Analysis on Yield Characteristics of Male Sterile Lines of Alfalfa

Eight Male Sterile Lines of Afalfal and three afalfal materials with better characters were get by Backcrossing that used as female and male parent,and carried hybrid seed production test in open pollination and artificial pollination.The results showed:(1) Megachile pollination could Effectively improve male sterile lines of alfalfa seed yield(33.66%),and the per plant seed yield of No.2 was the highest(3.16 g/plant).(2)Correlation and regression analysis indicated that branches of per plant was the most important factor which influenced the male sterile lines seed yield of alfalfa,and the setting percentage was the secondly.