ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (5): 133-137. doi: 10.7668/hbnxb.2013.05.024

Special Issue: Rice Drought and water saving

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Young Panicle Formation Stage after Water Stress on the Production and Transport of Photosynthate in Rice

LI Shu-xing1,2, GUO Hui1,2, LI Min1,2, SUN Yong-jian1, FENG Jun1   

  1. 1 Rice Institute, Sichuan Agricultural University, Wenjiang 611130, China;
    2 Guizhou Rice Research Institute, Guiyang 550006, China
  • Received:2013-07-05 Published:2013-10-28

Abstract: Through the study of different time and different degrees of water stress in young panicle formation stage of rice,to study the effects of rice leaf area,chlorophyll content,photosynthetic rate,dry matter translocation, The results show that photosynthetic rate,Chla/b,SPAD content under water stress were lower in leaf net,After re-waterinng,photosynthetic rate, Chla/b, SPAD content at short-duration treatment is much higher than that of the control level,stem and sheath material conversion rate and output rate were show that (-25 ±5 ) kPa under water stress of short duration treatment reached the highest. The result that in young panicle formation,stage,the chorl-phyll,photosynthetic rate and leaf area can grow quickly,in later stage,the dry matter accumulate more and transfer become fast,it can led to reduce water and synergy.

Key words: Rice, Young panicle formation stage, Water stress, Photosynthetic material

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Cite this article

LI Shu-xing, GUO Hui, LI Min, SUN Yong-jian, FENG Jun. Young Panicle Formation Stage after Water Stress on the Production and Transport of Photosynthate in Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(5): 133-137. doi: 10.7668/hbnxb.2013.05.024.

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