Articles

PHOTOSYNTHETIC AND BIOCHEMICAL CHANGES OF MELON LEAVES DURING SENESCENCE

Article number
871_45
Pages
329 – 336
Language
English
Abstract
Shortage of assimilate supply due to leaf senescence often limits melon yield and quality potential especially for late mature cultivars.
We determined the net photosynthetic rates (Pn) and antioxidative enzyme activities in a field experiment with three cultivars to understand the physiological process in leaf senescence under natural condition.
The results showed that the Pn decreased rapidly during senescence of melon leaves, along with lowered chlorophyll and soluble protein contents, lowered activities of SOD, CAT and APX, but gradually increased POD activity and MDA content.
Difference existed in these proprieties among melon cultivars.

Publication
Authors
Nianlai Chen, Ruiyong Tang, Yuxin Zhang, Cuixiang An, Huijuan Gao
Keywords
leaf senescence, photosynthesis, chlorophyll, MDA, antioxidative enzymes
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