Spatial Variation and Adaptive Responses of Tall‐Type Field Peas (<i>Pisum sativum</i> L.) Across Indian Subcontinent
Understanding crop performance across diverse agro-ecologies is crucial for developing region-specific breeding strategies. This multi-location study examined the impact of diverse environments on crop eco-phenology and genotype-by-environment interactions (GEI) of tall-type field pea breeding lines. Empirical methods were employed to identify strategic locations that support higher yields and unique genotypic traits. The results revealed significant variations across locations, with coefficients of variation for key traits as follows: days to flowering (31%), days to maturity (20%), reproductive period (19%), yield (35%), and seed weight (31%). Environmental component accounted for the largest yield variation (78%), followed by GEI (13%). Correlation analysis indicated a significant influence of both temperature extremes, particularly maximum temperature during flowering, on crop yields. Higher minimum temperatures during flowering and reproductive period were associated with reduced yields, while extended crop duration in cooler regions also negatively impacted yields. A significant quadratic relationship between seed weight and yield underscored the importance of seed weight as a yield-stabilising trait. GGE-biplot analysis identified four mega-environments, and designated Faizabad, Pantnagar, Varanasi, and Kota as ideal testing sites for selecting genotypes with broader adaptability. These findings provide valuable insights for redesigning field pea breeding programmes at the national level.
Authors
- Jitendra Kumar (ORCID: https://orcid.org/0000-0003-1144-1111)
- Sunil Kumar Nair (ORCID: https://orcid.org/0000-0003-1662-9439)
- Geeta Rai
- Parvaze A. Sofi (ORCID: https://orcid.org/0000-0001-8283-5420)
- Ajaz A. Lone (ORCID: https://orcid.org/0000-0002-6466-6907)
- R. K. Mishra (ORCID: https://orcid.org/0000-0003-4188-4722)
- Amrit Lamichaney (ORCID: https://orcid.org/0000-0003-0345-5863)
- Mangla Parikh
- G. P. Dixit (ORCID: https://orcid.org/0000-0002-5820-3818)
- Khajan Singh
- C. S. Mahto
- Hironya Kumar Borah
- Rajesh Kumar Yadav (ORCID: https://orcid.org/0000-0001-7571-417X)
- Shailesh Tripathi (ORCID: https://orcid.org/0000-0001-5142-3781)
- Vijay Kumar Sharma (ORCID: https://orcid.org/0000-0002-2330-5830)
- Sanjeev Gupta
- Debjyoti Sen Gupta (ORCID: https://orcid.org/0000-0002-0195-6181)
- Ashok Kumar Saxena (ORCID: https://orcid.org/0000-0003-1251-9320)
- Kali Krishna Hazra (ORCID: https://orcid.org/0000-0002-7646-1087)
- Smita Tiwari (ORCID: https://orcid.org/0000-0002-5671-9343)
- Deepak Singh (ORCID: https://orcid.org/0000-0002-8111-096X)
- Ashok Kumar Parihar (ORCID: https://orcid.org/0000-0003-4239-8208)
- Ajay Singh (ORCID: https://orcid.org/0000-0003-2933-4058)
- Sankar Prasad Das
- Sudhakar Prasad Mishra
Institutions
- Indian Agricultural Statistics Research Institute (IN)
- Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (IN)
- Indian Council of Agricultural Research (IN)
- University of Kota (IN)
- Birsa Agricultural University (IN)
- Indira Gandhi Agricultural University (IN)
- Chaudhary Charan Singh Haryana Agricultural University (IN)
- Indian Institute of Pulses Research (IN)
- Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya (IN)
- Jawaharlal Nehru Krishi Vishwa Vidyalaya (IN)
- ICAR Research Complex for NEH Region (IN)
- Chandra Shekhar Azad University of Agriculture and Technology (IN)
Publication Details
- Journal
- Plant Cell & Environment
- Published
- 2025-03-04
- DOI
- https://doi.org/10.1111/pce.15450
- Citations
- 3
- Primary Topic
- Genetic and Environmental Crop Studies
- Type
- article
- Field-Weighted Citation Impact
- 5.25