نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی سابق کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
2 استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
3 استادیار، پژوهشکدۀ بیوتکنولوژی کشاورزی کرج
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Salinity, as an abiotic stress, causes significant losses in horticultural production. Future of grape production, as one of the most important economical horticultural fruits, depends on breeding programs and using salt tolerant rootstocks. The aim of this study was to investigate the salinity tolerance and the distribution of ions associated with salinity in six genotypes and Varieties of grapes (Vitis vinifera L.), namely ‘Shahrudi’, ‘Fakhri Sefid’, ‘Sabz Angur’, ‘Divaneh Kashmar’, SH068 and GT01. The factorial experiment based on Completely Randomized design was carried out with two factors of variety and salinity in three replications. Plants were treated with different salinity levels of less than 2 (1.8-1.9), 4 and 6 dS/m for 40 days. Results showed that increasing the amount of sodium chloride in all genotypes, increased sodium and chloride levels in various organs and Potassium in shoot, while it decreased Potassium concentration in roots, significantly (P<0.05). GT01 presented the lowest concentration of chloride (0.87% and 1.84% of leaf and shoot dry weight, respectively). Overall, it seems that the GT01 and ‘Shahrudi’ had possess the highest and lowest ability in reducing the toxic effects of chloride, respectively. Results of this study confirmed differences between V. vinifera genotypes in response to salt stress.
کلیدواژهها [English]