Results of the study of the modern gene pool of narrow-leaved lupine

Abstract

Narrow-leaved lupine (Lupinus angustifolius L.) is a valuable leguminous fodder crop adapted to a wide range of soil and climatic conditions. Modern fodder varieties of narrow-leaved lupine have a low content of alkaloids in the grain of 0.02-0.10%, a high protein content of 32.0-38.0% and a number of other nutrients valuable for fodder production. In the collection nursery 2018-2020 Under the conditions of a changed climate, forage varieties and specimens of two morphological groups were studied: branched with different degrees of blocking of lateral branching and spike-like. The results of the structural analysis of the gene pool for the main elements of productivity and its morphobiological features are presented. According to the productivity of plants in the indeterminate group, the varieties USN 53-236, Narrow-leaved 53-02 and Hybrid 1215 (7.7-6.1 g / plant) were distinguished; by weight 1000 pcs. seeds - varieties Belorozovy 144 and Crystal (136.4-120 g); by the number of seeds in a bean - Belorozovy 144 and Narrow-leaved 53-02 and the Belarusian cultivar Alliance (4.1-4.2 pcs.). In the group of spike-like forms, the cultivar Epigonal 1215 (3.2 g / plant) was distinguished by grain productivity, by the weight of 1000 seeds - the Belarusian cultivar Talent (102.2 g). As a result of the assessment of the collection material in terms of the height and weight of plants, a variety meter was identified that exceeded the control, variety Vityaz, by 15.0-27.7 cm: Belorozovy 144, SN 78-07 and Hybrid 1215. The growing season of the studied numbers varies in a wide range of 80- 101 days. The group of spike-shaped numbers is characterized by ultra-early maturity (71-75) days.