Slavica TODIĆ¹, Zoran BEŠLIĆ¹, Nada KORAĆ²

and Nebojša MARKOVIĆ¹

¹Faculty of Agriculture, Belgrade, Serbia

²Faculty of Agriculture, Novi Sad, Serbia

Abstract

Rakonjac V., S. Todić, Z. Bešlić, N. Korać and N. Marković (2010): The cluster analysis of clones obtained from authochonous cultivar Kreaca (Vitis vinifera L.) - Genetika, Vol 42, No. 3, 415 -424.

The purpose of this paper was to characterize the clones obtained from Kreaca, autochthonous grapevine cultivar of Banat. Based on examination of 6 important biological and technological properties, phenotypic and genetic divergence of 28 selected clones was established. The divergence was determined using ANOVA and hierarchical cluster analysis. Using variance analysis, for grape weight, yield, total acid content, sugar content and sugar/acid ratio very significant or significant differences were obtained between clones. The UPGA method was used and the Euclidean distance in order to determine the difference between the groups. Two clone groups were obtained on the dendrogram. The objective of clone differentiation was primarily cluster weight, although other properties were taken into account as well. As the most perspective clones for further investigation and production, that can be recommended, were clones 12/5/5, 56/11/7 and 69/11/7.

Key words: clone, cluster analysis, Kreaca, virus status

Corresponding author: Vera Rakonjac, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade-Zemun, Serbia, tel: +381 11 2615315/363 e-mail: verak@agrif.bg.ac.rs

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Published in „GENETIKA“ Vol. 42, No.3 (2010), pp. 425 -434

Serbia

UDC 575:633
DOI: 10.2298/GENSR1003425K

Original scientific paper

EFFECTS OF genotype and mechanical damage during harvest ON field pea (Pisum sativum L.) Seed quality

Đura Karagić, Slobodan Katić, Aleksandar Mikić,Milka Vujaković, Dragan Milić,

Sanja Vasiljević, Branko Milošević

Institute of Field and Vegetable Crops, Novi Sad, Serbia

Abstract

Karagić Đ., S. Katić, A. Mikić, M.Vujaković, D. Milić, S. Vasiljević and B. Milošević (2010): Effects of genotype and mechanical damage during harvest on field pea (Pisium sativum L.) seed quality - Genetika, Vol 42, No. 3,425 -434.

Three field pea genotypes (NS Junior, Jezero and Javor) have been assessed for effects of genotype and mechanical damage during harvest on most important parameters of the physical quality of seed. Four harvest treatments were examined (hand harvest, mechanized harvest at 500, 650 and 800 rpm). After harvest, purity of harvested seed and percentages of seeds damaged by insects, seeds with cracked seed coat and broken seeds were analyzed. Highest contents of seeds with damaged seed coat (9.0%) and broken seeds (11.3%) were found in Javor, the genotype with largest seeds. After seed processing, seed vigor, germination, proportion of atypical seedlings and 1000-seed weight were determined. Lowest values of seed vigor and germination (79.8% and 84.9%, respectively) and the largest proportion of atypical seedlings (11.4%) were found in the genotype Javor. Highly significant correlations were found between seed vigor, germination and atypical seedlings on one side and 1000-seed weight on the other (r = - 0.53**, r = - 0.51**, and r = 0.60**, respectively). Damages that increase the portion of atypical seedlings have the largest impact on the quality of pea seeds. This characteristic is determined by the genotype, which should be kept in mind when defining objectives of field pea breeding programs.

Key words: germination, field pea, seed coat, 1000-seed weight

Corresponding author: Đura Karagić, Institute of Field and Vegetable Crops, Maksim Gorki St. 30, 21000 Novi Sad, Serbia, 064/82 05 745, djura.karagic@ifvcns.ns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 435 -453

Serbia

UDC 575:630
DOI: 10.2298/GENSR1003335B

Original scientific paper

VARIJABILNOST MAKROELEMENATA ISHRANE U LISTU LUŽNJAKA

(Quercus robur L.) NA PODRUČJU SRBIJE

Branislava BATOS ¹ , Zoran MILETIC¹, Sasa ORLOVIC ², Danijela MILJKOVIC³

¹Institut za šumarstvo, Beograd, Srbija

²Poljoprivedni fakultet, Univerzitet Novi Sad, Novi Sad, Srbija

³ Institut za biološka istraživanja “Siniša Stanković”, Beograd, Srbija

Abstract

Batos B., Z. Miletić, S. Orlović, and D. Miljković (2010): Variability of nutritive macroelements in peduncalate oak (Quercus robur L.) leaves in Serbia.- Genetika, Vol 42, No. 3, 435-453.

