STUDY OF THE ADAPTABILITY PARAMETERS OF VARIOUS MORPHOTYPES OF PEAS IN THE CONDITIONS OF THE MIDDLE URALS
2023
Likhacheva, L. I. | Moskalev, A. V.
In the period from 2018 to 2021, a study of the pea collection was conducted on the reaction of cultivars of various morphotypes (leafless, leafy, chameleons) to changes in environmental conditions. The comparative assessment was carried out according to the following parameters: stress resistance, genetic flexibility, plasticity, stability, general and specific adaptive ability and breeding value. Correlation between the parameters of the adaptability of the varieties of the collection and their productivity is considered. According to the results of the study, it was revealed that peas of a leafless type are more plastic and react more strongly than other morphotypes to changes in growing conditions, and have less stress resistance. Also, varieties of this morphotype are characterized by greater productivity and yield potential. The chameleon morphotype proved to be the most environmentally stable and stress-resistant morphotype of peas. Varieties of this morphotype do not give a high, but stable yield. Based on the results of the study of the collection, genetic sources have been identified for the creation of adaptive and plastic varieties: leafless - Astronaut (Germany), Rocket (Denmark), Premier (Rostov region), Thomas (Tyumen region), chameleon - Spartak (Oryol region) and leaf line 13-24 (Sverdlovsk region).
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