The potential of adaptivity of sugar beet sterility maintainers to regulated abiotic factors

  • M. O. Kornieieva
  • P. I. Vakulenko
  • L. S. Andrieieva
  • S. M. Tymchychyn
DOI: https://doi.org/10.7124/FEEO.v27.1311

Abstract

Aim. To determine the expression of the adaptive ability of sterility maintainers of sugar beet under different combination of abiotic factors. Methods. Testing breeding materials against agricultural backgrounds with different combinations of controlled abiotic factors: Normal and Large Growing Space; Normal and Rich Mineral Nutrition Background. Results. Genotypes had a specific interaction with a specific background. The range of variation of the effects of the general adaptive ability of the lines on the yield was -2.9 ... + 3.4 and sugar content -0.6…+0.6. With the increased background of mineral fertilizers and different areas of nutrition, respectively, 11 and 9 sources of valuable genes were selected. The elevated mineral fertilizer background over the usual feeding area was the background that distinguished specific combinations with high SAА effects: Ot1/Ot4 (+2.5), Ot3/Ot4 (+0.9), Ot4/Ot2 (+0.9) and Ot6/Ot5 (0.8). In the extended area, the lines Ot1 and Ot2 combined well with the line Ot 4 (respectively +1.1 and +0.9). Conclusions. O-type lines are characterized by a specific response to the controlled abiotic factors. O-type 4 and O-type 6 lines can be attributed to intensive type. Stable on both grounds include the Ot3 line. For the collection of sugar on the ordinary background of mineral fertilizers GAA were preferred lines Ot6 and Ot4, and on the higher - respectively lines Ot6, Ot3 and Ot4. High differential ability of selective with backgrounds with regulated abiotic factors has been established.

Keywords: sterility maintainers, yield, sugar content, general and specific adaptive ability, the coefficient of plasticity.

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