Nowadays, the territory of pedunculate oak (Quercus robur L.) in Serbia is less widespread than in the past, primarily as the consequence of excessive exploitation and aggravated regeneration caused by the changed groundwater regime. The researches in this paper were aimed at the analysis of the variability of the content of macroelements in leaves, as well as of the soil characteristics in the pedunculate oak populations on the different sites, according to which the sites with the best conditions for the nutrition of pedunculate oak would be singled out. The analysed populations are of natural or artificial origin, and they occurred during the process of restitution. They are situated in the zone ranging from continental to moderate continental climate, at five different localities and five different types of soil. Foliar analyses of 150 individual - trees of pedunculate oak at five sites in Serbia and the respective soil analysis show that individual variability in macroelements among trees was not statistically significant, while the site effect was highly significant. Concentrations of elements, at all sites, in the decrease sequence were: N>Ca>K>Mg>P>Na. The highest individual variability was exhibited by Na, followed by Mg, Ca and K, and P as well as N had the lowest variability. The obtained results point to the conclusion that the variability of the content of macroelements in leaves is mainly the result of the environmental influence. Statistically significant intra-individual variability, as an indicator of the existence of genetic differences between trees within populations, was detected only for Ca concentration in leaves.

Key words: individual and population variability, leaf, macroelements, Quercus robur, soil

Corresponding author: Branislava Batos, Institut za šumarstvo, Kneza Višeslava 3, 11030 Beograd, Srbija. E-mail: bbatos@yahoo.com; zoranmil@ptt.rs, phone: +381 11 355 3355 fax: +381 11 254 5969

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 455 -464

Serbia

UDC 575:633.15

DOI: 10.2298/GENSR1003455D

Original scientific paper

PARAMETERS IN THE ESTIMATION OF THE MOST SUITABLE F₂POPULATION SIZE IN CONVENTIONAL MAIZE (Zea mays L.) BREEDING PROGRAMS

Nenad DELIĆ, Jovan PAVLOV, Vojka BABIĆ, Gordana ŠURLAN-MOMIROVIĆ and Tomislav ŽIVANOVIĆ

Maize Research Institute Zemun Polje, Belgrade, Republic of Serbia

Abstract

Delić N., J. Pavlov, V. Babić, G. Šurlan Momirović and T. Živanović (2010): Parameters in the estimation of the most suitable F₂population size in conventional maize (Zea mays L.) breeding programs- Genetika, Vol 42, No. 3, 455-464.

The objective of the present study was to observe differences among four sizes of the F₂ populations (100, 200, 300 and 500 plants) on the basis of test-crosses for grain yield according to the average values of the populations, genetic and phenotypic variances, genotypic and phenotypic coefficients of variations and broad-sense heritability. The values of genetic variance did not significantly differ over population sizes according to all possible comparisons, including the comparison of values obtained for the phenotypic variance. Furthermore, the values of broad-sense heritability (67.8%-69%) did not significantly vary over different F₂ population sizes. Genetic variability of the observed progenies, as a principal prerequisite of successful selection, was at the satisfactory level in all population sizes.

Key words: genetic variability, F₂ population, heritability, maize, recombination, yield

Corresponding author: Nenad Delić, Maize Research Institute “Zemun Polje”, Belgrade,S. Bajića 1, 11185 Belgrade, ndelic@mrizp.rs, fax: +(381)11 3756-707

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 465 -474

Serbia

UDC 575:633.11
DOI: 10.2298/GENSR1003335B

Original scientific paper

EFFECT OF NITROGEN AND ECOLOGICAL FACTORS ON QUALITY OF WINTER TRITICALE CULTIVARS

Veselinka ZEČEVIĆ¹, Desimir KNEŽEVIĆ², Jelena BOŠKOVIĆ¹

and Slobodan MILENKOVIĆ¹

¹Faculty of Biofarming, Bačka Topola, Megatrend University, Belgrade, Serbia

²Faculty of Agriculture, Zubin Potok, University of Priština, Serbia

Abstract

Zečević V., D. Knežević, J. Bošković and S. Milenković (2010): Effect of nitrogen and ecological factors on quality of winter triticale cultivars - Genetika, Vol 42, No. 3, 465 -474.

