Genotypic differences in utilization of assimilate sources during maturation of wheat under chronic heat and heat shock stresses

  title={Genotypic differences in utilization of assimilate sources during maturation of wheat under chronic heat and heat shock stresses},
  author={Jian-bo Yang and R. G. Sears and Bikram S. Gill and Gary M. Paulsen},
Heat stress from chronic, prolonged exposure up to 32 °C or heat shock from brief exposure to 33 °C and above alters the source of assimilates for grain growth of wheat (Triticum asetivum L.). Our objectives were to identify genotypes that resist chronic heat stress and heat shock and to determine the relative contributions of photosynthesis and stem reserves to grain filling under both conditions. Twenty-eight genotypes were grown in controlled enviroments at 20/15 and 30/25 °C day/night in… CONTINUE READING
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