首页|期刊导航|中国农业科学（英文版）|Effect of Different Irrigation Patterns on Transportation and Allocation of Carbohydrate During Grain Filling of Rice
中国农业科学（英文版）2005，Vol.4Issue(3)：181-186,6.
Effect of Different Irrigation Patterns on Transportation and Allocation of Carbohydrate During Grain Filling of Rice
Effect of Different Irrigation Patterns on Transportation and Allocation of Carbohydrate During Grain Filling of Rice
摘要
Abstract
Using intersubspecific hybrid rice Xieyou 9308 and Liangyou Peijiu as the tested materials, the effects of different irrigation patterns on transportation and allocation of carbohydrate during grain filling stage was observed by the design with three level of soil water content in irrigated field. The results showed that in the conventional flooding and the alternate dry-watering cultivations, the exported rate of stored carbohydrate from stem and photophate from the leaves were 60 and 90 % respectively. The exported rate of carbohydrate was decreased significantly (P＜0.01) in the non-flooding cultivation. There was no significant difference between the conventional flooding and dry-wet alternation treatments in term of the exported rate of carbohydrate. The filling grains were the major sinks 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 % from leaf sheath and 20 %from leaves photophate. Water stress leaded much decrease in absorbing ability for inferior grains, which might be one of the main causes for low seed-settling rate in non-flooding cultivation.关键词
Rice/Grain filling stage/Irrigation mode/Grain/PhotophateKey words
Rice/Grain filling stage/Irrigation mode/Grain/Photophate引用本文复制引用
CHEN Hai-sheng,TAO Long-xing,WANG Xi,HUANG Xiao-lin,TAN Hui-juan,CHENG Shi-hua,MIN Shao-kai..Effect of Different Irrigation Patterns on Transportation and Allocation of Carbohydrate During Grain Filling of Rice[J].中国农业科学（英文版）,2005,4(3):181-186,6.基金项目
This work was sponsored by the Span Plan of the Ministry of Agriculture of China (MOA)(2003-01), the Special Key Project for Planting Pattern Reform of MOA of China (2003-01-02A, and Zhejiang Provincial Project,China (2004C32016). （MOA）