Field experiments were conducted during three growing seasons of (2004/05, 2005/06 and 2006/07) to investigate the effect of various nitrogen doses on quality components of two winter triticale cultivars (Favorit and Trijumf). Nitrogen fertilizers are applied in four doses: N₁= 60 kg N ha^-1, N₂= 90 kg N ha^-1 and N₃= 120 kg N ha^-1. Analysis of sedimentation, gluten content, and rheological flour and dough properties were done. The results showed that N fertilization significantly increased investigated quality traits in both cultivars. The highest sedimentation value and gluten content established with application of 120 kg N ha^-1. Triticale cultivars reacted positively to nitrogen increasing, and its rheological flour and dough properties increased with N increasing. Nevertheless, quality of investigated cultivars belonged to C₂ quality group. By the analysis of variance established high significant differences in mean values of sedimentation, wet gluten content and water absorption among the cultivars (A), years (B) and supplied nitrogen doses (C). All interactions (AB, AC, BC and ABC) were significant for wet gluten content, but for sedimentation only AB interaction, while of water absorption was only significant interaction BC.

Key words: gluten, nitrogen, quality, sedimentation, rheological properties, triticale

Corresponding author: Gorjanović Biljana, Dušana Jerkovića 22, 22320 Inđija, 065 8432167, e-mail: lazzaric@ptt.rs

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Published in „GENETIKA“ Vol. 42, No.3 (2010), pp. 475 -484

Serbia

UDC 575:633.15

DOI: :10.2298/GENSR1003475B

Original scientific paper

THE PLUS-HYBRID EFFECT ON THE GRAIN YIELD

OF TWO ZP MAIZE HYBRIDS

Sofija BOŽINOVIĆ, Jelena VANČETOVIĆ, Milosav BABIĆ,

Milomir FILIPOVIĆ and Nenad DELIĆ

Maize Research Institute, Zemun Polje

Abstract

Božinović S., J.Vančetović, M.Babić, M.Filipović and N.Delić (2010): The plus-hybrid effect on the grain yield of two ZP maize hybrids- Genetika, Vol 42, No. 3,475 -484.

The combined effect of cytoplasmic male sterility and xenia on maize hybrid traits is referred to as the plus-hybrid effect. Two studied ZP hybrids differently responded to this effect for grain yield. All plus-hybrid combinations of the firstly observed hybrid had a higher yield than their fertile counterparts, but not significantly, while only one combination of the second hybrid positively responded, also without statistical significance. It seems that the observed effect mostly depended on the genotype of the female component.

Key words: cytoplasmic male sterility, maize, plus-hybrid effect, xenia

Corresponding author: Sofija Božinović, Maize Research Institute, Zemun Polje, Slobodana Bajića 1, Belgrade, Srbija,, phone: +381 11 37 56 704, email:sbozinovic@mrizp.rs

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Published in „GENETIKA“ Vol. 42, No.3 (2010), pp. 485-492

Serbia

UDC 575:633.32

DOI: 10.2298/GENSR1003485M

Original scientific paper

IMPORTANCE OF PROGENY TESTING IN ALFALFA BREEDING (Medicago sativa L.)

Dragan MILIĆ¹, Slobodan KATIĆ¹, Jan BOĆANSKI², Đura KARAGIĆ¹, Aleksandar MIKIĆ¹ and Sanja VASILJEVIĆ¹

¹Institute of Field and Vegetable Crops, Novi Sad, Serbia

²Faculty of Agriculture, University of Novi Sad, Serbia

Abstract

Milić D., S. Katić, J. Boćanski, Đ. Karagić, A. Mikić and S. Vasiljević (2010): Importance of progeny testing in alfalfa breeding (Medicago sativa L.) - Genetika, Vol 42, No. 3,485 -492.

The objective of this paper was to assess the importance and effectiveness of progeny tests that can be used in alfalfa breeding for increased green forage yields and shoot number per plant. A total of 35 alfalfa genotypes of different geographic and genetic origins were analyzed. The results of the study have shown that crossing full-sib or half-sib parents leads to a significant increase in yield and shoot number per plant. Significant inbreeding depression was observed in the S₁ progenies of all the genotypes involved. The choice of alfalfa parents must be based on progeny analysis. Which particular method will be used will depend on the objective of the breeding program.

