GENETIKA, Vol. 32, No.1 (2000)

 

Srđan BOJOVIĆ, Philippe HEIZMANN, and Marcel BARBERO

FRAXINUS ORNUS L. SEXUAL POLYMORPHISM AND RAPD MARKERS [Abstract]

 

Bojana KLAŠNJA, Špiro KOPITOVIĆ, Saša ORLOVIĆ, and Zoran GALIĆ

VARIABILITY OF SOME STRUCTURAL AND PHYSICAL PROPERTIES OF BLACK LOCUST (ROBINIA PSEUDOACACIA L.) WOOD [Abstract]

 

Branislav KOVAČEVIĆ, Vojislav GUZINA, and Marija KRALJEVIĆ-BALALIĆ

ANALYSIS OF THE DISCRIMINATION ABILITY OF LEAF MORPHOMETRIC PARAMETERS IN EASTERN COTTONWOOD (POPULUS DELTOIDES BARTR.) CLONES AND HYBRIDS [Abstract]

 

Gordan ZEC, Radmila TODOROVIĆ, Petar MIŠIĆ, and Slavica ČOLIĆ

VARIABILITY AND CORRELATION ANALYSIS OF FRUIT TRAITS OF SELECTED GENOTYPES OF VINEYARD PEACH (PRUNUS PERSICA L. BATSCH.) [Abstract]

 

Sanja VASILJEVIĆ, Gordana ŠURLAN-MOMIROVIĆ, Slobodan KATIĆ, Vojislav MIHAILOVIĆ, Dane LUKIĆ, and Tomislav ŽIVANOVIĆ

RELATIONSHIPS BETWEEN GREEN FORAGE AND SEED YIELD COMPONENTS IN GENOTYPES OF RED CLOVER (TRIFOLIUM PRATENSE L.) [Abstract]

 

Zoran LUGIĆ, Mile IVANOVIĆ, Kosana KOSTANTINOV, Dušica DELIĆ, Jasmina RADOVIĆ, and Zorica TOMIĆ

MULTIPLE REGRESSION ANALYSIS FOR DRY MATTER YIELD AND PRINCIPAL PARAMETERS OF BIOLOGICAL NITROGEN FIXATION INTENSITY IN RED CLOVER (TRIFOLIUM PRATENSE L.) [Abstract]

 

Ivan HUSIĆ, Slobodan TRIFUNOVIĆ, Milorad ROŠULJ, and Milomir FILIPOVIĆ

B84 VS. B37 MAIZE HYBRID PERFORMANCE [Abstract]

 

Jovanka ATLAGIĆ

CYTOGENETIC STUDY OF HELIANTHUS RIGIDUS AND ITS F₁ AND BC₁F₁ HYBRIDS WITH THE CULTIVATED SUNFLOWER, HELIANTHUS ANNUUS [Abstract]

 

Milomirka MADIĆ, Miroslav KUBUROVIĆ, and Aleksandar S. PAUNOVIĆ

GENETIC ANALYSIS OF GRAIN MASS PER PLANT IN BARLEY HYBRIDS [Abstract]

 

Momčilo MILUTINOVIĆ, Dragan NIKOLIĆ, Milica FOTIRIĆ, and Vera RAKONJAC

THE RELATION BETWEEN POLLEN FUNCTIONAL ABILITY AND FRUIT SET IN GRAPEVINE (VITIS SP.) [Abstract]

 

Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 1-8

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.18

Original scientific paper

 

FRAXINUS ORNUS L. SEXUAL POLYMORPHISM AND RAPD MARKERS

Srđan BOJOVIĆ^1,3, Philippe HEIZMANN², and Marcel BARBERO³

 

¹ “Srbijašume”-Institute of Forestry, Kneza Višeslava 3, Belgrade, Yugoslavia

² Reconnaissance Cellulaire et Amélioration des Plantes, UMR 9938- CNRS-INRA, Ecole Normale Supérieure-Lyon, 46 allée d'Italie, 69364 Lyon, France

³ Institut Méditerranéen d'Ecologie et de Paléoécologie, CNRS-UPRES A 6034, Av. Escadrille Normandie Niemen, 13397 Marseille, France

 

Abstract

 

Bojović S., P. Heizmann, and M. Barbero (2000): Fraxinus or­nus L. sexual polymorphism and RAPD markers. – Genetika, Vol. 32, No. 1, 1-8.

