Genotype × Environment Interaction for Grain Yield and Its Component Traits in Wheat (Triticum aestivum L.) for Varietal Recommendations in Meghalaya State of India

Aditya Kumar Singh

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Naresh Bahadur Singh

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Narain Singh Azadthakur

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Naorem Janaki Singh

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Thangaswamy Rajesh

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Jai Pal Sharma

Dr Y S Palmar University of Horticulture and Forestry, Solan, Himachal Pradesh, India.

Mallikarjuna P. K

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Ganeshwar Sharma

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Radheshyam Kumawat

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

Konjengbam Noren Singh *

College of Post Graduate Studies in Agricultural Sciences, Central Agricultural University, (Imphal), Umiam-793103, Meghalaya, India.

*Author to whom correspondence should be addressed.


Abstract

The study aims to evaluate the stability of fifteen wheat (Triticum aestivum L.) genotypes under varying sowing dates to identify genotypes with superior grain yield and stability in the North Eastern Region of India. The study also seeks to assess G×E using the Eberhart and Russell model and the AMMI model, to recommend suitable genotypes for cultivation in this region. This is a two-year field study conducted during the rabi seasons of 2017-18 and 2018-19. Fifteen genotypes were sown on six different dates including E1 (27th Oct. 2017-18), E2 (6th Nov. 2017-18), E3 (16th Nov. 2017-18), E4 (27th Oct. 2018-19), E5 (6th Nov. 2018-19), and E6 (16th Nov. 2018-19) to evaluate the stability of these genotypes. This experiment was performed in Randomized Block Design (RBD) with three replications. All genotypes exhibited significant differences across the studied environments. The genotype-environment interaction was significant for most traits except days to 50% crop emergence, test weight, and harvest index. RAJ-3765 and HD-2985 were identified as high-yielding and stable genotypes across all environments, while HD-3118 and HD-2733 performed well in favorable conditions. The AMMI analysis revealed that HD-2985 and RAJ-3765 were the most stable, and WR-544 was the poorest performer. Genotypes RAJ-3765 and HD-2985 showed superior stability and yield across diverse environments, making them suitable for broader cultivation in Meghalaya. HD-2733 and HD-3118 were better suited for favorable environments, while WR-544 was the least adapted. These findings suggest the potential for expanding wheat cultivation in the region using these stable genotypes.

Keywords: Wheat, stability analysis, genotype × environment interaction, AMMI, GGE biplot


How to Cite

Singh, Aditya Kumar, Naresh Bahadur Singh, Narain Singh Azadthakur, Naorem Janaki Singh, Thangaswamy Rajesh, Jai Pal Sharma, Mallikarjuna P. K, Ganeshwar Sharma, Radheshyam Kumawat, and Konjengbam Noren Singh. 2024. “Genotype × Environment Interaction for Grain Yield and Its Component Traits in Wheat (Triticum Aestivum L.) for Varietal Recommendations in Meghalaya State of India”. International Journal of Plant & Soil Science 36 (9):625-40. https://doi.org/10.9734/ijpss/2024/v36i95011.