Key words: alfalfa, progeny testing, shoot number, yield

Corresponding author: Dragan Milić, Institute of Field and Vegetable Crops, Novi Sad, Serbia email: dragan.milic@ifvcns.ns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 493 - 500

Serbia

UDC 575:634.5

DOI: 10.2298/GENSR1003493M

Original scientific paper

FRUIT CHARACTERISTICS IN WALNUT TREE POPULATION IN RELATION TO GROWING SEASON ONSET

Rade MILETIĆ¹, Nevena MITIĆ², and Radomirka NIKOLIĆ²

¹Fruit Research Institute Čačak, Serbia

²Institute for Biological Resesarch „Siniša Stanković“,

University of Belgrade, Serbia

Abstract

Miletić R., N. Mitić and R. Nikolić (2010): Fruit characteristics in walnut tree population in relation to growing season onset. - Genetika, Vol 42, No. 3, 493-500.

The objective of walnut selection is to obtain promissing genotypes characterised by later growing season onset, shorter period of vegetation, resistance to diseases, stable fruit productivity and high fruit quality. Aiming at obtaining genotypes with favourable properties, in five localities of Eastern Serbia, where walnut is widely grown, we studied the correlation among growing season onset on the one hand, and major pomological properites and fruit quality on the other. In the studied population, trees with early growing season onset and fruit mass up to 8.0 g (30.1%) were predominant, whereas those with late growing season onset were in minority, fruit mass ranging from 10.1 to 12 g (0.07%). Kernel ratio was highest in the former (20.69%), and the lowest in the latter (0.07%). Similar was observed in oil and raw proteins content in kernel which was highest in fruits of early trees (33.62%, 47,55%), while it was remarkably lower in late ones (0.72%, 0.49%). The obtained results suggest that the studied population was dominated by early trees and unfavourable or less favourable fruit properties. In spite of that, we evidenced some trees with favourable properties which can be used in breeding as donors of useful genes.

Key words: growing season onset, fruit properties, population, walnut

Corresponding author: Rade Miletić, Fruit Research Institute, Kralja Petra I, 9,32000 Čačak, Serbija, phone: 032/221-375,Fax 032/221-391,e-mail: radem@tfc.kg.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 501 - 512

Serbia

UDC 575:633
DOI: 10.2298/GENSR1003501B

Original scientific paper

ESTIMATES OF GENETIC VARIABILITY AND ASSOCIATION STUDIES IN QUANTITATIVE PLANT TRAITS OF ERUCA SPP. LANDRACES

Mehmet KADRI BOZOKALFA*, Dursun EŞIYOKHÜLYA İLBI,

Tansel KAYGISIZ AŞÇIOĞUL

Department of Horticulture, Faculty of Agriculture, Ege University, Bornova , İzmir, Turkey

Abstract

Bozokalfa Kadri M., D. Esiyokhulya Ilbi, and T. Kaygisiz Asciogul (2010): Estimates of genetic variability and association studies in quantitative plant traits of Eruca spp. Landraces. Genetika, Vol 42, No. 3, 501 -512

Despite the increasing of economical importance of rocket plant limited information is available on genetic variability for the agronomic traits among Eruca spp. Hence, heritability and association studies of plant properties are necessities for a successful further rocket breeding programme. The objective of this study was to examine phenotypic and genotypic variability, broad sense heritability, genetic advance, genotypic and phenotypic correlation and mean for agronomic traits of rocket plant. The magnitude of phenotypic coefficient of variation values for all the traits were higher than the corresponding values and broad sense heritability estimates exceeded 65% for all traits. Phenotypic coefficients of variability (PCV) ranged from 7.60 to 34.34% and genotypic coefficients of variability (GCV) ranged between 5.58% for petiole thickness and 34.30% for plant weight. The results stated that plant weight, siliqua width, seed per siliqua and seed weight could be useful character for improved Eruca spp. breeding programme.

Key words: Brassicaeae, genetic advance, germplasm, heritability, variability

Corresponding author: M. Kadri Bozokalfa, Department of Horticulture, Faculty of Agriculture, Ege University, Bornova 35100 İzmir, Turkey mehmet.kadri.bozokalfa@ege.edu.tr, Tel & Fax: +90 232 3881865

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Published in „GENETIKA“ Vol. 42, No. 3 (2010), pp. 513 -520

Serbia

UDC 575

DOI: 10.2298/GENSR11003513G

Original scientific paper

SPECIFICITY OF SSR LOCI FOR Melampsora SPECIES

ON POPLARS

Vladislava GALOVIĆ¹, Saša ORLOVIĆ¹, Predrag PAP¹, Branislav KOVAČEVIĆ¹, Miroslav MARKOVIĆ¹

¹Institute of lowland forestry and environment, Novi Sad, Serbia

Abstract

Galović V., S. Orlović, P. Pap, B. Kovačević and M. Marković (2010): Specificity of SSR loci for Melanospora species on poplars- Genetika, Vol 42, No. 3, 513-520.

