The possibility of
using autogamous forms of alfalfa in the breeding of varieties with stable seed
productivity in the conditions of insufficient number of insect-pollinators has
been proved. Aim of present study was to evaluate the breeding value of alfalfa
inbred lines with different degree of autogamy for creation of synthetic
varieties. Inbred lines of the seventh- tenth generations were obtained with a
high level of autogamy (41-76%) and seed yield at the level of the variety –
standard. The splitting on the trait takes place among the descendants of the
inbred generations on the both of the autogamous and self-incompatible plants.
The invariable high-autogamous lines have been not obtained for 34 years of
research. The autogamy levels above 40.1%, had 55% of lines in the tenth
generation. Inbred lines have been created with forage yields at the
standard-grade level and high seed yields. Synthetic varieties with seed yields
of 0.300- 0.321 t/ha and different number of components (5-7) were formed on
the basis of lines with high combining ability effects. Autogamous forms which
were created do not lose the ability to cross pollination.
No comments:
Post a Comment