Manna ash (Fraxinus ornus L.) is a mainly Mediterranean forest tree species of wide ecological amplitude. In terms of floral biology Fraxinus ornus L. shows an extremely rare form of sex expression - an­drodioecy; defined by simultaneous presence of male and hermaphrodite flowers on separate individuals. It is a rare and original system, both from the theoretical and empirical points of view. Possible sex differen­tiation between 10 male and 10 hermaphrodite individuals was examined using RAPD markers. Five informative primers with 89 bands were found; 70 bands (79%) were polymorphic, and 19 (21%) were monomor­phic. On the basis of 9 selected RAPD bands, Correspondence Analysis visualized the following tendency: 20 trees were separated into two groups that mainly correspond to different sexual types. RAPD markers indicate that they could be used in differentiating sexual types of Manna Ash.

Key words: Fraxinus ornus, androdioecy, RAPD markers, RAPD bands

 

 

Corresponding author: Srđan Bojović, “Srbijašume”- Institute of Forestry, Kneza Višeslava 3, 11000 Belgrade, Yugoslavia

Phone: (+381 11) 553 355, e-mail: bojos@ptt.yu

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 9-17

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.21

Original scientific paper

 

VARIABILITY OF SOME STRUCTURAL AND PHYSICAL PROPERTIES OF BLACK LOCUST (ROBINIA PSEUDOACACIA L.) WOOD

Bojana KLAŠNJA, Špiro KOPITOVIĆ, Saša ORLOVIĆ, and Zoran GALIĆ

 

Agricultural Faculty Novi Sad, Poplar Research Institute, 21000 Novi Sad Yugoslavia

 

 

Abstract

 

Klašnja B., Š. Kopitović, S. Orlović, and Z. Galić (2000): Vari­ability of some structural and physical properties of black locust (Robinia pseudoacacia L.) wood. – Genetika, Vol. 32, No. 1, 9-17.

This paper presents the results of research on the variability of the main structural (annual ring width and fibre length) and physical properties (density - basic and oven dry) of wood of 10 black locust (Robinia pseudoacacia L.) clones. The samples of increment cores were taken from a field polyclonal test established in 1983 at the Poplar Re­search Institute Test Field on fluvisol soil. The samples were taken when the plantation was six, eight and thirteen years old. The clones were very different regarding the studied properties. The values of fibre length and annual ring width were also highly significantly different between study years. Interclonal variability was very pronounced, which is shown by the many groups obtained after cluster analysis. The coefficients of broad sense heritability for the analyzed properties at different ages ranged be­tween 0.15 and 0.98. Marked interclonal variability indicates the signifi­cant potential for enhancing production by clonal selection for desirable structural and physical properties while determine the value of timber.

Key words: Black locust, structural - physical properties, selection

 

 

Corresponding author: Bojana Klašnja, Antona Čehova 13, 21000 Novi Sad, Yugoslavia

phone: 021 422 477, fax: 021 420 307

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 19-30

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.21

Original scientific paper

 

ANALYSIS OF THE DISCRIMINATION ABILITY OF LEAF MORPHOMETRIC PARAMETERS IN EASTERN COTTONWOOD (POPULUS DELTOIDES BARTR.) CLONES AND HYBRIDS

Branislav KOVAČEVIĆ¹, Vojislav GUZINA¹, and Marija KRALJEVIĆ-BALALIĆ²

 

¹ Poplar Research Institute, Faculty of Agriculture, University of Novi Sad,

² Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Yugoslavia

 

 

Abstract

 

Kovačević B., V. Guzina, and M. Kraljević-Balalić (2000): Analysis of the discrimination ability of leaf morphometric parameters in eastern cottonwood (Populus deltoides Bartr.) clones and hybrids. – Ge­netika, Vol. 32, No. 1, 19-30.

