【摘要】 以黄瓜(CucumisSativusL.)为材料,在四叶期至性别定型前,于叶面两次喷施乙烯利。由初花期起在叶面三次喷施三十烷醇。试验证明,100,150和200mg/l乙烯利处理能提高雌雄比值,而对照则很低。更多还原

【Abstract】 The material is Cucumis Sativus L.. Before its the fourleaf period and sex determination,We spray ethrel two tines on the surface of leaves.During the initial flowering phase,the myricyl alcohol is sprayed three times on the surface of leaves,The result proves that 100mg/l,150mg/l and 200mg/l ethrel all improve the ratio of female to male ,but the ratio in contrast group is very low .更多还原