首页|期刊导航|中国农业科学（英文版）|Photosynthesis, Carbohydrate Storage and Remobilization During Grain Filling as Affected by Sulphur Application in Winter Wheat
中国农业科学（英文版）2005，Vol.4Issue(7)：507-513,7.
Photosynthesis, Carbohydrate Storage and Remobilization During Grain Filling as Affected by Sulphur Application in Winter Wheat
Photosynthesis, Carbohydrate Storage and Remobilization During Grain Filling as Affected by Sulphur Application in Winter Wheat
摘要
Abstract
Photosynthesis and carbohydrate storage and remobilization was investigated during grain filling of winter wheat (Triticum aestivum L., cv. Lumai 22) in sulphur application experiments where the available sulphur (S) content in the soil of 0-20 cm soil layer was 5.84 mg kg-1. Two levels of S were applied as S0 (0 kg S ha-1) and S1 (67.5 kg S ha-1). The results showed that net photosynthetic rate of flag leaf of S1 treatment was significantly higher than S0 treatment, and it increased gradually from anthesis to 35 DAA. Sucrose-phosphate synthase (SPS) activity and sucrose content of S1 treatment were significantly higher than those of S0 treatment. The contents of total soluble sugar, sucrose, fructose, glucose, DP3 and DP ≥ 4fructan in stem and sheath of S1 treatment were significantly higher than those of S0 treatment also. The amount of total soluble sugar and fructans remobilization from stem and sheath and the starch accumulating rate in grain of S1 treatment was significantly higher than those of S0 treatment. It is suggested that sulphur application increase photosynthate remobilization from stem and sheath to grain at later filling stage.关键词
Winter wheat/Sulphur/Photosynthesis/Carbohydrate storage/Starch synthesisKey words
Winter wheat/Sulphur/Photosynthesis/Carbohydrate storage/Starch synthesis分类
农业科技引用本文复制引用
WANG Dong,YU Zhen-wen,XU Zhen-zhu..Photosynthesis, Carbohydrate Storage and Remobilization During Grain Filling as Affected by Sulphur Application in Winter Wheat[J].中国农业科学（英文版）,2005,4(7):507-513,7.基金项目
We acknowledge the financial support of the National Natural Science Foundation of China (30471026) and the National Key Technologies R&D Program in Tenth Five-Year Plan by the Minstry of Science and Technology, China (2002BA516A12). （30471026）
