PECULIARITIES OF POLLINATION OF SPRING TRITICALE COLLECTION SAMPLES IN THE EASTERN FOREST- STEPPE OF UKRAINE
PECULIARITIES OF POLLINATION OF SPRING TRITICALE COLLECTION SAMPLES IN THE EASTERN FOREST- STEPPE OF UKRAINE
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04.02.2015
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Abstract
The range of
pollen dispersal, reaction to inbreeding, share autogamic flowers in the ear
and spring triticale collection samples selective of fertilization in the
Eastern Steppe of Ukraine was studied. Self-pollination occurs as a result of
the fact that the pollen falls before the start of the open flowering. In
varieties Аіст харківський, Хлібодар харківський, Соловей харківський, Коровай харківський and Легінь харківський, the
self-pollination occurs in 99% among the chasmogamic flowers. Most varieties in
the first generation after self-pollination does not reduce the levels of
agronomic performances. Although in some cases, self-pollination reduces the
performance of agronomic traits. Хлібодар харківський and Kargo
have more range of seed set when the ovary contacted with the pollen of another
genotype than it contact with the own pollen (at 44 % and 54 % respectively).
The most number of pollen in Kharkiv region is transferred to the east and
south away from triticale field. At a distance of 8m from the field more than
1,000 pollen gseeds subsided on area 1 cm2, at a distance
In the forest-steppe of Ukraine the isolation distance between varieties Аіст харківський, Хлібодар харківський, Соловей харківський, Коровай харківський and Легінь харківський not required. Rather it should be minimal, just for protection from mechanical obstruction.
Keywords
spring triticale, variety, pollination, hybridization, pollen, heterosis, isolation distance
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