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第1期早熟和四倍体荀萄胚培养的研究“·一··“一·一·”··~·””一余旦华张磊薛菊萍赵改荣周秀琴(l)2,4一滴丙酸对苹果树采前落果的控制与果实贮藏的效应······················“·“························…… ....
The first phase of premature and tetraploid X-ras embryo culture research “· · · · · · · · · · · · ·” "Yu Yuhua Zhang Lei Xue Juping Zhao change Rong Zhou Xiuqin (l) 2,4 a drop of propionic acid pairs Control of apple trees before harvest and fruits storage effect ····················· ...