The discrimination ability of 8 measured and 15 parameters de­rived as mutual ratios of the first six measured parameters was examined in 20 clones and hybrids of eastern cottonwood in two nursery experi­ments differing in year, site and planting density. The measured parame­ters showed low broad sense heritability in contrast to the derived pa­rameters. High heritability (around 60% and more) was found particularly for parameters of blade shape (ratios of blade lengths and widths). Ac­cording to loadings from principal component analysis the examined pa­rameters were grouped into six clusters. The first cluster consisted of pa­rameters of blade shape, while the second cluster contained measured pa­rameters of low-heritability. Stepwise discrimination analysis models with eight parameters achieved 74% of correct classification, while the discrimination model with all 23 parameters achieved 84%. Among the eight parameters, two were measured parameters from the second cluster, which were included before three parameters from the first cluster. That is explained by multicolinearity among parameters of the same cluster.

Key words: morphometric leaf parameters, Populus deltoides, heritabil­ity, principal component analysis, stepwise discriminant analysis

 

 

Corresponding author: Branislav Kovačević, Poplar Research Institute, Faculty of Agriculture, University of Novi Sad, Antona Čehova 13, 21000 Novi Sad, Yugoslavia

phone: +381-21-423943, fax: +381-21-420307

e-mail: branek@polj.ns.ac.yu

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 31-36

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.21; 634.25

Original scientific paper

 

VARIABILITY AND CORRELATION ANALYSIS OF FRUIT TRAITS OF SELECTED GENOTYPES OF VINEYARD PEACH (PRUNUS PERSICA L. BATSCH.)

Gordan ZEC, Radmila TODOROVIĆ, Petar MIŠIĆ, and Slavica ČOLIĆ

 

Research Institute PKB “INI – Agroekonomik”, Fruit and grape research station, Padinska Skela, 11000 Belgrade, Yugoslavia

 

Abstract

 

Zec G.N., R. Todorović, P.D. Mišić, and S. Čolić (2000): Vari­ability and correlation analysis of fruit traits of selected genotypes of vineyard peach (Prunus persica L. Batsch.). – Genetika, Vol. 32, No. 1, 31-36.

Native populations of vineyard peach in Serbia represent a rich source of genetic variability which can contribute to the improvement of economically most important traits of cultivars and rootstocks of peach grown nowadays. Vineyard peach seedlings are the most important peach rootstocks used in Serbia (Mišić et al., 1988) and abroad. Their fruits have a specific taste and aroma, and they are suitable for fresh use as well as for processing into juices and marmalades. As reported by Iezzoni (1991), Prunus germplasm existing in Europe and the countries of the former USSR represents a rich resource which can provide material for successful breeding of many species. Genetic variability of the most im­portant peach cultivars in the world is very limited, as noted by Scorza et al. (1985).

Key words: vineyard peach, selections, variability, correlation

 

 

Corresponding author: Gordan Zec, Research Institute PKB “INI – Agroekonomik”, Fruit and grape research station, Padinska Skela, 11000 Belgrade, Yugoslavia

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 37-43

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 633.32

Original scientific paper

 

RELATIONSHIPS BETWEEN GREEN FORAGE AND SEED YIELD COMPONENTS IN GENOTYPES OF RED CLOVER (TRIFOLIUM PRATENSE L.)

Sanja VASILJEVIĆ¹, Gordana ŠURLAN-MOMIROVIĆ², Slobodan KATIĆ¹, Vojislav MIHAILOVIĆ¹, Dane LUKIĆ¹, and Tomislav ŽIVANOVIĆ²

 

¹ Institute of Field and Vegetable Crops, 21000 Novi Sad,

² Faculty of Agriculture, 11000 Zemun-Belgrade, Yugoslavia

 

Abstract

 

Vasiljević S., G. Šurlan-Momirović, S. Katić, V. Mihailović, D. Lukić, and T. Živanović (2000): Relationships between green for­age and seed yield components in genotypes of red clover (Trifolium pratense L.). – Genetika, Vol. 32, No. 1, 37-43.

