V.A. Sapega
Tyumen Industrial University, st. Volodarskogo, 38, Tyumen, 625000, Russian Federation
Abstract. The purpose of the research was the integrated assessment of productivity, parameters of ecological adaptability of spring wheat varieties and their correlation dependence under conditions of the northern forest-steppe of Tyumen region in 2012–2014. Four middle-early and fourteen mid-ripening varieties of spring wheat served as a material for the research. The assessment of the potential of productivity and adaptability of varieties was determined by the method of A.V. Zhivotkov, realization of productivity potential – by the method of E.D. Nettevich, and their plasticity and stability – by the method of S.A. Eberhart, W.A. Russell. The genotypic effect of varieties was determined according to methodical instructions for ecological variety testing of grain crops. The highest adaptability was performed by Novosibirskaya 15 (114.6%, middle-early) and Tobolskaya (138.7%, mid-ripening) varieties; and the highest potential of productivity was noted for Novosibirskaya 31 (114.3%, middle-early) and Melodia (112.8%, mid-ripening) varieties. On average over 2012–2014 according to the productivity Novosibirskaya 31 was the best variety in the group of middle-early ones (3.11 t/ha), whereas Riks and Melodia were the best among mid-ripening varieties (3.47 and 3.83 t/ha, respectively). Novosibirskaya 29 (S sub(i)sup(2) = 1.42) and Novosibirskaya 31 (S sub(i)sup(2) = 2.18) were characterized by the greatest stability in the group of middle-early varieties, and Kazakhstanskaya 10 (S sub(i)sup(2) = 0.84) and Lutescens 70 (S sub(i)sup(2) = 1.21) – in the group of mid-ripening varieties. The complex assessment of productivity, parameters of ecological adaptability of spring wheat varieties showed that Novosibirskaya 29 was the best middle-early variety under conditions of the northern forest-steppe zone, Chernyava 13 and Obskaya 2 were the best in the group of mid-ripening varieties. The strongest positive correlation dependence was revealed between the range of productivity and plasticity (r = 0.73 ± 0.17), and the strongest negative one – between the range of productivity and realization of its potential, as well as between realization of productivity potential and plasticity (r = -0.62 ± 0.20).
Keywords: varieties of spring wheat, productivity, realization of productivity potential, plasticity, stability, genotypic effect.
Author Details: V.A. Sapega, D. Sc. (Agr.), prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Sapega V.A. Productivity, Realization of Potential of Spring Wheat Varieties and Their Adaptability. Dostizheniya nauki i tekhniki APK. 2017. Vol. 31. No. 10. Pp. 49-52 (in Russ.).