华北农学报 ›› 2010, Vol. 25 ›› Issue (S2): 107-109. doi: 10.7668/hbnxb.2010.S2.024

所属专题: 小麦 生物技术

• 论文 • 上一篇    下一篇

保护性耕作条件下不同基因型小麦水分利用效率研究

薛春芝, 李升东   

  1. 山东省农业科学院作物研究所, 山东 济南 250100
  • 收稿日期:2010-09-17 出版日期:2010-12-31
  • 作者简介:薛春芝(1986-),女,山东寿光人,主要从事小麦水分生理机理研究。
  • 基金资助:
    公益性行业(农业)科研专项经费项目(NYHYZX07-002);农业科技成果转化资金项目(05EFN213700156)

Comparison of Water Use Efficiency Between Different Genetic Wheat under No-tillage and Rainfed Conditions

XUE Chun-zhi, LI Sheng-dong   

  1. Crop Research Institute,Shandong Academy of Agricultural Sciences,Jinan 250100,China
  • Received:2010-09-17 Published:2010-12-31

摘要: 在保护性耕作秸秆还田条件下,以济麦22、烟农19、济南17和烟农21四个不同基因型小麦(Triticum aesti-vumL.)品种为供试材料,研究了小麦不同生育期的叶面积系数、旗叶SPAD值、旗叶光合速率(Pn)和归一化植被指数(NDVI)与水分利用效率(WUE)的关系。结果表明,在保护性耕作秸秆还田条件下LAI、SPAD值、Pn和NDVI与该品种水分利用效率呈非线性的关系,经济产量是影响水分利用效率的关键指标;不同基因型小麦的LAI、SPAD值、Pn和NDVI存在明显的基因型差异;济麦22和烟农21能够充分利用土壤的有限水资源,获得较高的生物产量和经济产量,可以作为旱地保护性耕作条件下提高小麦水分利用效率,培育健壮群体(高产低耗)的种质资源。

关键词: 小麦, 保护性耕作, 水分利用效率

Abstract: "Under no-tillage and rainfed conditions,where water constitutes the limiting factor,the aim of this study is to obtain the higher production per unit of available water.The association among physiological factors,agronomic factors,and water-use efficiency(WUE) has a close-knit relationship,which confusion can lead to conceptual oversight and wrong decisions in implementing breeding programs for drought-prone environments.A field experiment was conducted in Jinan,Shandong,China(36°42'N,117°04'E) for 3-yr(2007-2009) to evaluate various varieties for their efficiency in water use.There is an apparent difference in WUE in yield of four different genotypes winter wheat,suggesting that potential genetic factors are a major determinant of WUE in yield.The results showed that different genotypes of wheat between the leaf area index,SPAD value,period of photosynthetic rate(Pn),the normalized difference vegetation index(NDVI),panicle rate and economic output with the size and growth and development were greater than the percentage change,showing obvious difference between genotypes. "

Key words: Wheat, Conservation tillage WUE

中图分类号: 

引用本文

薛春芝, 李升东. 保护性耕作条件下不同基因型小麦水分利用效率研究[J]. 华北农学报, 2010, 25(S2): 107-109. doi: 10.7668/hbnxb.2010.S2.024.

XUE Chun-zhi, LI Sheng-dong. Comparison of Water Use Efficiency Between Different Genetic Wheat under No-tillage and Rainfed Conditions[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(S2): 107-109. doi: 10.7668/hbnxb.2010.S2.024.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2010.S2.024

               http://www.hbnxb.net/CN/Y2010/V25/IS2/107