THE BULBOUS FORMS OF INTERSPECIFIC HYBRIDS OF ALLIUM, THEIR CREATION AND EVALUATION
https://doi.org/10.18619/2072-9146-2019-1-42-45
Abstract
The paper presents the stages of creating bulbous forms between A. cepa L. and A. Vavilovii Pop. et Vved. through hybridization, in vitro embryo culture, backrossing, inbreeding and cross-breeding. As object of research were considered inbred progeny I1-5 from BC1-2F5 combinations of crossing of A. cepa x A. Vavilovii. The parent species A. cepa L. of the onion variety Odintsovets was the standard. In plants of the first year of vegetation studied signs: the color of dry scales of the bulb, the weight of the bulb, the index of the bulb shape and the number of leaves. Phytopathological assessment of onion plants for resistance to downy mildew (peronosporosis) was carried out. In the progeny of interspecies hybrids plants were aligned on the color of the bulb (yellow and brownish). The average weight of the bulb varied from 33.5 to 92.3 g in generations I1-5 from ВС1, and in generations I1-5 from ВС2 it varied from 22.1 to 93.6 g. plants of bulbous forms had a flat bulb (I=0.6-0.7). Only plants from the progeny I3 and I5 from BC2 formed rounded-flat bulbs (I=0,8-0,9). The number of leaves in bulbous plants in the progeny varied on average from 5.3 to 7.1 PCs. The score of peronosporosis was low and medium (0.5-1.0). Was selected form of inbred progenies of I1-5 from BC1-2 with a dense bulb is flat and round-flat shape, which combined a relatively high resistance to downy mildew with a mature bulb is capable of storing.
About the Authors
V. S. Romanov
FSBSI Federal Scientific Vegetable Center
Russian Federation
PhD, Senior Scientist.
Russian Federation
PhD, Senior Scientist.
Selectionnaya str., 14, p. VNIISSOK, Odintsovo district, Moscow region, 143072.
O. V. Romanova
FSBSI Federal Scientific Vegetable Center
Russian Federation
PhD, junior research assistant.
Russian Federation
PhD, junior research assistant.
Selectionnaya str., 14, p. VNIISSOK, Odintsovo district, Moscow region, 143072.
M. M. Tareeva
FSBSI Federal Scientific Vegetable Center
Russian Federation
PhD, Senior Scientist.
Russian Federation
PhD, Senior Scientist.
Selectionnaya str., 14, p. VNIISSOK, Odintsovo district, Moscow region, 143072.
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For citations:
Romanov V.S., Romanova O.V., Tareeva M.M. THE BULBOUS FORMS OF INTERSPECIFIC HYBRIDS OF ALLIUM, THEIR CREATION AND EVALUATION. Vegetable crops of Russia. 2019;(1):42-45. (In Russ.) https://doi.org/10.18619/2072-9146-2019-1-42-45
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