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Acta Agron Sin ›› 1986, Vol. 12 ›› Issue (04): 217-224.

• ORIGINAL PAPERS •     Next Articles

CANOPY STRUCTURE OF WINTER WHEAT CULTIVARS IN BEIJING AREA

Zhao Shuangning;Li Pei;Zeng Zherong;Tai Jianxiang;Zhuang Qiaosheng   

  1. Institute of Crop Breeding and Cultivation; CAAS; Beijing
  • Received:1986-03-17 Revised:1900-01-01 Online:1986-11-12 Published:1986-11-12

Abstract:

Relationships between yield and its components and structures abovethe top 3 nodes were studied among 22 winter wheat cultivars underhigh yielding conditions in 1983-1985.It was found that yield/head,towhich 1000 kernel weight and kernels/head contributed almost equally,played a more important role than heads/m~2 in determining yield.Thewidth,area and green area duration of flag leaf lamina correlated po-sitively with yield/head,1000 kernel weight and kernels/head but neg-atively with heads/m~2,so that thei...

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