Variation for seed protein and ODAP content in grass pea (Lathyrus sativus L.) germplasm collections Rajendran Karthika, Sarker Ashutosh1,*, Singh Murari, El-Moneim Ali M. Abd, Nakkoul Hani Biodiversity and Integrated Gene Management Program, International Center for Agricultural Research in the Dry Areas (ICARDA), Aleppo, Syria 1Present address: Regional Coordinator and Food Legume Breeder, South Asia and China Regional Program, International Center for Agricultural Research in the Dry Areas (ICARDA), 2nd Floor, Office Block-C, NASC Complex, DPS Marg, New Delhi, 110 012, India *Corresponding author's e-mail: a.sarker@cgiar.org
Online published on 12 September, 2019. Abstract Development of grass pea (Lathyrus sativus L.) varieties with low seed anti-nutritional factor, β-N-Oxalyl-L-α, β-diaminopropionic acid (ODAP) content but with high seed protein content would be beneficial for human consumption. In this study, a total of 702 germplasm accessions, from the International Center for Agricultural Research in the Dry Areas (ICARDA), Syria, were grouped into seven sets of trials based on their origin, and evaluated for seed ODAP content and seed protein content at two experimental sites, Tel Hadya and Breda over eight years. Significant genotypic differences were found for both the traits in all the germplasm sets except for seed ODAP content in BANG1 and ETH1. The effects associated with genotype × year within locations interactions were larger than genotypic effects for seed protein content in all the germplasm sets except ICARDA and for seed ODAP content in all the sets except ICARDA and PAK. The highest range was found for seed protein content (28.82–30.72%) in ICARDA germplasm set and for seed ODAP content in ETH2 (0.32–0.47%) and PAK (0.38–0.53%) germplasm sets. On the basis of best linear unbiased predictor values, new promising sources with low seed ODAP content such as ILG468, ILG1934, ILG1950 and ILG1951 and for high protein content such as ILG311, ILG670, ILG688, ILG691 and ILG708 and were identified for future grass pea breeding. Top Keywords Grass pea, ODAP, protein, variation, BLUP. Top |