植物生长调节剂在果菜类、瓜类、豆类蔬菜上普遍施用,它们对防治落花、落果诱导雌花形成、防徒长等方面起到重要作用,现分别叙述几种调节剂如下:1、2.4-D:主要用于防止落花、落果,加速生长。首先根据2.4-D 的类型及说明将药液配好,并加入少量红或蓝色染料作标记,然后用毛笔蘸少量药液涂抹花柄的离层处或柱头上。一朵一朵的涂抹,严格控制浓度,不能 Plant growth regulators in fruits and vegetables, melons, beans, vegetables are generally applied, they are on the prevention and treatment of falling flowers, fruit-induced female flower formation, anti-leggy and so play an important role, are described below are the following several regulators: 1,2.4- D: Mainly used to prevent falling, fruit drop, accelerate growth. First, according to 2.4-D type and description of the liquid with a good, and add a small amount of red or blue dye for marking, and then use a brush dipped in a small amount of liquid coating the stem of the detachment or stigma. A smear, strict control of concentration, can not