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作物学报 ›› 1985, Vol. 11 ›› Issue (01): 53-58.

• 研究论文 • 上一篇    下一篇

与冬小麦早衰有关的几项生理参数

朱德群   

  1. 中国农业科学院作物育种栽培研究所
  • 收稿日期:1984-02-06 修回日期:1985-01-03 出版日期:1985-03-12 网络出版日期:1985-03-12

PHYSIOLOGICAL PARAMETERS IN RELATION TO PREMATURE SENESCENCE IN WINTER WHEAT (TRITICUM AESTIVUM)

Zhu Dequn, Zhu Xialing, Zhan Zhihong, Qi Baozi   

  1. Laboratory of Plant Physiology; Institute of Crop Breeding and Cultivation; Chinese Academy of Agricultural Sciences
  • Received:1984-02-06 Revised:1985-01-03 Published:1985-03-12 Published online:1985-03-12

摘要: 选取不早衰、轻度早衰及严重早衰三种类型的冬小麦品种,测定其主茎旗叶的叶氮量(单位叶面积含氮量,N/LA)、硝酸还原酶活性(NRA)、氮收获指数(籽粒 N/地上部 N,NHI)、千粒重日增长量及根系活力(RA)。结果表明:随品种早衰程度的不同各生理参数具相似的变化规律,总是不早衰类型的高于严重早衰类型的,轻度早衰的居中。

Abstract: Three types of winter wheat(Triticum aestivum)varieties on premat-ure senescence were measured for the nitrogen content per unit leaf area(N/LA),the nitrate reductase activity(NRA)of main shoot flag leaves,the nitrogen harvest index(the nitrogen content of grain/total nitrogencontent of whole shoot,

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