Analyses of variance and covariance for green forage and seed yield components have been used to calculate the coefficients of genetic and phenotypic correlations in certain varieties and populations of red clover. The intention was to establish the existence of relationships among these characteristics. The study included 17 varieties and 16 populations of red clover in the second year of cultivation. Samples (30 plants per genotype) for the analysis of green forage yield components were taken at the stage of flowering of primary inflorescences from plants from the first cutting. Thirty randomly selected plants, i.e., 150 inflores­cences per variety or population, from the first cutting in the second year were sampled for analysis of the following characteristics: number of productive stems per plant, number of inflorescences per plant, number of florets per inflorescence, number of seeds per inflorescence and seed yield per plant.

Key words: red clover (Trifolium pratense L.), variety, population, green forage and seed yield components, coefficients of genetic and phenotypic correlation

 

 

Corresponding author: Sanja Vasiljević, Institute of Field and Vegetable Crops,

Maksima Gorkog 30, 21000 Novi Sad, Yugoslavia

Phone.: 381-21-411888 (ext. 167)

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 45-52

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 633.32

Original scientific paper

 

MULTIPLE REGRESSION ANALYSIS FOR DRY MATTER YIELD AND PRINCIPAL PARAMETERS OF BIOLOGICAL NITROGEN FIXATION INTENSITY IN RED CLOVER (TRIFOLIUM PRATENSE L.)

Zoran LUGIĆ¹, Mile IVANOVIĆ², Kosana KOSTANTINOV², Dušica DELIĆ¹, Jasmina RADOVIĆ¹, and Zorica TOMIĆ¹

 

¹ Agricultural Research Institute, Serbia Belgrade,

Center for Forage Crops, 37000 Kruševac,

² Maize Research Institute, Zemun Polje, 11080 Belgrade-Zemun, Yugoslavia

 

Abstract

 

Lugić Z., M. Ivanović, K. Kostantinov, D. Delić, J. Radović, and Z.Tomić (2000): Multiple regression analysis for dry matter yield and principal parameters of biological nitrogen fixation intensity in red clover (Tri­folium pratense L.). – Genetika, Vol. 32, No. 1, 45-52.

Correlation and regression analyses of interrelations and effect of seven biological nitrogen fixation parameters were carried out in red clo­ver. Close correlation was found for dry matter yield and the following traits: plant height, root mass and nitrogenase activity. Close correlation was also detected for nitrogenase activity, crude protein content, as well as for number of nodules and the majority of observed parameters. Plant height and number of nodules had a strong direct effect on dry matter yield per plant and a similar correlation coefficient. The indirect effect of number of nodules through plant height, led to a high total correlation for these two traits. Correlation coefficient for dry matter yield per plant and root mass was positive and highly significant (p<0.01). However, the di­rect effect of root mass on dry matter was low and negative. The total cor­relation for these two traits was medium intensive due to a strong indirect effect through plant height. An intensive indirect effect through plant height was also obtained for root length. Crude protein content signifi­cantly affected plant mass through plant height, but that effect was nega­tive causing significant (p<0.01) and negative total correlation for these two traits. A high coefficient of multiple determination (R²₁₂₃₄₅ + 0.901) was achieved. This means that the studied traits determine dry matter yield per plant to a great extent.

Key words: direct and indirect effects, nitrogen fixation parameters, multiple regression, red clover

 

 

Corresponding author: Zoran M. Lugić, Center for Forage Crops, Trg rasinskih partizana 50, 37000 Kruševac

tel. 037/441295, e-mail: institut@dreamyu.net

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 53-61

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.222; 633.15

Original scientific paper

 

B84 VS. B37 MAIZE HYBRID PERFORMANCE

Ivan HUSIĆ, Slobodan TRIFUNOVIĆ, Milorad ROŠULJ, and Milomir FILIPOVIĆ

 

Maize Research Institute, Zemun Polje, 11080 Belgrade-Zemun, Yugoslavia

 

 

Abstract

 

Husić I., S. Trifunović, M. Rošulj, and M. Filipović (2000): B84 vs. B37 maize hybrid performance. – Genetika, Vol. 32, No. 1, 53-61.

