engleski

Adaptability of domestic and introduced soybean cultivars to different growing environments

In Western Croatia, only early maturing soybean cultivars can be grown. Thus, in breeding work as well as in introduction such genotypes are interesting. In this study, 16 soybean genotypes, nine domestic cultivars and breeding lines and seven foreign introductions were grown in a RCBD with five replications in three environments. Six of these genotypes belonged to the 0 group and 10 to the I maturity group. Morphological, agronomical and chemical data were recorded. Among the studied genotypes, nine had above average yield an below average yield coefficient of variation (CV). They might thus be considered as high yielders of good yield stability. Six of these were foreign introductions and three were of domestic origin. Two of the highest yielders belonged to the 0 maturity group. No relation was found either between the maturity group and yield or between the maturity group and yield CV. In oil and protein content, the studied genotypes did not differ significantly. Six of the nine best ranked genotypes were not used in commercial production in Western Croatia prior to the experiments and could be recommended to producers and all the nine cultivars might be valuable germplasm for breeding.

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