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1979～1983年连续5年对17种元帅系苹果,每米主枝上短果枝的量,和由每一短枝开花的短果枝量与主枝角度进行了调查和测量,发现短枝型每米短果枝的量和由每一短果枝开花的量都比乔化型多。有些品系开花的年变异
From 1979 to 1983, for five consecutive years, the amount of short fruit branches on 17 main branches of apples and maize per meter was investigated and measured from the short branches and main branches of each short branch. It was found that each of the short branches The quantity of short rice branches and the amount of flowering per short fruit branch are much more than that of Qiao. Some strains flowering annual variation