The mass of 1000 grains and its inheritance parameters in different winter wheat genotypes
2002
Jankovic, S. (Institut za primenu nauke u poljoprivredi, Beograd (Yugoslavia)) | Protic, R. | Davidovic, M.
Five parent wheat varieties were crossed, three were used as mothers (Rescler, Car-3601 and Briocard) and two as fathers (Francuska and PKB-Prelivka) in order to create hybrids. A total of six sets was produced (3x2) for analysis: parent (P1 and P2) and generations of wheat hybrids (F1, BC1, BC2 and F2). Parent varieties, hybrids of F1 and F2 generations, hybrids of BC1 and BC2 backcross generations differed significantly and very significantly in the mass of 1000 grains. In the hybrids of F1 generation, partial dominance, superdominance and dominance are involved in inheritance of the mass of 1000 grains. In the hybrids of F2 generation intermediacy, partial dominance, dominance and superdominance are involved. For a mass of 1000 grains, it was estimated that the genetic variation is superior to the environmental one since relatively high heritability estimates were obtained, from 45.10% to 76.62%. The inheritance of the mass of 1000 grains is considerably affected by the additive component in some combinations, by dominant ones in others, while there are combinations in which the participation of additive and dominant components is nearly equal. The analysis of combining abilities showed that the PKB-Prelivka variety possesses the best general combining ability for the mass of 1000 grains.
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