Photosynthetic activity of developing leaves of Zea mays is less affected by heat stress than that of developed leaves

The results indicate that the photosynthetic CO2 assimilation rate of developing leaves was less affected by heat stress than that of developed leaves

MD. Abdul Karim

2003

Scholarcy highlights

  • Various physiological and biochemical characters of a leaf change with stages of its ontogeny
  • The results indicate that the photosynthetic CO2 assimilation rate of developing leaves was less affected by heat stress than that of developed leaves
  • The impaired Pn recovered within 24 h in the developing leaves, while the Pn of developed and nearly‐developed leaves did not reach the non‐stress level, even after 72 h
  • The Pn of the developed leaves of genotype F250 was less affected by heat stress than that of genotype F223
  • The chlorophylls a and b were degraded by heat stress; the degradation was pronounced in the developed leaves
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