Study of tewenty-six genotypes of cultivated barley(Hodeum Vulgare L.) for salinity tolerance by measurement Na+ and K+ Cations

Journal of plant ecophysiology

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 بهمن 1402

نوع مقاله: Original Article

نویسندگان

Gh.A. Mohammadi^* ؛ Mohamad Raza Bahramjerdi

Department of Agronomy, Jiroft Branch ,Islamic Azad University, Jiroft, Iran

چکیده

Salinity stress is one of the most important abiotic stresses that affects the cultivation of agricultural plants in large areas of the country every year.Twenty-six genotypes of cultivated barley collected from Iran were compared for salt tolerance. Plants were grown in 2Kg pots and subjected to three salinity(NaCl) treatmentsand (1.2 ,8.9 and 16.7ds/m) in a greenhouse at jiroft. The expriment was done in a factorial with complete randomized design and three replications.During vegetative growth shoot Na+ ,K+ contents were measured for all genotypes.Plant traits including the plant height ,length of spikes ,number of spikes per plant ,fresh weight and dry matter and grain yield per plant were also measured.There was a very wide variation in salt tolerance of the genotypes with regard to Na+ and K+ contents.In general tolerant genotypes with better agronomic performance contained lower Na and a higher amount of K to non-tolerant ones and these two parameters were significantly and negatively correlated(r=-0.71,p<0.01).

کلیدواژه‌ها

Barley؛ Salinity؛ Plant traits؛ Grain yield