北方农业学报 ›› 2019, Vol. 47 ›› Issue (1): 68-73.doi: 10.3969/j.issn.2096-1197.2019.01.12

• 著者文摘 • 上一篇    下一篇

河西走廊玉米水分高效利用种质的筛选方法探讨

张雪婷[1];柳娜[1];杨长刚[1]   

  1. [1]甘肃省农业科学院,甘肃兰州730070
  • 收稿日期:2018-12-08 出版日期:2019-01-19 发布日期:2019-08-19
  • 作者简介:张雪婷(1984—),女,助理研究员,硕士,主要从事作物节水抗旱种质的资源筛选与利用工作。
  • 基金资助:
    国家公益性行业(农业)科研专项(201503125-1).

Discussion on screening methods of maize germplasm with high water use efficiency in Hexi Corridor

ZHANG Xueting[1];LIU Na[1];YANG Changgang[1]   

  1. [1]Gansu Academy of Agricultural Sciences,Lanzhou 730070,China
  • Received:2018-12-08 Online:2019-01-19 Published:2019-08-19

摘要: 为讨论抗旱性与节水抗旱性的不同,通过引入环境指数概念,利用干旱产量指数DYI、丰水产量指数WHY和产量-水分高效利用指数YHWUEI综合评价河西走廊绿洲灌区玉米品种的节水抗旱能力。初步将上述三指数均大于1.050定义为该地区高水分利用效率型玉米品种的阈值;三指数小于1.000定义为该地区低水分利用效率型玉米品种的阈值;将三指数介于1.000~1.050定义为该区域中等水分利用效率型玉米品种的阈值。8个参试品种中,甘玉801在干旱胁迫及充水环境的产量和水分利用效率均高于其他品种,且三指数大于1.050,可认为是河西灌区高水分利用效率型玉米品种。

关键词: 玉米;节水抗旱性;筛选方法

Abstract: This study focused on the difference between drought resistance and water-saving drought resistance.Based on environmental indexes which were drought yield index(DYI),high water yield index(WHY)and yield-water efficient utilization index(YHWUEI),the water-saving and drought resistance of maize varieties in Hexi Corridor oasis irrigated area were evaluated.Those with the DYI,WYI and YHWUEI indexes which were all greater than 1.050 were defined as the high water efficiency maize varieties in this area.Those with the three indexes less than 1.000 were defined as the low water efficient maize varieties.Those with the three-indexes in the range of 1.000-1.050 were defined as the middle water efficient maize varieties.In this experiment,the WUE of Ganyu 801 in drought stress and water filling environments were higher than other varieties.Moreover,its DYI,WHY,YHWUEI indexes were higher than 1.050.According to these results,Ganyu 801 could be considered as a high water efficiency maize variety in Hexi Corridor.

Key words: Maize;Water saving and drought resistance;Screening method

中图分类号: 

  • S513