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2003 | 44 | 4 | 481-489
Article title

Genotype-dependent variation in the transpiration efficiency of plants and photosynthetic activity of flag leaves in spring barley under varied nutrition

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Languages of publication
EN
Abstracts
EN
In the study, spring barley genotypes of various origin and breeding history were found to show a broad genetic variation in the vegetative and generative measures of the whole-plant transpiration efficiency (TE), photosynthesis (A) and transpiration (E) rates of flag leaves, leaf efficiency of gas exchange (A/E) and stress tolerance (T) when grown till maturity in soil-pots under high and reduced NPK supplies. Broad-sense heritabilities for the characteristics ranged from 0.61 to 0.87. Significant genotype-nutrition interactions were noticed, constituting 19-23 % of the total variance in TE measures. The results suggest that at least some ?exotic? accessions from Ethiopia, Syria, Morocco and/or Tibet may serve as attractive genetic sources of novel variations in TE, T and A for the breeding of barleys of improved adaptation to less favourable fertilisation.
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Year
Volume
44
Issue
4
Pages
481-489
Physical description
Contributors
author
author
References
Document Type
ARTICLE
Publication order reference
A.G. Gorny, Institute of Plant Genetics, Polish Academy of Sciences, ul. Strzeszynska 34, 60-479 Poznan, Poland
Identifiers
YADDA identifier
bwmeta1.element.element-from-psjc-dd31473c-b5f8-35df-86bc-88c62df9e6cf
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