General varietal ability as a selection criterion for selection of parental components for synthetic populations in lucerne
1992
Chloupek, O. (Vysoka Skola Zemedelska, Brno (CSFR))
Diallel crosses of eight clones of lucerne were evaluated for above-ground weight of plants in hydroponics in a glasshouse experiment in 33 cuts, survival after 33 cuts and for number of seeds in individual plants (average of three years) in a field experiment. Effects of general combining ability (GCA) were calculated and compared with the effects of general varietal ability (GVA). Close relationships were found between the effects of GCA and GVA in synthetics consisting of 5 to 8 parents (the number was changed by gradual excluding of clones with the lowest effects of GCA). The use of GVA would precise the selection of parental components significantly only in the survival of some of the 5-8 parental components. The effects of GCA were correlated to the effects of inbreeding only in yield but not in fertility and survival.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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