The Effect of Yield of Polingenesis Rice And Photosynthetic Products′ Distirbution of the Flag Leaf by the Different of Phytohormore Function

doi:10.3969/j.issn.1000-7091.2012.05.022

Abstract

Abstract: The photosynthetic products′ distribution of the flag leaf at full heading stage of the ratooning rice and the different of phytohormone was studied by 14C trace technique.The results showed that：Retention rate of the photosynthate in flag leaves was 6%-26%,72%-92% of photosynthates from flag leaf was distributed to panicle at full heading stage,distribution of photosynthates the flag leafthe flag leaf sheathesstems and sheatheselse leaves.Low Retention rate of the photosynthate in flag leave was good for yield of rice.The phytohormone treatment promote the photosynthates distribution rate in panicle,and increase the yield of palingenesis rice.These results showed that choosing those varieties with more panicles and the photosynthetic capacities of the flag leaf sheathes after tassel of main crop would be benefit to gain higher yield.

Key words: Palingenesis rice, Photosynthate distribution 14C-isotope, Hormone regulation

CLC Number:

S511

HUANG Xin-jie, TU Nai-mei, ZHOU Juan, YI Zhen-xie, LI Yan-fang, WAN Ding-hai. The Effect of Yield of Polingenesis Rice And Photosynthetic Products′ Distirbution of the Flag Leaf by the Different of Phytohormore Function[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(5): 114-118. doi: 10.3969/j.issn.1000-7091.2012.05.022.

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