EVALUATION OF HYBRID PEA POPULATIONS FOR OSMOTOLERANCE AND CREATION OF PROMISING LINES FOR BREEDING FOR DROUGHT TOLERANCE BASED ON THEM
2020
Soboleva, G.V. | Zelenov, A.A. | Sobolev, A.N.
The article presents results of assessing the relative drought tolerance of hybrid pea populations of F4 generation of selection FSC LGC. The assessment of stability was carried out on solutions with a high osmotic potential (sucrose 16 atm.). The highest relative drought tolerance was demonstrated by hybrid populations Sof'ya x Temp and Sof'ya x Rodnik. In a field experiment, 23 pea lines obtained by selecting germinated seeds under conditions of osmotic stress were analyzed. Significant fluctuations in morphological traits and elements of productivity were revealed. As a result of a comprehensive assessment of seed yield and productivity traits, promising lines for breeding were identified, combining high seed yield and a complex of economically valuable traits. Most breeding lines of leafy morphotype isolated from the hybrid population Sof'ya x Temp by the complex of studied traits and seed yield exceeded the standard and selecion lines of leafless morphotype, developed from hybrid population Sof'ya x Rodnik
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