Comparison of α, β and total ODAP (β-N-oxalyl-L-ά,βdiamino propionic acid) contents in winter- and springsown grasspea (Lathyrus sativus L.) genotypes

There is a strong relationship between the consumption of grasspea (Lathyrus sativus L.) nd "lathyrism" disease caused by a neurotoxin, ?-N-oxalyl-L-a,?-diaminopropionoc acid called ODAP or BOAA. The objective of this study was to compare ?,? and total ODAP found in grasspea genotypes sown in winter and spring seasons during 2007/08 and grown under rainy conditions in semi-arid regions of Turkey. Biochemical compounds of ?,? and total ODAP were found to be higher in springsown grass peas than those of winter-sown ones. Grasspea 452, 508 and 519 genotypes had lower ?- ODAP levels in winter- and spring-sown.