Efficiency of the half-sib recurrent selection (HSRS) method ap­plied to the Iowa Stiff Stalk Synthetic (BSSS) can be evaluated indirectly through the performance of hybrid combinations with inbreds developed from different cycles of selection of the mentioned population. Efficiency was estimated by comparison of the performance of hybrids derived by crossing inbreds B84 (BSSSC7) and B37 (BSSSC0) to 20 unrelated in­bred lines. The results obtained indicated that hybrids with inbred B84, on the average, overyielded hybrids with inbred B37 by 11.30%. In relation to the success of recurrent selection this increase amounts to 1.61% per cycle of selection. Although moisture determined in hybrids as an indi­cator of maturity was greater in hybrids with inbred B84 (0.90%^* on aver­age), the value of performance indices was 6.98% higher in the hybrids with inbred B84 showing that higher grain yield was not just a result of later maturity. Estimates of the coefficient (bx_i) in the linear regression equation were similar for both series of hybrids. The value of the rank correlation coefficient for grain yield (0.759^**) indicates the existence of similar differences between hybrid rank in both series. All the above mentioned points to B84 as an inbred line with better general or specific combining abilities than inbred line B37 indicating the effectiveness of HSRS applied to BSSS.

Key words: synthetic population, recurrent selection, inbred line, grain yield

 

 

Corresponding author: Ivan Husić, Maize Research Institute “Zemun Polje”, Slobodana Bajića 1, 11080 Belgrade-Zemun, Yugoslavia

Phone: (011) 3756-704 ext 609, Fax: (011) 3756 - 707

E-mail: ihusic@yahoo.com

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 63-69

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.222.7

Original scientific paper

 

CYTOGENETIC STUDY OF HELIANTHUS RIGIDUS AND ITS F₁ AND BC₁F₁ HYBRIDS WITH THE CULTIVATED SUNFLOWER, HELIANTHUS ANNUUS

Jovanka ATLAGIĆ

 

Institute of Field and Vegetable Crops, 21000 Novi Sad, Yugoslavia

 

 

Abstract

 

Atlagić, J. (2000): Cytogenetic study of Helianthus rigidus and its F₁ and BC₁F₁ hybrids with the cultivated sunflower, Helianthus an­nuus. – Genetika, Vol. 32, No. 1, 63-69.

Helianthus rigidus (Cass.) Desf. is a hexaploid sunflower which is a potential source of resistance to pathogens and high seed protein content. We have crossed many populations of the species with lines of the cultivated sunflower and obtained four F₁ hybrid combinations (1-9 plants in each) and five BC₁F₁ combinations (1-11 plants in each). Male sterility was registered in F₁ and BC₁F₁ interspecific hybrids. Pollen vi­ability was reduced in the progenies as compared with the parents (27.57-71.83% in F₁ and 1.95-21.70% in BC₁F₁). Meiosis proceeded normally in the H.rigidus populations under study. Numerous irregularities occurred at meiosis in the F₁ hybrids. At diakinesis, bivalents prevailed (88.29% of the meiocytes) but quadri-, uni- and hexavalents were also noted. Dislo­cated chromosomes and chromosome bridges were present in the other meiotic stages. All F₁ plants had 68 chromosomes each. In the case of BC₁F₁ hybrids, high percentages of uni-, quadri- and hexavalents oc­curred in meiocytes at diakinesis. BC₁F₁ plants differed in chromosome numbers. The registered meiotic irregularities in F₁ and BC₁F₁ interspeci­fic hybrids between H.rigidus and H.annuus are indicative of genetic di­vergence, i.e., of non-homology in the sunflower genome.

