Abstract:

Bread wheat is grown under a wide range of environmental conditions where climatic factors combined with agronomic inputs impart diverse effects on plant growth. This research was carried out in an experimental area of the Institute in Edirne, Trakya region (Turkey) to compare the yield, quality and some physiological parameters of wheat genotypes. The research was carried out with 11 genotypes in RCBD with 4 replications during 2012-2013 and 2013-2014 growing seasons. Data on grain yield, days to heading, plant height, 1000-kernels weight, tes t weight, biomass, canopy temperature and chlorophyll content were examined. According to the results, significant differences among genotypes in terms of yield, plant height, biomass, chlorophyll content and 1000-kernel weight were found. Genotypes G16-2012 and Tekirdağ had higher grain yield. Tekirdağ had the highes t biomass and Bereket and Selimiye had higher chlorophyll content. The lowes t canopy temperature was measured in genotypes G19-2012, Bereket, Selimiye and Aldane. The highes t 1000-kernels weight and tes t weight were determined in cultivar Pehlivan and Selimiye. A positive correlation was determined between grain yield with biomass and chlorophyll content. There was a negative correlation between canopy temperatures with grain yield. Biomass in genotypes negatively correlated with days of heading, plant height, 1000-kernel weight and tes t weight. A negative relationship was also determined between chlorophyll content and canopy temperature. Due to, the positive relation between grain yield and chlorophyll content and biomass and a negative relation with canopy temperature, physiological parameters could be used in selection in bread wheat for yield potential under rainfed condition.

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