Plant Diversity ›› 1982, Vol. 4 ›› Issue (04): 1-3.

• Articles •    

RESPONSE OF WINTER WHEAT ON THE CLIMATE AT DIFFERENT ALTlTUDE I.COMPARISION OF LEAF CHARACTERTSTTCS AND YIELD COMPONENT

Li Cunxin, Zhang He, Lin Dehui and Ni Wen   

  1. Kunmming Institute of Botany,Academia sinica
  • Online:1982-08-25 Published:1982-08-25

Abstract: The present paper compared winter wheat (Triticum sativum L.c.v. "Feng-mai-13") grown on the different altitude. The results showed, comparing wheat grown on higher altitude (2150 m) with that grown on lower altitude (840 m), that the former has a longer duration of leaves, a smaller area per leaf and total leaf area a plant; a lower intensity of photosynthesis during early stage, a higher intensity of photosynthesis during filling period, and little difference between both stages; a heavier thousand-kernel-weight, and a lesser number of grains per head than the latter. On the other hand, the difference of yield component has been disscused in terms of photosynthesis-yield. We proposed, on tbe basis of the dis- scusion, an assumption that how increase in number of grains per head which wheat is grown on higher altitude.

Key words: response, winter, climate, altitude