摘要
通过不同外源物质处理甜瓜幼苗,并进行低温胁迫处理,测定不同处理后甜瓜幼苗叶片的POD、CAT酶活性和根系外渗液的EC值,研究其对甜瓜幼苗抗寒性的影响,结果表明:6-BA和水杨酸有助于提高甜瓜幼苗的抗寒性,而以6-BA效果最好,水杨酸次之;比久、矮壮素、青霉素对甜瓜幼苗抗寒性有一定的提高作用;氯化钙处理POD、CAT酶活性与对照差异不大,但对细胞膜有较好的保护效果;萘乙酸会导致甜瓜幼苗抗寒性下降。
The cold resistance of muskmelon seedlings were studied by a procedure of using different exogenous substances to treat seedlings,undertaking cold stress,measuring the enzyme activities of POD,CAT and EC value of root exudate.The results showed that,6-BA had the most best effect on improving cold resistance of muskmelon seedlings and the secondary one was salicylic acid;daminozide,chlormequat and penicillin could improve cold resistance in some degree;CaCl2 had little difference with the control in POD,CAT activities,but had better protection effect for cell membrane,and NAA could cause the decrease of cold resistance of muskmelon seedlings.
出处
《福建农业科技》
2012年第3期122-123,共2页
Fujian Agricultural Science and Technology
基金
广西壮族自治区教育厅科研项目(200911LX547)
