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Rice yields decline with higher night temperature from global warming by ; Shaobing Peng, Jianliang Huang, John E. Sheehy, Rebecca C. Laza, Romeo M. Visperas, Xuhua Zhong, Grace S. Centeno, Gurdev S. Khush, and Kenneth G. Cassman K.K.M.N.Chamara AG/2008/2732
Introduction ,[object Object],[object Object],[object Object]
How temperature affect on rice yield  ?? Crop yield   crop biomass   Photosynthesis Respiration losses Temperature
Objectives ,[object Object]
Materials & Methods ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
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Crop Data Collection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
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Data analyze ,[object Object],[object Object]
Results and Discussion
 
 
Conclusions ,[object Object],[object Object]
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Rice yields decline

  • 1. Rice yields decline with higher night temperature from global warming by ; Shaobing Peng, Jianliang Huang, John E. Sheehy, Rebecca C. Laza, Romeo M. Visperas, Xuhua Zhong, Grace S. Centeno, Gurdev S. Khush, and Kenneth G. Cassman K.K.M.N.Chamara AG/2008/2732
  • 2.
  • 3. How temperature affect on rice yield ?? Crop yield crop biomass Photosynthesis Respiration losses Temperature
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Notes de l'éditeur

  1. Trends in maximum and minimum temperatures and radiation from 1979 to 2003 for the whole year ( A – C ), dry season (January to April) ( D – F ), and wet season (June to September) ( G – I ) at the IRRI Farm. Trends (slopes) for the maximum temperature in A , D , and G and radiation in F are not statistically significant at the P 0.05 probability level according to the Student’s t test.
  2. The relationship between rice-yield attributes (grain yield, above-ground total biomass, and spikelets per m2) and growing-season mean maximum temperature ( A – C ), minimum temperature ( D – F ), or radiation ( G – I ). Yield-attribute data were obtained from irrigated field experiments in which cropmanagement practices were optimized to achieve the highest possible yields from rice cultivar IR72 at the IRRI Farm in the dry seasons from 1992 to 2003. Growing-season mean maximum and minimum temperatures and radiation were calculated from daily values for the entire growing season from transplanting to harvest.