摘要
以厚皮甜瓜品种"丰雷"和薄皮甜瓜品种"白糖罐"2个不同基因型甜瓜为试材,在人工控制光、温环境下采用叶面喷施和浸种2种处理方法,研究比较了"增抗1号"低温逆境调控合剂对不同基因型甜瓜低温逆境的调控效果。结果表明:"增抗1号"叶面喷施和浸种处理的甜瓜功能叶片超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)活性增加,脂膜过氧化产物丙二醛(MDA)含量显著下降,叶片功能改善,其中,2种方法处理厚皮甜瓜叶片MDA含量分别较对照降低32.1%和28.0%,净光合速率分别较对照增加191.3%和65.8%;2种方法处理薄皮甜瓜叶片的MDA含量分别较对照降低53.3%和41.5%,净光合速率分别较对照增加150.5%和17.9%。表明,甜瓜苗期施用"增抗1号"可以显著提高甜瓜低温抗性水平,叶面喷施效果优于浸种处理。
Taking ＇ Fenglei＇ thick-skin muskmelon and ＇ Baitangguan＇ thin-skin muskmelon as materials, the regulation effects of ＇Zengkang No. 1＇ on different genotype melon under low temperature stess and under controlled environment were investigated. The results showed that with the treatments of foliar-spraying and seed-soaking of ＇ Zengkang No. 1 ＇, activities of superoxide dismutase（SOD）,catalase（CXF）and peroxidase（POD）of muskmelon functional leaves increased, while contents of MDA of these two genotypes decreased significantly, which resulted in the improvement of leaf functions. With the two treatments,MDA contents of thick-skin muskmelon leaves decreased by 32. 1% and 28. 0% than the contrast and net photosynthetic rates increased by 191.3% and 65. 8%, respectively. MDA contents of thin-skin nmskmelon leaves decreased by 53.3% and 41.5% and net photosynthetic rates increased by 150. 5% and 17.9%, respectively. So ＇ Zengkang No. 1＇ plant growth regulator improved the low temperature resistance of muskmelon plants significantly. Moreover,method of foliar-spraying was superior to seed-soaking.
出处
《北方园艺》
CAS
北大核心
2013年第21期42-44,共3页
Northern Horticulture
基金
山东省高等学校科技计划资助项目(J10LC54)
潍坊科技学院自然科学重大专项资助项目(W13K002)
关键词
甜瓜
“增抗1号”
逆境调控合剂
低温逆境
低温抗性
muskmelon
＇ Zengkang No. 1 ＇
plant growth regulator
low temperature stress
low temperature resistance
