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Information × Registration Number 0215U008249, 0111U002672 , R & D reports Title 3. To develop the methods of selection and on their basis to create high-yielding varieties of alfalfa with high nitrogen-fixing activity and adaptive capacity popup.stage_title Head Tishchenko Olena Dmitrievna, Registration Date 23-12-2015 Organization Institute of irrigation farming NAAS of Ukraine popup.description2 The object of research - a way to create a selection of material and method of selection of alfalfa to elevated levels of symbiotic fixation. Purpose of work - to identify the best examples of alfalfa on a range of different morphobiological and economic characteristics and create a variety of alfalfa with a high level of efficiency and nitrogen fixation. Research methods - laboratory, vegetation-field, the field - for the study of the genetic potential of the feed and seed production, adaptive properties of the samples under irrigation. To create a new breeding material of alfalfa were conducted artificial interbreeding and created two nursery polycross. In the study of the morphological structure of the root system, nitrogen-fixing activity marked the best plants, the population in order to include them in the further selection process. In various nurseries in the feed and seed production marked the best examples. In the control nursery dry matter yields ranged from 1.98 to 2.29 kg/m2 is exceeded the standard variety Unitro to 10.6-27.9%. The competitive strain testing of feed use in the stands of the second year of life formed a high number of dry matter yield in the range 15.9-17.8 t/ha, which is higher than the standard variety Unitro on 6.0-18.7%. In breeding nurseries yield seeds in room ranged from 0.39 to 0.51 t/ha with a yield of standard varieties Unitro 0.28 t/ha. In seed production in competitive strain testing the maximum seed yield (0.30 t/ha) has formed a population of D. M.g., which exceeded the standard variety Unitro 20.0%. During the reporting period (2011-2015 years - three cycles of testing) the best indicators of the main agronomic traits characterized population D. M.g., with dry matter yield average of 15.5 t/ha, the maximum 17.4 t/ha, seed production 0.44-0.53 t/ha, which is called Louise transferred to the state variety trials in 2015. The variety of alfalfa Nadezhda 2 passes state variety trials. Developed by: 1. A method for creating alfalfa breeding material with high nitrogen-fixing capabilities (utility model patent №93462 of 10.10.2014); 2. Method of selection of alfalfa to elevated levels of symbiotic nitrogen fixation (certificate of registration of copyright in a work number 59981 from 04.06.2015); 3. Electronic information reference base "Alfalfa to feed" (certificate of registration of copyright in a work №47261 from 01.10.2013). Total in the Register of Plant Varieties of Ukraine is 9 varieties of alfalfa breeding Institute of irrigated agriculture, which breed in Kherson, Nikolaev, Zaporozhye, Dnepropetrovsk, Donetsk and Lugansk regions, according to the license agreements. In pre-breeding nurseries grown seeds of high reproductions (DB): Zoriana - 0.5 t Unitro - 0.35 t, Nadezda - 0.5 t, Seraphima - 0.1 t. Nurseries primary seed recognized varieties of alfalfa planted in isolated conditions on earth Institute, fields SE RF "Kakhovkskoe", "Kopani", "Askaniiskoe." An analysis of the experimental data confirm that the design and development of effective methods and techniques of alfalfa breeding, creation on their basis of varieties with increased levels of nitrogen-fixing and adaptive capacity, high potential for forage and seed production, carries the elements of scientific novelty and has economic value. An analysis of the experimental data confirm that the design and development of effective methods and techniques of alfalfa breeding, creation on their basis of varieties with increased levels of nitrogen-fixing and adaptive capacity, high potential for forage and seed production, carries the elements of scientific novelty and has economic value. Alfalfa, selection, variety, yield, green mass, dry matter, seeds, root system, nitrogen-fixing ability. Product Description popup.authors Тищенко Андрій Вікторович popup.nrat_date 2020-04-02 Close