Position: Home > Articles > Effects of Exogenous Hormone and Penicillin on the Cold Resistance of Watermelon Seedlings
Journal of Anhui Agricultural Sciences
2011,39
(27)
16523-16524
外源激素和青霉素处理对西瓜幼苗抗寒性的影响
作 者：
卢明;向承勇
单 位：
广西农业职业技术学院园艺工程系;南充市农业科学院
关键词：
青霉素外源激素;西瓜幼苗;抗寒性;POD;CAT
摘 要：
[目的]筛选可提高西瓜幼苗抗寒性的外源激素的种类及其有效浓度。[方法]以西瓜幼苗为材料,用不同外源物质处理幼苗,测定其主要的生长指标、冷害指标和保护性酶的活性,评价各处理的抗寒性。[结果]ABA、BA和青霉素能提高西瓜幼苗的抗寒性,以25mg/L ABA处理体效果最佳,50 mg/L ABA次之;1 000 mg/L青霉素和25 mg/L BA也有一定的效果;而乙烯利降低西瓜幼苗的抗寒性。[结论]用ABA处理可以促进西瓜幼苗的生长,同时能提高西瓜幼苗保护性酶的活性,可作为提高西瓜幼苗抗寒性的有效手段。
译 名：
Effects of Exogenous Hormone and Penicillin on the Cold Resistance of Watermelon Seedlings
作 者：
LU Ming et al(Horticulture Department of Guangxi Agriculture Vocational and Technical College,Nanning,Guangxi 530007)
关键词：
Penicillin exogenous hormone;Watermelon seedlings;Cold resistance;POD;CAT
摘 要：
[Objective] The aim was to screen exogenous hormone species and effective concentration for improving cold resistance of watermelon seedlings.[Method] With watermelon seedlings as materials,dealing with different foreign substances seedlings,the main growth indicators,chilling injury index and the activity of protective enzymes were determined,and cold hardiness of each treatment was evaluated.[Result] ABA,BA and penicillin can improve the cold tolerance of watermelon seedlings,25 mg/L ABA treatment as the best,50 mg/L ABA treatment followed;1 000 mg/L penicillin and 25 mg/L BA also have some effect;while ethephon reduced the cold tolerance of watermelon seedlings.[Conclusion] Treatment with ABA can promote the growth of watermelon seedlings,at the same time can improve protective enzymes activity of watermelon seedlings,which could be used as an effective means of improving seedling cold tolerance.
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