THE STAGES OF HETEROTIC HYBRIDS F1 DEVELOPMENT IN EUROPEAN RADISH
2017
M. A. Kosenko
The scheme of development of two-line of hybrids F1 in European radish based on self-incompatibility includes five stages, as follows: 1 – selection of self-incompatible lines, common and specified combining ability estimation; 2 – inbreeding and selection to make the lines homozygous for morphological traits, common and specified combining ability estimation; maintenance and reproduction of self-incompatible lines; 4 – production of hybrid seeds. The research work on assessment of hybrid F1 that were obtained from cross of eight self-incompatible lines of European winter radish by the Griffing’s method was carried out in 2016. The assessment of length, diameter and yield of radish root was performed. According to the root shape the heterotic hybrids F1 were divided into three groups: rounded-flat, 48.2%; round, 50.0%; and flatten-round, 1.8%. The level of root marketability of hybrids F1 reached 100%. As a result of the work the promising hybrid combination distinguished by high uniformity, marketability and high yield were selected out.
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