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Potential of potato interspecific hybrids by the ability to tie marketable tubers

Author(s) , , ,
Kravchenko N.V., , ,
Category The Agronomy
year 2013 issue Випуск №83. Частина 1
pages 116-122 index UDK 635.21:631.5
DOI
Abstract Presented the results of studies of determining the potential of interspecific hybrids of potato and their backcrosses concerning limits of manifestation of marketable tubers amount under a bush, the distribution of the researched material on classes of the number of hybrids with a higher expression of the rate than in the best sorts-standards, of stability of annual feature manifestation. Fixed a high potential of interspecific hybrids of potato by tying a large number of marketable tubers. This refers to the high value of the upper limit of the expression index of the presence of hybrids in the grades with a maximal feature manifestation. A significant influence of the external conditions on the feature manifestation both in interspecific hybrids and in standards, and therefore the portion of hybrids excessing the significance of the best varieties was 2.0%, 3.1 and 22.8. Nine of the 23 selected hybrids significantly exceeded by the average number of marketable tubers in the nest grade Yavor (standard). Coefficient of variation of feature manifestation in the most of hybrids was higher than in standards (21.7% and 43.4), but in such of them as: 90.35s394, 97.396s2 01.39G25 it was within the limits of 5.4 – 7.0%.
Key words potato, interspecific hybrids, the number of marketable tubers, the meteorological conditions.
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