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Romanian Journal of Biology - Plant Biology
ROMANIAN ACADEMY |
THE ROLE OF WHEAT GENETIC VARIABILITY IN THE INTERACTION WITH DRESCHLERA SOROKINIANA
GALINA LUPASCU, SVETLANA GAVZER, NICOLAE CRISTEA, ELENA SAȘCO
Abstract:
The treatment of the grains of 10 genotypes of common wheat with 3 filtrates of Drechlera sorokiniana culture, demonstrated the manifestation of specific reactions of the seedling, depending on the genotype, growth organ, fungus isolate. By cluster analysis (dendrograms, k-means methods) the resistant genotypes to the pathogen were identified. The factorial analysis demonstrated that in the reaction of the growth organs to D. sorokiniana isolates, the weight of the genotype factor was 38.2 ... 45%, of the isolate - 34.1 ... 38.8%. For the vigor index, a higher influence of the isolate was recorded - 42.6%, with the genotype factor returning 37.5%. The share of genotype x isolated interactions varied depending on the analyzed character of the plant within the limits of 12.3-19.3% (p<0.5). The pronounced association of fairly high values of the heritability coefficient and the genetic advantage for the growth organs reveal the additive control of resistance, which offers chances of success in the creation of genotypes resistant to the pathogen.
Citation:
GALINA LUPASCU, SVETLANA GAVZER, NICOLAE CRISTEA, ELENA SAȘCO, 2024. THE ROLE OF WHEAT GENETIC VARIABILITY IN THE INTERACTION WITH DRESCHLERA SOROKINIANA, Romanian Journal of Biology - Plant Biology, 69(1-2): 63–76.
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