Investigation of Bread Wheat Genotypes with Different Characteristics by Physiological and Quality Traits

Abstract

Instruments measuring spectral reflectance are extensively used by many researchers to determine the relationship between grain yield (GY), quality, and physiological traits of bread wheat genotypes at different developmental stages. This study was carried out under rain-fed conditions in 2019-2020 and 2020-2021 growing seasons in Muş province. The experiment was set up in a randomized block experimental design with 3 replicates. Except to flowering stage chlorophyll content (FSC), statistically significant differences were determined among genotypes at the level of p≤0.01 in all examined characteristics. More explicitly, G6, G8, G10, Müfitbey, Hanlı and Metin in terms of GY; Cemre, Kenanbey and Bezostaja 1 as regards quality traits; Ekiz, G8, and G9 with regard to physiological traits were found as significant genotypes. Biplot model analysis, used to determine genotype-trait and stability relationship, showed that thousand grain weight (TGW) and plant height (PH) were positively associated with both GY and Normalized Difference Vegetation Index (NDVI). GY was found to be related to canopy temperature (CT) and heading time (HT) negatively. Notably, NDVI were positively related to protein ratio. Hanlı, Metin, G6, G8, and G10 were established as the high-yielded stabile genotypes which are least affected from environmental conditions

Relationship Between Physiological Characteristics And Grain Yield of Triticale Genotypes

“…According to the heatmap graph, the features in the 2 nd main cluster are related to GY, especially; NDVI (GS49) and NDVI (GS60) were found to have highest correlation with GY (Figs 1 and 2). It has been confirmed by many researchers that the leaf area reaches the maximum level around the GS60 stage in cereals and that there is a positive correlation between the NDVI measurement values made in this period and the GY (Fischer 1975, Lopresti et al 2015, Karaman et al 2022. Which was confirmed in the present study and additionally, GS49 stage NDVI was also found to be strongly correlated with GY.…”