GENETIKA, Vol. 34, No.1 (2002)
S.P.SINGH and Meenakshi SINGH
GENETICS OF TEST WEIGHT AND OIL CONTENT IN CUPHEA PROCUMBENS [Abstract] [Full text]
Mirjana ŠIJAČIĆ-NIKOLIĆ and Vasilije ISAJEV
MODEL OF EXPERIMENTAL CLONAL SEED ORCHARD FOR THE PRODUCTION OF SERBIAN SPRUCE (PICEA OMORIKA /PANČ./PURKYNE) INTRASPECIFIC HYBRIDS [Abstract] [Full text]
Vladimir LAZAREV
INTERACTIONS OF RECOMBINED MYCELIA OF THE FUNGUS FOMITOPSIS PINICOLA (SOW. EX FR.) KARST. ON PDA MEDIUM [Abstract] [Full text]
Goran BEKAVAC, Milisav STOJAKOVIĆ, Mile IVANOVIĆ, Đorđe JOCKOVIĆ, Nenad VASIĆ, Božana PURAR, Jan BOĆANSKI, and Aleksandra NASTASIĆ
RELATIONSHIPS OF STAY GREEN TRAIT IN MAIZE [Abstract] [Full text]
Published in „GENETIKA“ Vol. 34, No.1 (2002), pp. 1-10
© 2002 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
UDC 575
Original scientific paper
GENETICS OF TEST WEIGHT AND OIL CONTENT IN CUPHEA PROCUMBENS
S.P.SINGH and Meenakshi SINGH
Division of Genetics and Plant Breeding, National Botanical Research Institute (CSIR), Lucknow - 226001, India
Abstract
Singh S. P. and Meenakshi Singh ( 2002): Genetics of test weight and oil content in Cuphea procumbens. – Genetika, Vol. 34, No. 1, 1-10.
Cuphea is an important genus of medium chain triglycerides and Cuphea procumbens is rich in capric acid (C10:0), which is main plant source of petrochemicals. A detailed study was conducted on different genetic systems involved in the inheritance of test weight and oil content in Cuphea procumbens following 6 parents diallel. The high value of dominance (H1) and (δ2s) and over-dominance obtained by (H1/D)0.5 and graphical analysis indicated the prevalence of non-additive gene action for test weight and oil content. Parent ‘NBC-30’ in F1 and ‘NBC-03’ in F2 for test weight and 'NBC-30' for both the generation for oil content were best combiners. The crosses ‘NBC-12’ x ‘NBC-30’, ‘NBC-01’ x ‘NBC-03’ and ‘NBC-12’ x ‘NBC-20’ for test weight and ‘NBC 01’ x ‘NBC-03’ and ‘NBC-25’ x ‘NBC-30’ for oil content were best specific cross combinations in both the generations. The genetic combination of these crosses were additive x additive, additive x dominance and dominance x dominance type interaction due to involvement of high x high, high x low and low x low combiners. A breeding plan to develop bold seeded genotypes to increase oil content has been discussed.
Key words: Cuphea procumbens, test weight, oil content, genetics
Corresponding author: S.P.Singh, National Botanical Research Institute (CSIR), Rana Pratap Marg, P.B. No. 436, Lucknow - 226001, India
email: directornbri@satyam.net.in
Published in „GENETIKA“ Vol. 34, No.1 (2002), pp. 11-19
© 2002 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
UDC 575
Original scientific paper
MODEL OF EXPERIMENTAL CLONAL SEED ORCHARD FOR THE PRODUCTION OF SERBIAN SPRUCE (PICEA OMORIKA /PANČ./PURKYNE) INTRASPECIFIC HYBRIDS
Mirjana ŠIJAČIĆ-NIKOLIĆ and Vasilije ISAJEV
Faculty of Forestry, 11030 Belgrade, Yugoslavia
Abstract
Šijačić-Nikolić M. and V. Isajev (2002): Model of experimental seed orchard for the production of serbian spruce (Picea omorika /Panč./Purkyne) intraspecific hybrids. – Genetika, Vol. 34, No. 1, 11-19.
