Affiliation:
1. Omsk State Agrarian University
Abstract
The yield of vegetable peas is significantly reduced when plants are lodging. To solve this problem, mutant leafless genotypes with modified leaf morphology can be used in breeding. A comparative assessment of collection samples of vegetable peas of the regular and mutant mustachioed morphotype for resistance to lodging and seed productivity was carried out at the educational and experimental farm of the Omsk State Agrarian University in 2017–2018. As an object for study, 62 samples of vegetable peas from the collection of VIR, VNIISSOK and foreign selection were used. As a result of the research, it was established that the proportion of resistant and highly resistant forms in plants with a common (leafy) morphotype amounted to a total of 30 %, in baleen (leafless) plants there were significantly more of these – 77 %. The mustachioed forms of vegetable peas have greater resistance to lodging in the phase of biological ripeness. The resistance coefficient of samples with a mustachioed morphotype was on average 0.85, and that of leafy ones – 0.64. An average relationship was established between the height of the grass stand and resistance to lodging in vegetable peas, and in leafy samples it was higher, the correlation coefficient was r = 0.56, in baleen samples – r = 0.43. Sources of high resistance to lodging were identified for each morphotype of vegetable pea: mustachioed – Cruiser, Flagman 8, Venture, Nemchinsky, Afilla, Poltavets, Azur, P. Khangilda, Teras 888; leaflet SH-92-79-3-3-1-1, Aldea, Norli, Adrianna, Gribovsky Jubilee. Vegetable pea samples are recommended for breeding that combine high expression of productivity elements with resistance to lodging for each morphotype: by the number of beans – Azur, Afilla (mustachioed), Aldea, Fruhe (regular); by weight of beans – Azur, Afilla (mutant), Flagship 8, Fruhe, Aldea, SH-92-79-3-3-1-1 (leaf); by the number of seeds in a bean – Afilla, Venture (baleen), Aldea, Norli, SH-92-79-3-3-1-1 (leaf); by weight of seeds per plant – Azur, Afilla (mutant), Fruhe, Aldea, SH-92-79-3-3-1-1 (leaf); by weight of 1 000 seeds – Flagman 8, In Memory of Khangildin, Azur (mustached), Fruhe, Aldea (leafy).
Publisher
Federal State Educational Institution of Higher Education Novosibirsk State Agrarian University
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