STUDY OF SOURCE MATERIAL FOR EDAPHIC SELECTION OF ALFALFA

Abstract

The study of collectible samples of alfalfa of different ecological and geographical origin on the harvest of dry matter and seeds against the background of increased acidity of soil solution (pH 5.20-5.53) made it possible to highlight the promising beyond these indicators samples that can be used in further breeding work. Comparison of the height of alfalfa plants in the first slope and feed productivity in general for 2019 shows that there is no direct correlation between these values. For example, the Galaxie variety, which was itself visopory and exceeded the standard by 12cm, was only in fourth place for the dry crop, and the Olga and Media varieties, which exceeded the standard by 9cm, were only eighth and seventh in the dry material. However, for the selection of varieties that combine these two traits, donors may be samples that behind the harvest of dry matter and the height of plants for three years of research reliably exceeded the standard: Banat, Vavilovka (Rodnichok), Feraks 58, Galaxie and Ferax 28. Not all samples form the maximum of green mass in the first slope, so there is no definite pattern between the height of plants in the first slope and the collection of dry matter for the entire growing season. The highest yield of dry matter on average for three years of research was obtained from varieties Vavilovka (Rodnichok) (Ukraine) (1.42 kg/m2), Banat (Serbia) (1.36 kg/m2) and Posevnaya 3022 (Uzbekistan) (1.22 kg/m2) at the harvest of the Sinyuha-standard grade 1.08 kg/m2. The best in seed productivity were samples of Jidrune (Lithuania) (31.9 g/m2), Feraks 58 (Canada) (29.9 g/m2), Tibet (Kazakhstan) (28.5 g/m2), Radoslawa (Ukraine) (28.2 g/m2), Kishvardi 27 (Hung.) (27.7 g/m2), Olga (26.5 g/m2) and Vavilovka (Rodnichok) (Ukraine) (26.2 g/m2) with a yield of standart of 23.5 g/m2. Particular attention is paid to the variety Ferax 58 (Canada), which for all the years of research reliably exceeded the standard for seed harvest and was at the level of the standard or exceeded it in the yield of dry matter. Further breeding work will use samples that reliably exceeded the standard for the average of three years of research for the collection of dry matter and the seed crop respectively: Ferax 58 (10% and 27%), Radoslawa (7% and 20%), Olga (11% and 13%), In addition, these samples exceeded the standard for plant sisoin in the first slope in 2019 by 31%, 11%, 8% and 55%, respectively. Key words: alfalfa sowing, selection, sample, variety, dry matter crop, seed harvest.