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Regulation Effects of ‘Zengkang No.1’ on Different Genotype Melon Under Low Temperature Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年21期
Page:
42-44
Research Field:
Publishing date:

Info

Title:
Regulation Effects of ‘Zengkang No.1’ on Different Genotype Melon Under Low Temperature Stress
Author(s):
MIAO Jin-shan; SUN Hu; LI Yun-ling; GUO Ying-jian
Institute of Horticultural Science and Technology，Weifang University of Science and Technology，Shouguang，Shandong 262700
Keywords:
muskmelon; ‘Zengkang No.1’; plant growth regulator; low temperature stress; low temperature resistance
PACS:
S 652
DOI:
-
Abstract:
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(CAT)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 muskmelon 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.

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Last Update: 2014-08-26