Two rust fungi, Melampsora larici populina and Melampsora medusae are common in all poplar growing regions worlwide. M. larici populina is native to Eurasia, while M. medusae is endemic to eastern Unated States on Populus deltoides. Poplar leaf rust (Melampsora sp.) is widely spread disease in our country, and can cause significant growing problems. Race that prevails in our growing region is M. Larici populina. This work initiated the research of population composition, i.e. qualitative participation of Melampsora races in popoluation of black poplars hybrid progenies using molecular methods. When five SSR markers were used the results showed that M. larici populina was found in three tested clones, while only M. medusae was determined in clone I-214.

Key words: genetic characterisation, Melampsora sp., microsatellites, poplar

Corresponding author: Vladislava Galovic, University of Novi Sad, Institute of lowland forestry and environment, Antona Cehova 13b, 21000 Novi Sad, Serbia. Tel: +381 21 540383, Fax: +381 21 540385, e-mail: galovic@uns.ac.rs

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Published in „GENETIKA“ Vol. 42, No.3(2010), pp. 521 - 528

Serbia

UDC 575:633.842
DOI: 10.2298/GENSR1003521C

Original scientific paper

THE IMPORTANCE OF EARLINESS FOR CREATING NEW ms F₁ PEPPER HYBRIDS

Dejan CvikiĆ, Nenad PavloviĆ, Milka BRDARand Zdenka Girek

Institute for Vegetable Crops, Smederevska Palanka

Abstract

Cvikić D., N. Pavlović, M. Brdar and Z. Girek (2010): The importance of earliness for crating new msF1 pepper hybrids - Genetika, Vol 42, No. 3, 521-528.

Breeding new line pepper genotypes is an important goal for the Institute for Vegetable Crops, Smederevska Palanka. Years of selection resulted in great number of varieties, however, the selection of F₁ pepper hybrids started recently. Pepper F₁hybrids have proved to be better than cultivars in the terms of earliness, yield, plant uniformity, pathogen resistance etc. Considering significant heterosis values for earliness, this paper deals with the genetic analysis of F₁ and F₂ pepper hybrids, obtained by crossing four lines, including ms line HM-6.

Key words: pepper, selection, hybrid, earliness, ms line

Corresponding author: : Dejan Cvikić, Institute for Vegetable Crops, Karađorđeva 71, 11420 Smederevska Palanka, Serbia, Phone: 381 26 323 170, fax 381 26 323 785, e-mail: dcvikic@institut-palanka.co.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 529 - 534

Serbia

UDC 575:633.15

DOI: 10.2298/GENSR1003529N

Original scientific paper

GENETIC RELATIONSHIP BETWEEN YIELD AND

YIELD COMPONENTS OF MAIZE

Aleksandra NASTASIĆ¹, Đorđe JOCKOVIĆ¹, Mile IVANOVIĆ¹,

Milisav STOJAKOVIĆ¹, Jan BOĆANSKI², Ivica ĐALOVIĆ¹,

Zorana SREĆKOV²

¹Institute of Field and Vegetable Crops, Novi Sad, Serbia

²Faculty of Agriculture, Novi Sad, Serbia

Abstract

Nastasić A., Đ. Jocković, M. Ivanović, M. Stojaković, J.Bočanski, I.Đalović, Z.Srečkov (2010): Genetic relationship between yield andyield components of maize - Genetika, Vol. 42, No. 3, 529 -534.

One of the objectives of this paper was to determine relationship between grain yield and yield components, in S₁ and HS progenies of one early synthetic maize population. Grain yield was in high significant, medium strong and strong association with all studied yield components, in both populations. The strongest correlation was recorded between grain yield and 1000-kernel weight (S₁ progenies r_g = 0.684**; HS progenies r_g = 0.633**). Between other studied traits, the highest values of genotypic coefficient of correlations were found between 1000-kernel weight and kernel depth in S₁ population, and 1000-kernel weight and ear length in HS population. Also, objective of this research was founding the direct and indirect effects of yield components on grain yield. Desirable, high significant influence on grain yield, in path coefficient analysis, was found for 1000-kernel weight and kernel row number, and in S₁ and HS progenies, and for ear length in population of S₁ progenies. Kernel depth has undesirable direct effect on grain yield, in both populations.

