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GrainGenes Reference Report: PBR-118-93

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Reference	PBR-118-93
Title	Inheritance of net photosynthesis and transpiration efficiency in spring wheat, Triticum aestivum L., under drought.
Journal	Plant Breeding
Year	1999
Volume	118
Pages	93-95
Author	Malik TA Wright D Virk DS
Abstract	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 (F(2), BC(1), BC(2)) of four crosses between each of two drought-resistant and two drought-susceptible genotypes were evaluated under drought in pots 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 varies between crosses from 61% to 84% for net photosynthesis and from 88% for transpiration efficiency.
External Databases	Agricola: 2011-89860
Keyword	[ Hide all but 1 of 14 ] carbon dioxide drought drought resistance gas exchange genetic variation heritability inheritance net assimilation rate photosynthesis transpiration triticum aestivum water stress water use efficiency water vapor

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