The presented model for the establishment of an experimental clonal seed orchard of Serbian spruce was designed based on the results of the analysis and assessment of the genetic potential of Serbian spruce seedling seed orchard at Godovik. Based on the results of the analyses, eight superior half-sib lines of Serbian spruce were selected, of which 24 genotypes were selected. Their hybridisation, by the model of incomplete diallel cross, resulted in 21 combinations at the level of half-sib lines, i.e. 48 combinations at the level of parent genotypes. The applied study methods identified the potentially valuable genotypes-cone producers i.e. pollinators, which will be fixed by cloning in the seed orchard of the second generation for the production of the promising hybrids.
Key words: Serbian spruce, selection, hybridisation, clonal seed orchard
Corresponding author: Vasilije Isajev, Faculty of forestry, 11030 Belgrade, Yugoslavia
Published in „GENETIKA“ Vol. 34, No.1 (2002), pp. 21-32
© 2002 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
UDC 575
Original scientific paper
INTERACTIONS OF RECOMBINED MYCELIA OF THE FUNGUS FOMITOPSIS PINICOLA (SOW. EX FR.) KARST. ON PDA MEDIUM
Vladimir LAZAREV
JP “Srbijašume” – Institute of Forestry, Belgrade, Yugoslavia
Abstract
Lazarev, V., (2002): Interactions of recombined mycelia of the fungus Fomitopsis pinicola (sow. Ex fr.) Karst. on PDA medium.- Genetika, Vol. 34, No. 1, 21-32.
The interaction of cultures from the recombined mycelia of the fungus Fomitopsis pinicola (Sow. ex Fr.) Karst. was studied on PDA medium. The cultures were isolated from different carpophores and from different segments of the same carpophore originating from a felled beech tree. The interactions show that recombined mycelia of this species can be divided into numerous incompatible physiological “races” or “pathotypes” distinguished also by morphological features of the mycelia.
Key words: Fomitopsis pinicola, recombined mycelia, zone of interaction, variety line, pathotype
Corresponding author: V.Lazarev, JP “Srbijašume”, 11000 Belgrade, Yugoslavia
Published in „GENETIKA“ Vol. 34, No.1 (2002), pp. 33-40
© 2002 Serbian Genetics Society
S. Bajića 1, 11185 Belgrade-Zemun
Serbia
UDC 575
Original scientific paper
RELATIONSHIPS OF STAY GREEN TRAIT IN MAIZE
Goran BEKAVAC, Milisav STOJAKOVIĆ, Mile IVANOVIĆ, Đorđe JOCKOVIĆ, Nenad VASIĆ, Božana PURAR, Jan BOĆANSKI, and Aleksandra NASTASIĆ
Research Institute of Field and Vegetable Crops, M. Gorkog 30, 21000 Novi Sad, Yugoslavia
Abstract
Bekavac G., M. Stojaković, N. Vasić, B. Purar, J. Boćanski, A. Nastasić, and R. Popov (2002): Relationships of stay green trait in maize. – Genetika, Vol. 34, No. 1, 33-40.
Genetic variation for stay green character has been exploited in maize improvement mainly in the light of selecting high yielding rather then typical stay green genotypes. Stay green is an indicator of good plant health later in the season, reduced progressive senescence, tolerance to post-flowering drought and stalk lodging, what ensure superiority of stay green genotypes in comparison to non-stay green ones, especially in drought conditions. The objective of the study was to examine relationship of stay green trait with some vegetative characters in two genetically broad based maize populations. The most consistent correlations with stay green were established for leaf and stalk water content, which has been confirmed by path-coefficient analysis.
Key words: maize, stay-green, correlation, path analysis
Corresponding author: Goran Bekavac, Research Institute of Field and Vegetable Crops, M. Gorkog 30, 21000 Novi Sad, Yugoslavia.
Phone: +381 21 4898 251; Fax: +381 21 4898 300; Email: gbekavac@ifvcns.ns.ac.yu