Breeding Model of White Lupine Cultivar

In order to increase the productive potential of plant species, it is necessary to develop models for selection of genetically significant traits. In the present research 23 white lupine cultivars were studied with a purpose to determine the influence of basic traits on their productivity by a regression model and select suitable parental components for the needs of combinative breeding. The results showed that the linear component in the regression of seed productivity in white lupine regarding the studied quantitative traits was statistically significant and considerable. The highest relative share on seed productivity had the growth rate (+ 43.367), the number of seeds per plant (+0.321) and plant weight (+ 0.266). The breeding model of plant in white lupine has the following characteristics: vegetative period ≤ 98 days, growth rate ≥ 0.71, plant height 36-71 cm, aboveground mass ≥ 44 g, number of pods 13-16, number of seeds ≥ 69, number of seeds in a pod 3-4, mass of 1000 seeds ≥ 298 g. From the white lupine cultivars studied in our collection, promising to realize this model are Astra, Tel Keram, Termis Mestnii and Solnechnii that can be included in hybridization schemes in the breeding-improvement work of this crop. Choosing suitable parents in the combined breeding by using the simplex method will allow targeted planning of the breeding process to development of high-productive cultivars in shorter terms.