Key words: donor of favourable alleles, heterosis, .inbred line, maize, rank correlation

Corresponding author: Aleksandra Nastasić, aleksandra.nastasic@ifvcns.ns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 535 - 544

Serbia

UDC 575:635.652

DOI: 10.2298/GENSR1003535V

Original scientific paper

ANALYSIS OF GRAIN SIZE IN BEAN (Phaseolus vulgaris L.) BY LINEAR AND BILINEAR MODELS

Mirjana VASIĆ¹, Jelica GVOZDANOVIĆ-VARGA¹, Miroslav ZORIĆ²,

Marija KRALJEVIĆ BALALIĆ³ and Janko ČERVENSKI¹

¹Institute of Field and Vegetable Crops; ² Faculty of Technology, University of Novi Sad; ³Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia

Abstract

Vasić M., J.Gvozdanović-Varga, M. Zorić, M.Kraljević Balalić, J.Červenski, (2010): Analysis of grain size in bean (Phaseolus vulgaris L.) by linear and bilinear models -Genetika, Vol 42, No. 3, 535-544.

Bean grain size, along with grain color and shape, is a constituent of bean’s market quality. In order to be able to satisfy the broad market demand, cultivars with grain of all classes (from the smallest to largest) and top agronomic qualities must be developed. This paper analyzed 24 bean genotypes. They had different grain size in terms of their specific responses to growing conditions over three growing seasons. The two-way ANOVA was used to separate the main effects responsible for the formation of grain of a particular size. The genotype effects were 89.9%, the year effects 2.2%, and those of genotype x year interaction 7.9%. A large portion of interaction variability was attributable to two (AMMI) or tree (SREG) highly significant (by the Gollob F-test) principal components. Most of the genotypes exhibited high stability. The various types of interactions between individual genotypes and growing conditions in a given year are shown in two types of biplot graphs (GE and GGE).t to introduce organic agriculture programs in breeding institutions.

Key words: AMMI, biplot, dry bean, grain size, interaction types, SREG

Corresponding author: Mirjana Vasić, Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia, mirjana.vasic@ifvcns.ns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 545-555

Serbia

UDC 575:633.11

DOI: 10.2298/GENSR1003545P

Original scientific paper

The variation of yield components in wheat (Triticum aestivum L.) in response to stressful growing conditions of alkaline soil

Sofija Petrović¹, Miodrag Dimitrijević¹, Milivoj BELIĆ¹, Borislav BANJAC¹,Jelena Bošković²,Veselinka Zečević²and Borivoj PEJIĆ¹

¹ Department of Field and Vegetable Crops, Faculty of Agriculture, University of Novi Sad, Serbia

² Faculty of Biofarming - Bačka Topola, Megatrend University, Belgrade, Serbia

Abstract

Petrović S., M. Dimitrijević, M. Belić, B.Banjac, J.Bošković, V.Zečević and B. Pejić (2010): The variation of yield components in wheat (Triticum aestivum L.,) in response to stressful growing conditions of alkaline soil - Genetika, Vol 42, No. 3 545 -555.

The paper presents the results of experiments with 11 varieties of wheat grown in alkaline soil stressful conditions. The experiment was set up at the site in the Banat, on the non-ameliorated solonetz soil, as control variante, and with ameliorative measures using phosphogypsum. The phenotypic variability and genotype by environment interaction for the grain number and weight per spike, using AMMI model in three vegetation seasons were studied. The analysis of the results revealed that the tested varieties responded differently to external, stressful conditions and ameliorative measures. Based on the AMMI analysis results the significance of PCA axis was observed.

Key words: AMMI, solonetz, stability, wheat, yield components

Corresponding author: Sofija Petrović, Faculty of Agriculture, sq. D. Obradovića 8, 21000 Novi Sad, Serbia. Phone: +381 21 485 3211, e-mail sonjap@polj.uns.ac.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 555-563

Serbia

UDC 575:633.15

DOI: 10.2298/GENSR1003555D

Original scientific paper

THE VARIATION OF PHYTIC AND INORGANIC PHOSPHORUS IN LEAVES AND GRAIN IN MAIZE POPULATIONS

Vesna DRAGIČEVIĆ, Dragan KOVAČEVIĆ, Slobodanka SREDOJEVIĆ, Zoran DUMANOVIĆ and Snežana MLADENOVIĆ DRINIĆ

Maize Research Institute “Zemun Polje”, Belgrade, Serbia

Abstract

Dragičević V., D. Kovačević, S. Sredojević, Z. Dumanović and S. Mladenović Drinić (2010): The variation of phytic and inorganic phosphorus in leaves and grain in maize populations - Genetika, Vol 42, No. 3, 555 -563.

