北方农业学报 ›› 2015, Vol. 43 ›› Issue (5): 1-1.

• 试验研究 •    下一篇

玉米回交导入系BC1F2代吐丝期叶片光合参数与耐旱性的关系

赵晓亮 孙继颖 高聚林 苏治军 王志刚 于晓芳 胡树平   

  1. 内蒙古农业大学农学院,内蒙古呼和浩特010019
  • 出版日期:2015-10-20 发布日期:2015-10-20
  • 通讯作者: 赵晓亮
  • 作者简介:赵晓亮(1987-),男,硕士研究生,河北承德人,主要从事作物生理生态及决策系统研究。 通讯作者:孙继颖(1972-),女,内蒙古乌兰浩特人,副教授,硕士生导师,主要从事大豆栽培生理研究。 高聚林(1964-),男,内蒙古鄂尔多斯人,教授,博士生导师,主要从事玉米栽培生理研究。
  • 基金资助:
    内蒙古杰出青年基金项目(2011JQ02); 国家现代农业产业技术体系建设专项(CARS-02-63); 国家粮食丰产科技工程项目(2011BAD16B13,2012BAD04B04,2013BAD07B04,2011BAD16B14)

The relationship between the drought tolerance and the leaf photosynthetic parameters of backcross import department BC1F2 at silking stage in corn

ZHAO Xiaoliang, SUN Jiying,GAO Julin, SU Zhijun,WANG Zhigang,YU Xiaofang,HU Shuping (The Agronomy of Inner Mongolia Agriculture University,Hohhot 010019,China)   

  • Online:2015-10-20 Published:2015-10-20

摘要: 以39份BC1F2玉米回交群体及其亲本为供试材料,在吐丝期采取灌溉和干旱胁迫处理。探究了自交系与BC1F1群体吐丝期的光合参数与耐旱性的关系及其耐旱性。结果表明,净光合速率(Pn)、蒸腾系数(Tr)和玉米单株产量耐旱系数呈正相关,单株产量、耐旱系数、净光合速率(Pn)和蒸腾系数(Tr)的方差贡献率和累计贡献率最大,可以用来评价玉米耐旱性;39份玉米自交系中有1份是抗旱的,4份是比较抗旱的,34份是不抗旱的;在BC1F2群体中有12份是抗旱的,1份是比较抗旱的,26份是不抗旱的。通过玉米回交导入系BC1F2的构建,得到13份抗旱性显著提高的玉米BC1F2群体。

Abstract: Under the treatments of the normal irrigation and drought stress at silking stage,39 kinds of BC1F2 backcross groups and their parents of corn were used as the experimental material.The relationship of photosynthetic parameters and the drought tolerance between the inbred lines and BC1F1 groups at silking stage and their drought resistance were explored.The result showed that the coefficient of net photosynthetic rate(Pn),transpiration(Tr) and corn yield drought-resistant coefficient were positively correlated and corn yield,drought-resistant coefficient,the coefficient of net photosynthetic rate(Pn),transpiration(Tr) had the major variance contribution ratio and total contribution ratio, and they could be used to evaluate the drought resistance of corn.It was concluded that one was drought-resistant,4 were the better and 34 was not drought-resistant in 39 kinds of maize inbred lines;In BC1F2 groups,12 drought-resistant kinds were founded,1 was relatively droughtresistant and 26 were not drought-resistant.By built the BC1F2 groups,13 kinds of BC1F2 groups with significantly higher drought resistance were achieved.

中图分类号: 

  • S513