Browsing by Author "Sașco, Elena"

Filter results by typing the first few letters
Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
  • Thumbnail Image
    Item
    Reacția soiurilor autohtone de grâu la acțiunea factorilor de stres în condiții de câmp
    (CEP USM, 2024) Sașco, Elena
    Common wheat, in the course of domestication, developed unique or differentiated mechanisms of adaptation to abiotic stressors through morphological or growth, physiological and biochemical pathway modifications. Classification based on the plasticity of the response to drought stressors under field conditions (Relative Water Content and Dry Mass), and at 46o C temperature under laboratory conditions (Cell Membrane Stability Index) showed a distribution of wheat genotypes into 2 clusters. The genotypes Mirg./Od.162/M79 and M5/Mirg./Od.162, set at the smallest Euclidean distance 4.3 with the highest Mean values (72.5 and 72.8) were categorized into the cluster with the most advanced tolerance and can be used in improving the genetic gain for drought tolerance.
  • Thumbnail Image
    Item
    VARIABILITATEA UNOR TRĂSĂTURI CANTITATIVE LA GRÂUL DE TOAMNĂ ÎN CONDIȚII DE SECETĂ
    (CEP USM, 2023) Sașco, Elena
    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.