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EVALUATION OF COLLECTION SAMPLES OF SPRING BARLEY ON RESISTANCE TO ALUMINUM

EVALUATION OF COLLECTION SAMPLES OF SPRING BARLEY ON RESISTANCE TO ALUMINUM

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Abstract

Goal. .Determination of the resistance of spring barley samples of different eco-geographical origin to the content of aluminium on this basis perspective starting material for breeding in conditions of high soil acidity.

Results and discussion. We identified five varieties, which almost did not react on the concentration of 0,74 mM of aluminum ions: index of root length (IDC) is more then 90%. These include the following classes: Biome (Russian Federation); Ambition (Belarus); Luka, Svjatogor and Exotic (Ukraine). At a concentration of 1.5 mM of aluminum ions were detected 4 highly resistant samples with IDC -> 70% - Oberig, Podolsky 14 Sapphire (Ukraine) and Gonor (Belarus). Indicators IDC varied from 38,3 to 77.8%. At a concentration of 2.,26 mM Al3 + high resistance to aluminum ions were found in 2 samples with IDC> 50%. These varieties are Oberig (Ukraine) and Gonor (Belarus). Indicators of IDC ranged from 23.4 to 56.3%.

When studying the reaction of barley plants germs on aluminum ions was found that at low concentrations (0.74 mM) in 19 samples have the highest resistance (IDR -> 100%) in the following varieties: Sapphire, Armax, Extreme, Phoenix, Amator, Adamei, Volodar, Beskid, Agrarii, Luka, Extern, Oksamitovy, Lad (Ukraine); Biome, Sonnet, Siberian avant-garde (Russian Federation); Bursztyn (Belarus); Frida (Sweden); Nutans 39 (Kazakhstan). Is noted the highest resistance (IDR -> 90%) to aluminum ions at a concentration of 1.5 mM of the solution Al3 + in 21 samples. This varieties are - Exotic, Amator, Adam, L49, Picturesque, Luka, Oksamitovy, Syayvo, Agrarian, Extern, Myron, Ilot, Statok (Ukraine); Sonnet, Heather, Omsk 89, Excitement, Siberian avantgard,Kuznetskii (Russia); Astoria (France); Honor and Bursztyn (Belarus). At high concentrations (2.26 mM Al3 +) the highest resistance (IDR -> 80%) was found in only 7 samples. The group classified as highly resistant varieties are: Amator, Adam, Luka, Exotic, Slobidsky (Ukraine); Ubagan (Kazakhstan) and Frida (Sweden).

Conclusions.It is established that the toxic aluminum ions in the juvenile period have a greater impact on the degree of development of roots, than a germ. Is revealed that the concentration of aluminum ions 1.5 mM (pH 3,99) is the best for the differentiation of samples of spring barley. According to the results of testing the total reaction of roots and shoots on alu resistance were found highly resistant varieties of spring barley to this factor during the early stages of plant development. This varieties of Institute of Feed and Agriculture of Podillya NAAS - Sapphire  Obereg; Institute of Plant Breeding named after V. YaYuriev NAAS - Exotic; Biome (Russian Federation) and Gonor (Belarus). These varieties could be used as a initial material for breeding in increased soil acidity conditions.

Keywords

spring barley, selection, variety, aluminum ions, the acidity of the soil, stability