E. V. Ageeva, I. E. Likhenko, V. V. Sovetov
Federal Research Center the Institution of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, prosp. Akademika Lavrent’eva, 10, Novosibirsk, 630090, Russian Federation
Abstract. In 2015-2016, under conditions of the Novosibirsk region, 44 samples of spring soft wheat from the Kazakhstan-Siberian nursery of CIMMYT were examined for ecological plasticity and stability. Promising genotypes were selected as sources of economically useful traits for selection. Agro-climatic conditions in the years of the research were favourable, however growing seasons differed in the amount of precipitation. In 2015 there were 288.7 mm of precipitation, in 2016 there were 160 mm. Varieties and lines were divided into 3 groups according to maturity terms: middle-early and early (23 variety samples); mid-season (13 variety samples); middle-late and late ripening (8 variety samples). The assessment of the environmental plasticity of the samples was carried out according to the method developed by Udachin and Golovchenko (1990) with the use of indicators of the intensity and stability of the stability index. Analysis of variance showed that the contribution of variability due to meteorological factor was 6.55%, whereas the genotypic variability and variability caused by the interaction of factors were 47.11% and 15.35%, respectively. In the group of middle-early and early samples the highest yields were observed in Lutestsens 1082 (3.16 t/ha) and Novosibirskaya 18 (3.29 t/ha). In mid-season group the best sample was Lutestsens 186/04-61 (3.35 t/ha). In the group of middle-late and late ripening samples the highest yields were observed in Lutescens 96-12 (3.00 t/ha) and Erythrospermum 85-08 (3.35 t/ha). According to the responsiveness, the samples selected by the yield was divided into 3 groups: Erythrospermum 35, Lutescens 248/05-3, Erythrospermum 85-08 were included in the group of the intensive type; Lutescens 1082, Lutescens 2/03-09-3, Obskaya 2 were included in the group of the semi-intensive type; Niva Priirtyshia, Lutescens 106-0/2003, Novosibirskaya 18, Lutescens 96-12, Lutescens 186/04-61 were included in the group of the extensive type. The high yield, stability and semi-intensive type were combined in genotypes of the Lutescens 1082 (3.16 t/ha) and Obskaya 2 (2.67 t/ha), which may be of interest as sources in breeding for stability in productivity. Erythropermum 35 (2.77 t/ha), Lutescens 248/05-3 (2.86 t/ha), Erythrospermum 85-08 (3.35 t/ha) are of interest for the development of varieties of the intensive type.
Keywords: spring soft wheat; yield; stability; variety.
Author Details: E. V. Ageeva, Cand. Sc. (Agr.), research fellow; I. E. Likhenko, D. Sc. (Agr.), deputy director for science, branch director; V. V. Sovetov, Cand. Sc. (Agr.), senior research fellow.
For citation: Ageeva E. V., Likhenko I. E., Sovetov V. V. Evaluation of Environmental Plasticity of Spring Soft Wheat Samples from the Nursery of the Kazakhstan-Siberian Network of CIMMYT. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 11. Pp. 26–29 (in Russ.). DOI: 10.24411/0235-2451-2018-11106.