Diversity of boron-toxicity tolerance in lentil growth and yield

摘要: Boron (B) toxicity is increasingly being recognized as a problem in arid areas of West Asia, where lentil widely grown. This study investigated whether or not: (1) phenotypic variation B-toxicity tolerance exists at the seedling stage lentil, (2) such persists to affect adult performance, and (3) there geographical diversity tolerance. Four experiments were conducted greenhouse. Boric acid was added mixed uniformly into soil-mix prepare high-B soil. Experiment I screened 77 lines randomly selected from ICARDA's international nurseries. Visual growth scores foliar symptom taken 4–5 weeks after sowing, used an indicator for In Experiments II III, four studied beyond stage. IV, 231 accessions seven different countries/regions world screened. There highly significant differences between indicated by their degree symptom, plant growth. The two tolerant sensitive selections showed diverse performance up maturity reflected leaflet loss, dry mass reduction, seed yield when grown accessions. On average, Afghanistan most tolerant, followed those India, Iraq, Syria, Europe, Ethiopia, Nepal.