Uluslararası Tarım Araştırmalarında Yenilikçi Yaklaşımlar Dergisi
Yazarlar: İrfan Öztürk
Konular:-
DOI:10.29329/ijiaar.2020.320.9
Anahtar Kelimeler:Barley,Genotypes,Yield,Yield stability,Physiological parameters
Özet: The development of barley (Hordeum vulgare) genotypes over its life cycle depend on a number of environmental abiotic stress factors. Grain losses are often caused by high or low temperatures, drought, and such soil structure. The research was carried out to investigate the yield, stability, some quality, and physiological characteristics of some advanced barley genotypes under rainfed conditions. This research was established with 25 genotypes, in randomized complete blocks design with four replications at 3 locations in 2012-2013 growing years. Grain yield, plant height, days of heading, biomass, canopy temperature, 1000-kernels weight, and test weight was investigated. There were significant differences among the genotypes. Based on location, the highest yield was determined in Tekirdağ location. Cultivar Harman had higher yield potential. The highest biomass was measured for cultivars Harman and Lord and the lowest canopy temperature was measured for the G21 line. Earliness in terms of growing forage crops in the same growing year and short plant height for lodging resistance are very important characters in the Trakya region. G11 and G16 were early, and G6, G7, and G16 were the shortest genotypes. The highest 1000 kernels weight was measured in G3, and test weight in G19 lines. It was determined that cultivar Harman and 5 lines G7, G9, G22, G24, and G25 were well adapted to all environmental conditions. Genotypes Sladoran, G18, G3, and G8 were well adapted to fertile environmental conditions. Canopy temperature negatively affected and reduced grain yield, biomass, test weight, 1000-kernel weight, and protein ratio under rainfed conditions. The result of the study suggested that canopy temperature could be used in a barley breeding program for physiological parameters under rainfed conditions.