| Popis: |
In the conditions of the continental climate in the greater territory of the Russian Federation, it is especially important to develop cultivars resistant to abiotic and biotic stress factors, which will allow to obtain grain with the necessary food and feed qualities. The basis for increasing yields laid in the creation and introduction of cultivars with high yield potential and high quality products resistant to the defeat of dangerous diseases and pests. This article presents the results of a long-term study of spring barley collection samples from the gene pool of VIR. The origin of the samples is Russia, Canada, USA, Denmark, Finland, Australia, Ethiopia, UK and Baltic countries. Field experiments were carried out on conventional agricultural techniques in the seven-field rotation. Predecessor-winter wheat. Collection samples seeds were sown in optimal time (I decade of may) on plots of 2 m2, standard Zazersky 85 (Belarus) in each block of 10 samples. Shoots are obtained on the 10-15 th day. The vegetation period of the standard in different years was 81-92 days depending on weather conditions, and collection samples – 65-93 days. The harvest was harvested in the III decade of August. Barley collections were evaluated according to VIR guidelines and other original methods. Biochemical analysis of barley samples were carried out in “Nemchinovka» Federal research centre, in the spectrometer Spectra Star 2400 (USA), the protein content is found through the determination of nitrogen by Kieldalmetod and the conversion factor N x 5,7 and N x 6,25 for malting barley, filminess – according to the method of antispyware crops. The selected samples on precocity, productivity, coarse grain, grain quality, resistance to lodging and diseases are recommended for use in breeding programs of the Federal research center "Nemchinovka "and other breeding centers of the country. |
