VARIABILITATEA UNOR TRĂSĂTURI CANTITATIVE LA GRÂUL DE TOAMNĂ ÎN CONDIȚII DE SECETĂ
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Date
2023
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CEP USM
Abstract
It has been researched the response of some quantitative traits at the
early ontogeny stage of the wheat genotypes M79/M5 (aristate), M79/M5 (nonaristate)
and Mirg./Od.162/M79 under conditions of water restriction adjusted with
polyethylene glycol (PEG 6000) in concentrations of 10% and 16% at temperatures of
22oC and 12oC. Variance analysis revealed PEG desiccation with major weight in the
phenotypic variance of Germination and Stem/Root ratio (80.2% and 74.3%). The
temperature was accounted for 85.2%, 88.8% and 88.0% of the variance of Root, Stem
and Whole Plant. Both stressors produced 38.5% and 57.0% in phenotyping the
Integral Plant Index. The high values both for Heritability coefficient in broad sense,
but also for Genetic advance over the mean predict an advantage in the improvement of
wheat during drought.
Description
SAȘCO, Elena. Variabilitatea unor trăsături cantitative la grâul de toamnă în condiții de secetă. In: Plant Protection - Achievements and Perspectives: scientific international symposium, Chisinau, October 2-3, 2023. CEP USM, 2023. pp.393-399. ISBN 978-9975-62-563-0. DOI:https://doi.org/10.53040/ppap2023.59.
Keywords
Triticum aestivum L., PEG 6000, germination, root and stem length, seedlings vigor index, and analysis of variance
Citation
SAȘCO, Elena. Variabilitatea unor trăsături cantitative la grâul de toamnă în condiții de secetă. In: Plant Protection - Achievements and Perspectives: scientific international symposium, Chisinau, October 2-3, 2023. CEP USM, 2023. pp.393-399. ISBN 978-9975-62-563-0. DOI:https://doi.org/10.53040/ppap2023.59.