Inheritance of net photosynthesis and transpiration efficiency in spring wheat, Triticum aestivum L., under drought

被引：23

作者：

Malik, TA

Wright, D ^{[1
]}

Virk, DS

机构：

[1] Univ Coll N Wales, Sch Agr & Forest Sci, Bangor LL57 2UW, Gwynedd, Wales

[2] Univ Agr Faisalabad, Faisalabad, Pakistan

来源：

PLANT BREEDING | 1999年 / 118卷 / 01期

关键词：

Triticum aestivum; drought resistance; genetic analysis; heritability; net photosynthesis; transpiration efficiency;

D O I：

10.1046/j.1439-0523.1999.118001093.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The inheritance of net photosynthesis and transpiration efficiency in spring wheat under drought were studied in two years in order to determine their heritability. The parents, F-1 and segregating generations (FI. BC,, BC,) of four crosses between each of two drought-resistant and tao drought-susceptible genotypes were evaluated under drought in puts under glasshouse conditions. Measurements of gas exchange were made using a portable gas-analysis system. Generation means and variance component analyses of the data suggested that these traits are simply inherited and controlled mainly by additive genetic variation. Narrow-sense heritability estimates varied between crosses From 61% to 84% for net photosynthesis and from 88% to 89% for transpiration efficiency.

引用

页码：93 / 95

页数：3

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