Using 12 F_1 made by crossing 2A-lines(male sterile line with T.timopheevii cytoplasm)with 6 R-lines(restoration line)and their parents,the heterosis and combining ability of quality and other agronomic cha-racteristics were studied for two years,with the purpose to providetheoretical basis for the selection of parental material in hybrid wheatprogram.The result was as follows:(1)Heterosis over mid-parents was the highest in grain protein con-tent per mu,grain yield per mu and grain wt.per spike ranking the...
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