安徽农业科学2018，Vol.46Issue(8)：61-63,3.
苏打盐碱胁迫对灌浆期水稻剑叶光合特性和产量的影响
Effects of Saline Sodic Stress on Photosynthetic Characteristics of Flag Leaves and Yield of Rice at Filling Stage
高显颖 1义如格勒图 1巴图仓 2杨壘 3迟晓雪 1其力格尔 1邵玺文 3耿艳秋3
作者信息
- 1. 呼伦贝尔市草原科学研究所,内蒙古呼伦贝尔021008
- 2. 呼伦贝尔职业技术学院,内蒙古呼伦贝尔021008
- 3. 吉林农业大学农学院,吉林长春130118
- 折叠
摘要
Abstract
[Objective]To study the effects of saline sodic stress on photosynthetic characteristics of flag leaves and yield of rice at filling stage. [Method]The pot culture experiment was conducted to study the photosynthetic and physiological indexes of flag leaves of rice at filling stage in different treatments by mixing 8 different concentrations of saline-alkali soils according to the proportion of the soda saline-alkali soil and natural soil.[Result]Under light saline sodic stress,the differences in Pn,Gs and Tr were not significant.With the further enhancement of saline-alkali stress,the differences in Pn,Gs and Tr between different treatments were significant.Intercellular CO2concentration(Ci)in different treatments had little changes,indicating that stomatal limitation effects were little.The decrease of Pn was from non-stomatal limitation effect under saline sodic stress.[Conclusion]Under saline-alkali stress,photosynthetic characteristics in flag leaves and yield of rice decreased.Under light saline-alkali stress,photosynthetic characteristics and yield of rice showed no significant decrease.With the increase of saline-alkali stress,the decline became significant.关键词
盐碱胁迫/水稻/光合作用/产量Key words
Saline-sodic stress/Rice/Photosynthetic characteristics/Yield分类
农业科技引用本文复制引用
高显颖,义如格勒图,巴图仓,杨壘,迟晓雪,其力格尔,邵玺文,耿艳秋..苏打盐碱胁迫对灌浆期水稻剑叶光合特性和产量的影响[J].安徽农业科学,2018,46(8):61-63,3.
