Spring barley integrated testing for yielding and stability
Journal Title: Plant varieties studying and protection - Year 2017, Vol 13, Issue 4
Abstract
Purpose. To define the regularities of yield level for spring barley varieties in “genotype–environment” interaction when testing in different ecological zones environments of Ukraine and identify genotypes with increased adaptive potential. Methods. As object of the research there were 36 spring barley varieties of domestic and foreign breeding. Varieties were tested at the V. M. Remeslo Myronivka Institute of Wheat of NAAS (MIW) (the Central Forest-Steppe) in 2015–2017, at Nosivka Plant Breeding Experimental Station of the V. M. Remeslo Myronivka Institute of Wheat of NAAS (NPBES) (Polissia) in 2016–2017 and at Kirovohrad State Agricultural Experimental Station of NAAS (KSAES) (the Northern Steppe) in 2016–2017. During three years of the investigation (2015–2017), the results of varieties testing in seven environments have been obtained. Plots with discount area of 10 m2 were laid out with three replications by the method of full randomized blocks, in accordance with conventional methods. Statistical analysis of experimental data was performed using Excel 2010 and Statistica 8.0 software. To interpret visually “genotype-environment” interaction the GGE biplot model was used. Results. The ANOVA of yield data showed reliable contributions into the total variation of environment (64.64%), genotype (14.90%), and their interaction (20.46%). Environmental conditions of MIW in 2016 were characterized with the highest discriminative fineness (informativeness), while KSAES in 2017 were characterized with the lowest one. Environmental conditions of both MIW in 2017 and NPBES in 2016 were the most representative; conditions of KSAES in 2016 were the least representative. The conditions of MIW and KSSGDS in 2016 were the most distant against each other. The GGE biplot “who-won-where” vizualization allowed to divide the environments in two sectors: the first – conditions of MIW 2015–2017 and NPBES 2016–2017, the second – conditions of KSAES 2016–2017. The variety ‘MIP Myrnyi’ had a significant advantage in the first sector, while the variety ‘Skarb’ had it in the second one. The varieties of spring barley ‘MIP Myrnyi’, ‘MIP Bohun’, ‘Talisman Myronivskyi’, ‘MIP Azart’, ‘Dokaz’, ‘Pan’ have been differentiated and defined as those with the optimal level of yield in environments being the closest to hypothetical “ideal” genotype of the GGE biplot model. Conclusions. Modelling of integrated variety testing by combining years being contrast in hydrothermal regime and different ecological conditions with interpretation of the investigation results using modern statistical and graphical method contributes to more detailed characterization of the “genotype–environment” interaction, ranking and identifying of prospecting genotypes.
Authors and Affiliations
O. A. Demydov, V. M. Hudzenko, M. O. Sardak, V. A. Ishchenko, I. V. Smulska, S. S. Koliadenko
Response of new varieties of winter wheat (Triticum aestivum L.) to the impact of environmental factors under the conditions of the Southern Forest-Steppe zone of Ukraine
Purpose. To define the level of impact of such factors as rate, time and methods of sowing on seed productivity and certified seeds, and the individual response of winter wheat varieties to these factors if used the ecol...
Formation of the productivity of winter wheat varieties with various degree of resistance under the influence of fungal diseases
Purpose. To investigate the effect of fungal diseases on the productivity of winter wheat varieties of various resistance using artificial infection backgrounds. Methods. Field one – assessment of the resistance of var...
Varietal features of oil linseed yield formation depending on sowing rate and inter-row spacing in the conditions of Right-bank Forest-Steppe zone of Ukraine
Purpose. To establish the varietal features of the generative organs and plant morphological parts development; oil linseed yield formation during the cultivation with different sowing density, which is regulated by the...
Indices for grain morphometric assessment of hexaploid wheat species
Purpose. The article presents approaches to the effective use of the indices for grain morphometric assessment of hexaploid wheat species. The purpose of our research was to study the morphometric parameters (length, wid...
The results of selection of mixed germ-plasm corn (Zea mays L.) among self-pollinated families S4 for the duration of the «sprouting–flowering of 50% of ears» period
The results of evaluation and selection of breeding material of mixed germ-plasm corn for early ripeness among self-pollinated families S4 by the length of the «sprouting–flowering of 50% of ears» period are given. A sig...