Competitive testing of varieties of barley in the conditions of the Udmurt Republic

In the Udmurt Republic among the grain crops, a considerable area of cultivation is barley. This culture is an important food, fodder and technical crop. The analysis of the response of introduced and new varieties of barley for grain yield, determined by their plasticity (bi) and stability (Sd2) calculated the coefficient of adaptability (CA), according to variety trials for 2014-2016. The soil of experimental plot of the Udmurt state University agricultural research Institute - loamy sod-podzolic, the humus content is medium to high, phosphorus very high exchangeable potassium is medium to very high. Acidity pH of 5.3 to 5.5. In early ripening group the Wonderful grade exceeded 14% of the standard Nevan (1,95 t/ha). In middle-ripening group was allocated sort Memory Chepeleva - 2.45 t/ha, exceeding the yield level grade Raushan 17%. All the studied varieties formed grain with good food quality. In terms of plasticity and stability were found in the high-intensity grade Bionic and the memory of the Homeland they are the most demanding in terms of cultivation bi = of 2.04 and 2.85, and Sd2 = 0.53. Over the years research high coefficient of adaptability (CA) identified in the cultivars Rodnik prikamya, Velez and Memory Chepeleva K. A. = 1.18-1.29.