Evaluation of Wheat Genotypes: Genotype × Environment Interaction and Gge Biplot Analysis

Abstract

This research was carried out to evaluate the grain yield, yield traits and some quality characteristics of 18 bread wheat genotypes in seven different locations in Thrace region using principal component analysis and genotype + genotype × environment interaction (GGE) biplot analysis to determine the genotypes with high yield and desired quality characteristics during the 2016-2017 and 2017-2018 cropping years. The experiments were arranged in a randomized complete block design with four replications. Genotype, environment and genotype × environment interactions were found statistically significant at p≤0.01 level for all investigated traits. Mean values of the genotypes varied between 4841-6807 kg ha-1 for grain yield, 118.6-131.6 days for heading date, 80.4-104.7 cm for plant height, 7.7-10.4 cm for spike length, 16.4-20.3 for number of spikelets per spike, 16.4-20.3 number of grains per spike, 1.49-2.41 g grain weight per spike, 72-77.8 kg hl-1 for test weight and 36.6-45.3 g for thousand kernel weight. Principal component biplot analyzes explained the relationships between the investigated traits and genotypes at a ratio of 60.9%. It was observed that there was a positive and significant relationship between grain yield and test weight, a negative relationship with grain yield and spike length and grain weight per spike. GGE biplot analysis explained 82.65% of the relationship of genotype + genotype x environment for grain yield. According to the GGE biplot analysis two mega environments were determined and Lucilla and Glosa genotypes took place in the biggest mega environment consisted of four environments as superior genotypes.

Exploring Adaptation Abilities of Barley Genotypes in Van Growing Conditions for Biomass and Grain Yield

“…Experiment year had the most effect on the genotype Anka-08 (0.84 cm) and the lowest effect was 0.01 cm from the genotype Akar (Table 7). Our results were similar to Güngör et al (2022) who obtained a significant effect of G, Y, and G x Y interaction on SL. Moreover, the SL value recorded in Mirosavljevıć et al (2016) experiment was close to our findings, 9.9 cm.…”

“…However, their research indicated a significant effect of year and G x Y interaction on SPS. Ahmadi et al (2016) obtained a mean value of 36.79 and Güngör et al (2022) obtained 34.2 to 59.6 SPS, which are close to our findings. PH: plant height, SSM: number of spike per square meter, SL: spike length, NSS: number of spikelets per spike, SPS: number of seeds per spike.…”

“…Differences among the genotypes in both years for NSS was 1.53, the genotypes Calabey, Catin 2000 and Tusunpasa were most affected genotypes by years (4 spikelets), whereas the genotype Burakbey was not affected by years (Table 7). Güngör et al (2022) stated a significant effect of G, Y, and their interaction. The value of NSS they obtained was higher than our result, ranged from 16.4 to 20.3.…”

Relationship Between Physiological Characteristics And Grain Yield of Triticale Genotypes

“…Triticale (xTriticosecale wittmack), grown in many countries of the world, is an artificial cereal obtained by crossing wheat and rye, combining high grain yield and quality characteristics of wheat and tolerance of rye to biotic and abiotic stress factors (Oettler 2005, Güngör et al 2022. Triticale, which is seen as an alternative plant to solve the nutritional problem of the increasing world population is known to be tolerant in conditions where organic matter is low, partially acidic and salty soils, frost and drought problems (Carikci et al 2017, Ozturk et al 2019.…”