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GENOTYPE X ENVIRONMENT INTERACTION AND AGRONOMIC PERFORMANCE OF WINTER WHEAT CULTIVARS GROWN IN SEMIARID CONDITIONS
Velimir Mladenov
orcid.org/0000-0002-2182-6579
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Borislav Banjac
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Miodrag Dimitrijević
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Sofija Petrović
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Dragana Latković
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Goran Jaćimović
; University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
Bojan Jocković
; Institute of Field and Vegetable Crops, Novi Sad, Serbia
Sažetak
Multi-environmental trials (METs) are a crucial step in breeding programs for most of major crops around the world. The presence of genotype x environment interaction is universal in multi-environmental trials, it cannot be avoided and has to be clearly explained. The aim of the present study was phenotyping of current germplasm and to assess several agronomic and morphological traits, by multivariate analyses, stability for agronomic traits of high importance for further conventional breeding in wheat genotypes and to survey the shift of key traits. Grain samples were obtained from ten winter wheat cultivars grown in 2009/10, 2010/11, 2011/12 at three locations in the South Pannonian Basin: Novi Sad, Sremska Mitrovica and Pančevo. AMMI analysis of variance for yield showed that the total sum of squares attributed to the impact of environments was 76.50%, GEI was represented with 9.72% and the effect of genotype was 7.00%, while the variation of test weight was mainly
determined by the influence of environment (66.41%), GEI (15.63%) and genotype (6.47%). The results of this study indicate the importance of METs and suggest that using larger number of wheat characteristics offers more valid answers on the performance of individual genotypes in semi-arid conditions.
Ključne riječi
AMMI model; multi-environmental trials; stability; semiarid conditions; yield; winter wheat
Hrčak ID:
180191
URI
Datum izdavanja:
20.4.2017.
Posjeta: 1.470 *