The phytate function in plants is still not completely understood: it is the primary storage P form in seeds that is utilized during germination and early seedling development. Approaches to resolve problem of the bad nutritive quality of grain phytate include engineering of crops with reduced levels of seed phytic acid. The objective of this study was to investigate genetic variability and correlation of phytic (P_phy) and inorganic phosphorus (P_i) and soluble proteins among 28 maize populations, consisted into three groups: low-, intermediate- and high-phytic populations, with the aim to determine the potential of enhancing the P profile of maize plants and high grain yield through selection. The highest genetic variability of P_i and P_phy content in leaves was expressed in group with intermediate P_phy content in grain. Meanwhile, leaves of low-phytic populations were characterized with low P_phy, too (averagely 18%) and high content of soluble proteins (averagely 15%) in relation to high- and intermediate-phytic populations. Additionally, the lowest genetic variability of protein content was also noticeable in leaves of low-phytic populations. Positive correlation between P_i and protein content was observed in leaves of low- and high-phytic populations. The negative correlation between P_phy and P_i was detected in maize grain, but correlation was significant only in intermediate-phytic group. The highest, but not significant, average yield was observed in group of low-phytic populations, as well as its relative high genetic variability. That indicates that development of high yielding genotypes with lower phytate in grain is reasonable, and could be potentially useful in enhancing the sustainability and decreasing of environmental impact in agricultural production.

Key words: inorganic phosphoorus, maize populations, phytic phosphorus, soluble proteins

Corresponding author: Vesna Dragićević, e-mail: vdragicevic@mrizp.rs

Phone +381113756704, Fax: +381113756707

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 565-574.

Serbia

UDC 575:633.15

DOI: 10.2298/GENSR1003565Z

Original scientific paper

COMBINING ABILITIES OF MAIZE INBRED LINES FOR GRAIN YIELD AND YIELD COMPONENTS

Tomislav ŽIVANOVIĆ¹, Gordana BRANKOVIĆ¹, Slavko RADANOVIĆ²

¹ Faculty of Agriculture, Belgrade, Serbia

² Agricultural Institute of Republika Srpska, Banja Luka, Bosnia and Herzegovina

Abstract

Živanović T., G. Branković, and S.Radanović (2010): Combining abilities of maize inbred lines for grain yield and yield components.- Genetika, Vol 42, No. 3,565-574.

Diallel mating design experiment with reciprocal crosses was used to determine combining abilities of five maize inbred lines and their hybrid combinations for grain yield, ear length, ear diameter, number of kernel rows per ear, number of kernels per row in 2005. and 2006. year. GCA and SCA significant values were observed for all traits under study in both years. GCA/SCA relation showed that dominant gene effect had prevalent influence in the inheritance of grain yield, ear length and ear diameter. Additive gene effect had larger importance in the inheritance of number of kernel rows per ear. NS-1445 inbred line showed best GCA effect for grain yield, ear length and number of kernels per row, but worst GCA effect for number of kernel rows per ear. Best GCA effect for ear diameter achieved inbred line F-7R. Line BL-47 showed best GCA effect for number of kernel rows per ear in both years, but also the worst GCA effect for grain yield and number of kernels per row. Hybrid combination NS-1445 x BL-47 showed largest SCA effect for grain yield in both years and also showed, like hybrid combination F-7R x NS-1445, significant SCA effects for all other traits, except ear diameter. This cross also proved that hybrid combinations that include one parent with good GCA effect and the other parent with bad GCA effect can have very successful performance. It will be useful during selection material testing, to keep also genotypes which show bad GCA effect, but have phenotypic favorable trait values. Reciprocity effect was significant for SCA effects of all traits but ear diameter. It is the conformation of involvement of plasmagenes in maize quantitative traits inheritance. The largest reciprocity effect for grain yield achieved F-7R x BL-47 in both years. Significantly higher grain yield in this hybrid combination was achieved when line F-7R was used as a female parent and significantly higher number of kernel rows per ear was achieved when line BL-47 was used as a female parent.