Key words: Cultivated sunflower, Helianthus rigidus, interspecific hy­bridization, meiosis, pollen viability

 

 

Corresponding author: Jovanka Atlagić, Institute of Field and Vegetable Crops, 21000 Novi Sad, Yugoslavia

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 71-79

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.3.633.16

Original scientific paper

 

GENETIC ANALYSIS OF GRAIN MASS PER PLANT IN BARLEY HYBRIDS

Milomirka MADIĆ, Miroslav KUBUROVIĆ, and Aleksandar S. PAUNOVIĆ

 

Faculty of Agronomy, 32000 Čačak, Yugoslavia

 

 

Abstract

 

Madić M., M. Kuburović, and A. S. Paunović (2000): Genetic analysis of grain mass per plant in barley hybrid. – Genetika, Vol. 32, No. 1, 71-79.

Four divergent genotypes of barley (HVW-247, Partizan, NS-293 and Japanska 15) were chosen with the aim of analysing the mode of inheritance and gene effects for grain mass per plant. By crossing selected genotypes, F₁ and F₂ generations were obtained. The mode of inheritance was assessed on the basis of the significance of the differences in mean values of the hybrids in relation to parental average. The method of Mather and Jinks (1971) was appled to establish the components of ge­netic variance and regression analysis. It was found that the variability of the trait under study was different, with the highest coefficient of varia­tion found in the crosses HVW-247 x NS-293 (60%) and the lowest in the cross NS-293 x JAP. 15 (32%). The mode of inheritance of grain mass per plant seemed to be different depending on the cross combination, with partial dominance, dominance and overdominance exhibited in F₁ and F₂ generations. The value of the additive component of variance (D) was lower than the values H₁ and H₂ in both generations, indicating a stronger effect of dominant genes on the inheritance of grain mass. This was con­firmed by the regression line intersecting the Wr axis below the point of origin. According to the way in which the points of the scatter diagram were distributed along the regression line, we concluded that dominant genes prevailed in the cultivar NS-293, whereas in the cultivar HVW-247 recessive genes prevailed.

Key words: barley, grain mass, inheritance, gene effects, regression analysis, F₁ and F₂ hybrids

 

 

Corresponding author: Milomirka Mladić, Faculty of Agronomy, 32000 Čačak, Yugoslavia

 

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Published in „GENETIKA“ Vol. 32, No.1 (2000), pp. 81-87

© 2000 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun

Serbia

 

 

UDC 575.822; 634.8

Original scientific paper

 

THE RELATION BETWEEN POLLEN FUNCTIONAL ABILITY AND FRUIT SET IN GRAPEVINE (VITIS SP.)

Momčilo MILUTINOVIĆ, Dragan NIKOLIĆ, Milica FOTIRIĆ, and Vera RAKONJAC

 

Faculty of Agriculture, 11080 Belgrade-Zemun, Yugoslavia

 

Abstract

 

 

Milutinović M., D. Nikolić, M. Fotirić, and V. Rakonjac (2000): The relation between pollen functional ability and fruit set in grapevine (Vitis sp.). – Genetika, Vol. 32, No. 1, 81-87.

In this paper, pollen functional ability of the cultivars Chardon­nay, Smederevka and SV 12-375, used as the male parent, for pollination of the cultivar Bagrina, as the female parent, was investigated. Free polli­nation of the cultivar Bagrina was observed as well as controlled pol-lination. Satisfactory pollen germination in vitro was established for the cultivars SV 12-375 (76.65%) and Smederevka (66.08%), while the cul-tivar Char­donnay had low pollen germination (20.88%). An association between pollen functional ability of the pollinizers and fruit set degree was deter­mined for the cultivar Bagrina. Cultivars SV 12-375 and Smederevka were suitable pollinizers for the cultivar Bagrina.

Key words: grapevine, cultivar, pollen functional ability, fruit set

 

 

Corresponding author: Momčilo Milutinović, Faculty of Agriculture, 11080 Belgrade-Zemun, Yugoslavia, tel.: 381-11-615315/223; fax: 381-11-193659

11080 Beograd-Zemun, Yugoslavia

 

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