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不同水稻品种在不同光照条件下的光合特性及干物质积累
引用本文:童平,杨世民,马均,吴合洲,傅泰露,李敏,王明田.不同水稻品种在不同光照条件下的光合特性及干物质积累[J].应用生态学报,2008,19(3):505-511.
作者姓名:童平  杨世民  马均  吴合洲  傅泰露  李敏  王明田
作者单位:1. 四川农业大学水稻研究所,四川温江,611130
2. 四川农业大学农学院,四川雅安,625014
3. 四川省气象局,成都,610072
基金项目:国家科技支撑计划重大项目 , 四川省育种攻关专项资助项目
摘    要:对12个杂交水稻品种在两类生态条件下的光合特性及干物质积累进行了研究.结果表明:水稻适应环境的能力主要由其自身因素决定,品种之间存在较大差异.品种间的净光合速率和叶绿素含量差异均比生态区域间的差异更显著.产量与总干物质量和净光合速率呈显著正相关,决定系数R2分别为0.584和0.590,与茎鞘物质输出率和茎鞘物质转换率相关不显著.与低光强地区相比,高光强地区叶片厚度和干物质积累量增加,茎鞘物质输出率和茎鞘物质转换率降低.在光照充足的条件下,产量中来自于后期光合积累物质的比例较大;在光照不足的条件下,产量中来自于前期干物质积累及其转运的比例较大.

关 键 词:杂交水稻  生态条件  光合特性  干物质积累  产量  水稻品种  不同光照条件  光合特性  干物质积累量  conditions  light  different  varieties  hybrid  rice  dry  matter  accumulation  比例  转换率  叶片厚度  高光强  地区  率相关  茎鞘物质输出率  决定系数  干物质量  产量
文章编号:1001-9332(2008)03-0505-07
收稿时间:2007-03-15
修稿时间:2007年3月15日

Photosynthetic characteristics and dry matter accumulation of hybrid rice varieties under different light conditions.
TONG Ping,YANG Shi-min,MA Jun,WU He-zhou,FU Tai-lu,LI Min,WANG Ming-tian.Photosynthetic characteristics and dry matter accumulation of hybrid rice varieties under different light conditions.[J].Chinese Journal of Applied Ecology,2008,19(3):505-511.
Authors:TONG Ping  YANG Shi-min  MA Jun  WU He-zhou  FU Tai-lu  LI Min  WANG Ming-tian
Affiliation:Institute of Rice Research, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China. tongpingtp@163.com
Abstract:The study on the photosynthetic characteristics and dry matter accumulation of twelve hybrid rice varieties in the eco-environments with low- and high light intensity showed that the adaptation abiility of the varieties to eco-environment was mainly (depended on the varieties themselves, and there existed greater (differenees among them. The differences in net photosynthetic rate (Pn) and chlorophyll content (Chl) were more significant among the varieties than between the eco-environments. The grain yield had significant positive correlations with Pn and total dry matter mass (TDM), the determination coefficient R2 being 0.584 and 0.590, respectively, but no significant correlations with the export percentage of the matter in stem-sheath (EPMSS) and the transformation percentage of the matter in stem-sheath (TPMSS). In the eco-environment with high light intensity, the leaf thickness and dry matter accumulation increased, while the EPMSS and TPMSS decreased. Under enough sunlight condition, the high proportion of matter in grain yield was mainly come from the photosynthesis at late growth stages; while under insufficient sunlight condition, it was mainly originated from the early growth stages photosynthesis.
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