Analysis of variability of yield component traits in F2 generation of soybean (Glycine max L. Merrill.) diallel crosses

Jerzy Nawracała

kgihr@up.poznan.pl
Katedra Genetyki i Hodowli Roślin, Akademia Rolnicza im. A. Cieszkowskiego w Poznaniu (Poland)

Tadeusz Łuczkiewicz


Katedra Genetyki i Hodowli Roślin, Akademia Rolnicza im. A. Cieszkowskiego w Poznaniu (Poland)

Abstract

Diallel crosses (Griffing's method 2) between five soybean genotypes were carried out. Field experiment (in three replications) was performed with F2 generation. Variability of five yield component traits: number of pods per plant, number of seeds per plant, number of seeds per pod, 1000 seeds weight, seed weight per plant were analyzed. The highest variability coefficient for parental genotypes was obtained for seed weight per plant (V = 57,8%) and in hybrids for number of seeds per plant (V = 77,2%). Variability of analyzed hybrid traits (expressed by variability coefficient and range) was much higher than variability of traits in parents. The highest increase of mean trait value and variability of trait was observed in progeny of crosses with line 2349. In F2 progenies of all crosses single plants appeared to be better than the better of the parents. The greatest numbers of these plants were obtained in progeny of crosses Progres × line16 and line 2349 × line 16. General combining ability (GCA) significantly affected the number of seeds per plant (line 2349), number of seeds per pod (Progres and line 16) and 1000 seeds weight (lines 16, 2336 and 2349. Positive, significant effect of specific combining ability (SCA) was found only in cross combination 2336 × 2349 for number of seeds per plant.


Keywords:

diallel crosses, soybean, transgression, variability

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Published
2003-06-30

Cited by

Nawracała, J. and Łuczkiewicz, T. (2003) “Analysis of variability of yield component traits in F2 generation of soybean (Glycine max L. Merrill.) diallel crosses”, Bulletin of Plant Breeding and Acclimatization Institute, (226/227), pp. 503–510. doi: 10.37317/biul-2003-0178.

Authors

Jerzy Nawracała 
kgihr@up.poznan.pl
Katedra Genetyki i Hodowli Roślin, Akademia Rolnicza im. A. Cieszkowskiego w Poznaniu Poland

Authors

Tadeusz Łuczkiewicz 

Katedra Genetyki i Hodowli Roślin, Akademia Rolnicza im. A. Cieszkowskiego w Poznaniu Poland

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Copyright (c) 2003 Jerzy Nawracała, Tadeusz Łuczkiewicz

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