No abstract

No abstract

Relevance. The genus Brassica includes the most important vegetable, oilseed, spice and forage crops. Many representatives of cabbage are widely used as model objects for studying economically valuable traits. Limited publications devoted to the study of genetic aspects of the implementation of morphological quantitative features of B. rapaand the lack of data on the influence of environmental parameters on their implementation make it a very urgent task to study these features in the RAES. Material and methods.The purpose of this work is to study the influence of environmental light factors on the manifestation of economically valuable features in the mapping populations of B. rapain the RAES. The peculiarity of our research is the study of lines of mapping populations of B. rapa in strictly controlled conditions of the RAES. The studied populations were grown under optimal conditions with a 12-hour photoperiod. 21 DH 30 lines and 31 DH 38 lines were used. Several types of economically valuable traits were studied: the timing of transition to flowering, the growth rate of the plant, the habit and morphological characteristics of the leaf and leaf rosette. Results. A high degree of variation in the expression of the studied traits between lines within the population was revealed, which is consistent with previously published data [1, 2]. Highly productive genotypes, which can be used in further genetic selection work, including for obtaining genotypes, lines, and varieties adapted for growing in light culture, have been selected. The obtained data can also be used for further study of the influence of physical environmental factors on the manifestation of selectively significant quantitative traits in cabbage plants.

No abstract

Описаны биологические особенности редиса (Raphanus sativus L.) коллекции ВИР в условиях интенсивной светокультуры. Результаты свидетельствуют о высоком разнообразии сортовой реакции редиса на выращивание в ИС. Определена амплитуда изменчивости основных морфологических, фенологических признаков и продуктивности в зависимости от сортотипа. Выделены источники хозяйственно ценных признаков для селекции.The present study describes biological features of small radish (Raphanus sativus L.) grown under the intense light culture conditions. Results, obtained using regulated system, demonstrated high variability of reaction to intense light conditions among the varieties of small radish. Amplitude of variability of the main morphological, phenological traits and productivity depending on variety type, was assessed. Samples of small radish, which can be potential sources of economic-valuable traits for future breeding (such as resistance to bolting under the intense light culture, compact rosette, high productivity and marketability) were identified.