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Effects of Irrigation patterns on Carbohydrate Allocation of Hybrid Rice

文献类型: 会议论文

第一作者: Tao Longxing

作者: Tao Longxing 1 ; Chen Haisheng; Huang Xiaolin; Tan Huijuan; Cheng Shihua; Min Shaokai; Wang Xi; Jiangxi Association for Science & Technology(CN);;

作者机构: 1.State Key Laboratory of Rice Biology/China National Rice Research Institute, Hangzhou 310006

关键词: hybrid rice;grain filling stage;irrigation mode;photophate;carbohydrate allocation

会议名称: Industrialization of Hybrid Rice

主办单位:

页码: 309-318

摘要: Intersubspecific hybrid rice Xeiyou 9308 and Liang youpeijiu were used as the test materials, three level of soil water content were designed during grain filling in irrigated field to observe their effects on translocation and allocation for carbohydrate. The results showed that in conventional flooding or non - flooding cultivation, the exported rates of stored carbohydrate from stem and photophate from the leaves were 60% and 90% respectively. The exported rate of carbohydrate was decreased significantly in the non - flooding cultivation. The filling grains were the major sink for carbohydrate storage during grain filling stage. Grains received nearly 50% of stored carbohydrate from leaf sheath and 80% of photophate from leaves. At the non - flooding. Condition the absorbing rates of grains were significantly decreased by 10% and 20% from leaf sheath and from leaves photophate, respectively. Dry stress caused much decrease in absorbing a-bility for inferior grains.

分类号: S511

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