Combining ability analysis of quality characters for parents of hybrid in Brassica napus L.

摘要

Twelve combinations have been done with incomplete diallel cross design, which were crossed by three male sterility lines and four restoring lines. The combining ability of F1 ten characters (glucosinolate, protein, oil, palmitic, stearic, oleic, linoleic,linolenic, eicosenoic, erucic acid) is analyzed. Results showed: general combiming ability effect of A-lines were different significantly at 0.05 or 0.01 level on glucosinolate, palmitic, stearic, oleic, linolenic, eicosenoic acid General ability effect of Clines are different significantly at 0.05 or 0.01 level on glucosinolate, protein, oil, stearic, oleic, linolenic, eicosenoic acid. Specific combining ability effect of A-line and C-line have marked influence to F1 three characters only, they are content of protein, oil and stearic acid. General combining ability effect of A-lines and C-lines has great influence to F1 most quality characters. The quality characters of parents must be improved in breeding. Tests showed that the combination with A9 and P27-1 has higher content of oil, oleic acid, protein and lower content of erucic acid, glucosinolate, linolenic acid.