[Ontogenetical inheritance]
2005
Babitsky, A.
The correlation between yielding capacity of wheat seeds and their weight, protein content and acid phosphatase activity was studied. Experimental procedure: In the first year a modification of the yielding ability of the seeds was obtained by their reproduction on maternal plants under different agroecological conditions: 13 variants of mineral nutrition and 3 variants of soil moisture regimes. The modified seeds were tested for their yielding ability in the folowing year. The yields obtained from maternal plants were marked as direct action of the agroecological factors. The yields obtained from seed testing were marked as residual action of the agroecological factors. As the result of this experiment no correlations were found between yielding ability and seed weight, protein content and acid phosphatase activity. It is evident that physical, physiological and biochemical characteristics of the seeds reflect their trophic correlations with maternal plant and are related to the yield level of maternal plant under direct action of the agroecological factors. This seed traits can in no way characterize their yielding ability which must be realized under residual action of the environmental factors. Thus, the yielding ability of wheat seeds are determined by ontogenetical inheritance.
显示更多 [+] 显示较少 [-]