Dynamics of correlation relationship changes in new winter wheat varieties (Triticum aestivum L.) under the influence of environmental factors in the Southern Forest-Steppe zone of Ukraine
Journal Title: Plant varieties studying and protection - Year 2017, Vol 13, Issue 3
Abstract
Purpose. To establish correlation dependence of influence of such factors as seeding rate, sowing time and seeding methods on yield indicators, as well as individual response of winter wheat varieties to them in case of the ecological system of seed production, that would allow to form elements of intensive varietal technology and obtain the genetically determined productivity potential of the variety in the future. Methods. Weight measuring was used to determine seed yield; the reliability of the experiment results was identified by statistical evaluation, analysis of variance and regression procedure. Results. During the period of investigation, the weather conditions differed significantly both for the temperature regime and the amount of precipitation, but the stability of grain and seed yield over years was the main requirement to varieties, that allowed to study the intergenotypic correlation relationships of crop yield indices and the dynamics of their changes under the effect of ecological factors. In the course of investigation, winter wheat yield indices were fixed annually from 684 plots, which were grouped and analyzed for factors of influence in order to ensure the complete certainty. Conclusions. Variants of investigation were defined for the certified seed yield and environmental factors (sowing time and seeding method, seeding rate), that had strong positive correlation relationships. Seeding rate and seeding method had the greatest impact on 1000 kernel weight. For tillering coefficient, varieties depending on the variant of the investigation had a negative close correlation relationship, which was greatly affected by seeding rate. For correlation relationships, winter wheat varieties ‘Bohdana’ and ‘Slavna’ appeared to be the most stable, ‘Chorniava’ and ‘Astarta’ were the most plastic.
Authors and Affiliations
M. M. Havryliuk, P. Ye. Kalenych
Keywords
Related Articles
- EP ID EP252079
- DOI 10.21498/2518-1017.13.3.2017.110702
- Views 107
- Downloads 0
Importance of Triticosecale Wittmack ex A.Camus varieties in the formation of species diversity of agro-ecosystems
Purpose. To find out the ecological importance of winter triticale varieties in the formation of species diversity of agro-ecosystems. Methods. Field, laboratoryones and mathematical and statistical analysis. Results. Th...
Characteristics of new varieties of tomato (Solanum lycopersicum L.)
Purpose. To analyse biochemical and economic characters of new tomato varieties adapted to the conditions of the south of Ukraine. Methods. Field study, laboratory testing, statistical analysis. Results. Intraspecific...
Identification of field pea gene bank samples by component characteristics in relation to the breeding of plant varieties of various directions of economical use
Assumption is made that identification of valuable genotypes is possible in specific stability points of phase-parametric systems, that is, when the effect of dynamism acquires gradient and discrete anisotropic compositi...
Bioecological peculiarities of mid-ripening varieties of strawberry (Fragaria ananassa Duch.) in the northern part of the Forest-Steppe zone of Ukraine
Purpose. Improvement of a range of strawberry varieties based on comprehensive study and introduction of new Ukrainian and West European cultivars. Methods. Cultivars and elite forms were studied using the methods of pr...
The morphometric parameters of seeds of genus Echinacea Moench representatives and their association with agrometeorological factors
Purpose. To study morphometric parameters of fruits (cypselae) of purple coneflower (Echinacea purpurea (L.) Moench) of ‘Zirka Mykoly Vavylova’ cultivar and pale coneflower (Echinacea pallida (Nutt.) Nutt) of ‘Krasunia P...