Effects of reddening of cotton (Gossypium hirsutum L.) leaves on functional activity of photosynthetic apparatus

Velikova V., Tsonev T., Edreva A., Gurel A. , Hakerlerler H.

PHOTOSYNTHETICA, vol.40, no.3, pp.449-452, 2002 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 3
  • Publication Date: 2002
  • Doi Number: 10.1023/a:1022695513060
  • Title of Journal : PHOTOSYNTHETICA
  • Page Numbers: pp.449-452


Strong inhibition of rates of CO2 assimilation and transpiration, stomatal conductance, and water use efficiency as well as photosystem 2 (PS2) photochemical activity were related to the severity of reddening. The inhibition of photosynthesis in red cotton leaves was due to both decreased photochemical activity and stomatal limitation. Lowered photosynthetic capacity could be one of the main factors of reduced yield in reddening cotton.