SOURCES OF SEED PRODUCTIVITY OF ALFALFA COLLECTION SAMPLES UNDER HIGH SOIL ACIDITY

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19.01.2015

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Abstract

Goal. To select among alfalfa genepool samples a starting material for breeding for improving seed productivity in the conditions of soil medium acidity.

Results and discussion. Among collection samples researched in 2013, 14% have formed an increased seed yield, 13% - were at the level of the standard, the other had a lower productivity.

The samples Kisvardai (Hungary), Deseret (USA), Local (Azerbaijan), Sevan-1 (Russia ), Local (Chile), Moravia (Bulgaria), Seleccion Silfa (Argentina), Local (Brazil), Local (Argentina), Drava (Yugoslavia), Adita (Spain ), Local (Portugal) and Commercial 2-52-75 (UK) have exceeded the standard variety significantly –  for 14-51% (+ 6,12-22,74 g / m²)). In 2014, only 3 samples (3.3% of the total) were significantly higher than the standard variety for seed yield by 10-15% (+ 5,98-8,78 g / m²): Palava (Bulgaria), Drava (Yugoslavia), Local (Ecuador), and 5 (5.4%) were on the level of the standard variety.

Conclusions. Among the alfalfa collection samples, during the study period (2012-2014), were varieties Palava (Bulgaria) and Drava (Yugoslavia) which exceeding the standard variety by 10-35%. Another four samples  exceeded the standard variety by 5-51%  on this trait in the first year of use and is on the equal level with it in the second year - Deseret (UJ0700614, USA), Kisvardai (UJ0700190, Hungary), JJ Paso (UJ0700364, Argentina) and Local (UJ0700367, Azerbaijan). The samples Hemish ( USA), Moravia (Bulgaria) , Summer Lightning (Ukraine), Commercial 2-52-75 (UK), Oaxaca (Mexico), Fergana 700 (Uzbekistan), Avasliol (Argentina) and Local (Tanzania) were characterized by steadily high manifestation on the traits "number of productive shoots", "number of brushes on the shoot", "number of pods", "number of seeds in a pod" and "weight of 1000 seeds".  These samples are recommended for use in a breeding work.

Keywords

alfalfa, genepool samples, breeding, soil acidity, yield capacity for seed