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为了说明应用乙烯利(2—chloroe fhy-lphosphonic acid)对日本柿(DiospyrosKaki Linn·f·cv·Fuyu)花或果实疏除的机制,于1975年研究了乙烯利对它们离层形成的影响。对50年左右的成年树在花期(开花前10天左右)或幼果期(在盛花后18天)用75或150ppm 的乙烯利溶液进行喷雾。
In order to illustrate the mechanism of the application of 2-chloroefhy-lphosphonic acid to the thinning of flowers or fruits of Japanese persimmon (DiospyrosKaki Linn.f.v. Fuyu), the effect of ethephon on their delamination was studied in 1975. Adult trees aged about 50 years are sprayed with 75 or 150 ppm ethephon solution at flowering (about 10 days before flowering) or in young fruits (18 days after full flowering).