氯吡脲对西瓜重要农艺性状的影响及安全性评价

为了探明西瓜生产中氯吡脲使用的关键控制点,以'中科1号'和'中科6号'2个西瓜品种为试材,采用7个不同剂量的氯吡脲在开花当天涂抹瓜胎,分析西瓜坐果率、裂瓜率、番茄红素和糖含量等重要农艺性状,并评价氯吡脲的使用剂量及其安全性.结果表明,氯吡脲施药剂量与西瓜坐果率和裂瓜率呈显著正相关,西瓜中番茄红素含量与葡萄糖和果糖含量呈...

Effect of forchlorfenuron on important agronomic traits of watermelon and safety evaluation

In order to identify the key control points for the use of forchlorfenuron in watermelon production.Two watermelon varieties‘ZK-1’and‘ZK-6’were used as test materials,and seven different doses of forchlorfenuron were applied to watermelon ovary on the day of flowering.The fruit setting rate,split rate,lycopene,sugar and other important agronomic traits of watermelon were analyzed,and the dosage and safety of forchlorfenuron were evaluated.Results showed that the dosage of forchlorfenuron was significantly positively correlated with the fruit setting rate and splitting rate of watermelon.The lycopene in watermelon was significantly positively correlated with glucose and fructose.Appropriate dosage of forchlorfenuron could increase the fruit setting rate of watermelon and the content of lycopene and glucose.The optimal dosage of forchlorfenuron for‘ZK-1’and‘ZK-6’watermelon were 5 mg·kg^-1.The residue of forchlorfenuron was not detected in the mature fruits of the two watermelon varieties,which did not affect safe consumption.The research results could provide technical support for the rational use of forchlorfenuron in watermelon production and a scientific basis for guiding consumption.