Physiological Parameters of Bread Wheat (Triticum aestivum L.) Genotypes and Association with Yield and Quality under Rainfed Conditions

Year 2021, Volume: 7 Issue: 1, 52 - 60, 01.01.2021

İrfan Öztürk , Remzi Avcı , Turhan Kahraman , Adnan Tülek

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.

Keywords

Bread wheat, genotypes, yield, quality traits, physiological parameters.

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