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Registration Number

0217U003040, 0116U003287 , R & D reports

Title

Set the threshold level of alu stability of promising species and varieties of perennial grasses

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Head

Kovtun Kateryna Petrivnа, Доктор сільськогосподарських наук

Registration Date

16-01-2017

Organization

Institute of feed research and agriculture of Рodillya

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Laboratory screening tests on acid resistance of aluminum in concentrations of 0.25, 0.50, 0.75 and 1.0 g / l aqueous solution. This diagnostic method allows diagnosing genotypes of perennial grasses in the early stages of ontogeny, provides high throughput and low cost. The object of research - aluminum stability evaluation of various kinds of perennial grasses index root length (IRL), the length of shoots index (LSI) in various concentrations AlCl3 0.25, 0.50, 0.75, and 1.0 g / l. The aim is to study the potential of limiting parameters of aluminum resistance perennial grasses, its relationship with resistance to other types of edaphic stressors and ways of implementing the control level of aluminum potential resistance grasses. Methods: Laboratory screening tests on acid resistance of aluminum in concentrations of 0.25, 0.50, 0.75 and 1.0 g / l aqueous solution. This diagnostic method allows diagnosing genotypes of perennial grasses in the early stages of ontogeny. Scientific novelty consists in the fact that for the first time on a large volume of material studied intraspecific polymorphism potential aluminum resistance varieties of perennial grasses: Bromus inermis Leus Mars, Festuca arundinaceae Schreb Lyudmila, Agropyron pectinatum (Bieb) Petrivsky, Elytrigia intermedia Host Horse, Agrostis tenuis Sibth Junona, Fectura pratensis Huds. Dubrava, Lolium perenne L. Ruslana, Lolium multiflorum Lam. Tyversky, Phleum pretense L. Vytava. It presents a complex description of the different species and varieties, registered in Ukraine according to various mechanisms of aluminum resistance. As diagnostic indicators developed and proposed new indices and criteria. Emphasis contrasting resistance to aluminum varieties of perennial grasses, listed in the register of species and varieties of Ukraine, which can be used as a starting material for breeding, seed production, as well as recommended to extend its range in the field and meadow forage production. At the initial stage of development of all grasses are very sensitive to low pH acidity and high concentrations of aluminum - 0.75-1.0 g / l. In determining the embryonic root length index and the exponents of aluminum resistance it found that for Phleum pretense L., Festura pratensis Huds and Agrostis tenuis Sibth thin marginal degree of aluminum resistance is aluminum concentration of 0.75 g / l; for Bromus inermis Leus, Festuca arundinaceae Schreb, Agropyron pectinatum (Bieb), Elytrigia intermedia Host, Lolium perenne L. and Lolium multiflorum Lam. ultimate degree of aluminum resistance occurs when the concentration of AlCl3 - 1.0 g / l. In determining, the length of the shoots of the index noted that perennial grasses react differently to high concentrations of aluminum. The high degree of aluminum stability is set in the Fectura pratensis Huds., Lolium perenne L and Lolium multiflorum Lam.; the average degree of resistance aluminum - have Agropyron pectinatum; low - to Bromus inermis Leus, Festuca arundinaceae Schreb, Phleum pretense L., Elytrigia intermedia Host, Agrostis tenuis Sibth.

Product Description

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Безвугляк Лідія Іванівна
Ксенчіна Олена Миколаївна

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2020-04-02