| Leaf senescence of different buckwheat genotypes at later growing stage |
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| DOI：10.7606/j.issn.1000-7601.2008.05.06 |
| Key Words: buckwheat leaf senescence protective enzyme activity |
| Author Name | Affiliation | | GONG Qiaoling | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China | | FENG Baili | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China | | GAO Jinfeng | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China | | GAO Xiaoli | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China | | WANG Pengke | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China | | CHAI Yan | Research Center for Minor Cereals and Beans, Northwest A & F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Two different buckwheat genotypes were used to study characteristics of the leaf senescence at flower-set caulis nodes from flowering to maturing under field conditions. A significant difference of senescence progresses between two genotypes was showed as: compared to Xinong9920 (Common buckwheat), Xinong9976 (Tartary buckwheat) has a slower reduction in the content of chlorophyll and soluble protein, and also in the activities of SOD and CAT, while a slower increasing MDA's content; These variations in leaf result in prolonging the function durations, delaying senescence，and contribute to accumulation of photosynthetic products. |
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