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中国农科院郑州果树所于1989～1990连续两年应用PP333在西瓜育苗上进行了防止“高脚苗”的试验。试验结果表明:在郑杂5号西瓜幼苗子叶平展时,喷浓度为10Oppm的P P 333,可抑制下胚轴和第一真叶柄的加长生长,从而
Chinese Academy of Agricultural Sciences Zhengzhou fruit trees in 1989 to 1990 for two consecutive years of application of PP333 in watermelon nursery on the prevention of “high-footed” test. The experimental results showed that P 333 333 sprayed at a concentration of 10Oppm could inhibit the prolonged growth of hypocotyls and the first true petiole when the cotyledons of Zhengza No.5 were planted.