MORE ON COLD RESISTANCE OF BUCKWHEAT VARIETIES UNDERTHE CONDITIONS OF LOW POSITIVE TEMPERATURES

Authors

  • T. A. Anohina The Republican Unitary Enterprise ‘‘Scientific-and-Practical Centre of the National Academy of Sciences of Belarus on agriculture’’, 1, Timiryazeva str. , 222160 Zhodino, Belarus Автор
  • V. N. Kudelko The Republican Unitary Enterprise ‘‘Scientific-and-Practical Centre of the National Academy of Sciences of Belarus on agriculture’’, 1, Timiryazeva str. , 222160 Zhodino, Belarus Автор
  • E. I. Dubovik The Republican Unitary Enterprise ‘‘Scientific-and-Practical Centre of the National Academy of Sciences of Belarus on agriculture’’, 1, Timiryazeva str. , 222160 Zhodino, Belarus Автор
  • E. V. Gladkaya The Republican Unitary Enterprise ‘‘Scientific-and-Practical Centre of the National Academy of Sciences of Belarus on agriculture’’, 1, Timiryazeva str. , 222160 Zhodino, Belarus Автор

Keywords:

buckwheat, cold resistance, low temperature, primary root

Abstract

The results of the response of buckwheat varieties differed by ploidy levels and determination degrees of growth processes to low positive temperatures are presented. It is shown that at +10°C, cold resistance of primary roots of tetraploid forms is 1.5 times higher than that of diploid ones. Changing of plant morphotype of tetraploid varieties influences positively the resistance to cold stress as compared to the diploid varieties.

It is established that laboratory germination at a temperature of +10°C in tetraploid samples at 5.0% was higher compared with diploid and amounted to 39.3%. However, the extent of this variability in the ratio was ranging from 23.0 to
46.5% from 22.0 to 45.0%, respectively. The presence of populations in which germination ability in these conditions above 40.0% allows selection for cold resistance, as in tetraploid and diploid populations.

Table 5. Fig. 2. Ref.: 12 titles.

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Published

2015-09-01

Issue

Выпуск 3. Сентябрь 2015 года

Section

СЕЛЬСКОХОЗЯЙСТВЕННЫЕ НАУКИ Агрономия

License

Copyright (c) 2023 Вестник БарГУ Серия "Биологические науки. Сельскохозяйственные науки"

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