Key words: combining abilities, GCA, gene effects, maize, SCA

Corresponding author: Gordana Branković, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Beograd, gbrankovic@agrif.bg.ac.rs, phone: 0112615315/lok.239, fax: (0)113161987

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 575-583.

Serbia

UDC 575:635.34
DOI: 10.2298/GENSR1003575D

Original scientific paper

INHERITANCE OF YIELD COMPONENTS IN TOMATO

Radiša ĐORĐEVIĆ¹,Bogoljub ZEČEVIĆ¹, Jasmina ZDRAVKOVIĆ¹,

Tomislav ŽIVANOVIĆ² and Goran TODOROVIĆ³

¹Institute of Vegetable Crops, Smederevska Palanka,

²Faculty of AgricultureBelgrade-Zemun

³institute for Medicinal Plant Research "Dr Josif Pančić"

Abstract

Đorđević R., B. Zečević, J. Zdravković, T. Živanović and G. Todorović (2010): Inheritance of yield components in tomato - Genetika, Vol 42, No. 3, 575-583.

The aim of the present study was to estimate, on the basis of diallel crossing, superior-parent heterosis, components of genetic variability and trait heritability for three yield components in tomato, and to perform the VrWr regression analysis. Six different tomato inbred lines originating from local and introduced breeding material were selected for the study. The hybrids expressed greater mean values for the majority of the traits than the inbred lines. The value of additive component of variance (D) was higher than the value of the dominant variance (H₁ and H₂) for the number of fruits per plant and the average fruit weight, while the value of the dominant component of variance was higher for the fruit weight per plant. Positive values of additive x dominant genetic effect interaction (F) for the observed traits point to a greater participation of dominant alleles in the inheritance of these traits, which was confirmed by the coefficients H₂/4H₁ (0.208-0.228) and by the ratio KD/KR being greater than unity (1.129-1.536). The values of the average degree of dominance , lower than unity for the number of fruits per plant and the average fruit weight, indicate that these traits were inherited by partial dominance. Furthermore, values of the degree of dominance greater than unity for the fruit weight indicate that this trait was inherited by dominance or superdominance. These conclusions were also confirmed by high values of the broad‑ and narrow-sense heritability that varied from 98.88% to 99.44%, i.e., from 45.06 to 87.51%, respectively, as well as, by the VrWr regression for the observed traits in the F₁ generation.

Key words: heritability, heterosis, regression analysis, tomato, yield components

Corresponding author: Goran Todorovic,institute for Medicinal Plant Research "Dr Josif Pančić", email.: gtodorovic@mocbilja.rs

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Published in „GENETIKA“ Vol. 42, No. 3(2010), pp. 585-598.

Serbia

UDC 575:631
DOI: 10.2298/GENSR1003585M

Original scientific paper

THE IMPORTANCE AND IMPLICATION OF GENETIC RESOURCES

IN AGRICULTURE

Mirjana MILOŠEVIĆ¹, Mirjana MILORADOV²,

Saša DRAGIN¹, and Milan STEGIĆ³

¹Faculty of agriculture, Novi Sad

²Faculty of technical sciences, Novi Sad

³Ministry of Agriculture, Forestry and Water Management of Republic Serbia

Abstract

Milošević M., M. Miloradov, S. Dragin and M. Stegić (2010): The importance and implication of genetic resources in agriculture - Genetika, Vol 42, No. 3, 585-598.

The maintenance and preservation of biodiversity is going through the processes of conservation and restoration of disturbed ecosystems and habitats, as well as the preservation and recovery of species. Genetic diversity means the variety and total number of genes contained in plant and animal species and microorganisms. Genetic diversity is the basic unit of diversity, which is responsible for differences between individuals, populations and species.

Genetic diversity is very important for the preservation of biodiversity and can be saved in several ways. Part of the germplasm is maintained through breeding programs as they evaluate germplasm stored and used as a source of needed diversity.

The Convention on Biological Diversity is one of the most important international agreements to protect nature and conserve genetic resources. International treaties governing the use of genetic resources for food and agriculture are a way to ensure the conservation and sustainable use of plant resources for food and agriculture, and to regulate the rights of farmers.

Key words: biodiversity, conservation of genetic resources, farmer rights, genetic diversity

Corresponding author: Milošević Mirjana, Jiričekova 19, Novi Sad, phone: 063/436 531, e-mail: m.milosevic@minpolj.gov.rs

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