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1986年,商水县农场李法孝在责任田里种了三亩西瓜,品种为郑州三号和汴梁一号。由于他使用赤霉素(920)涂抹瓜柄,收获的西瓜较未处理的平均增重2～3成,含糖量提高30～40％。具体作法如下 (1)赤霉素溶液配制,用酒精或白酒少许先将固体赤霉素溶解(酒精的用量经完全将赤霉素化开为宜),然后加清水稀释至20～30ppm的溶液备用。 (2)涂抹时间,在西瓜雌花盛开时涂第一次,西瓜长至核桃大小时涂第二次,西瓜长至半公斤重时涂第三次。 (3)涂抹方法:在晴天待露水干后,用毛笔蘸赤霉素溶液,顺瓜毛生长的方向轻轻涂抹雌花柄。
In 1986, Li Fa-xiao, Shangshui County farms, planted three acres of watermelon in the responsible farmland, with varieties of Zhengzhou No. 3 and Lianliang No. 1. Because he applied gibberellin (920), the harvested watermelon grew 2-3% more than the untreated watermelon and the sugar content increased by 30-40%. The specific practices are as follows (1) gibberellin solution preparation, with a little alcohol or liquor first solid gibberellin dissolved (the amount of alcohol completely gibberellin is appropriate), and then add water diluted to 20 ~ 30ppm solution spare. (2) smear time, the first time in the watermelon female flowers in full bloom, the watermelon grows to the second walnut size, the watermelon grows to half a kilogram weight when the third time coating. (3) smear method: in the sunny days to be dew dry brush with gibberellin solution, followed by the direction of growth of melon hair gently daub the female flower stalk.