نوع مقاله : مقاله پژوهشی
نویسندگان
1 استاد گروه زراعت و پژوهشکده علوم گیاهی، دانشگاه فردوسی مشهد
2 استادیار پژوهشکده علوم گیاهی دانشگاه فردوسی مشهد
3 گروه زراعت، دانشکده کشاورزی دانشگاه فردوسی مشهد
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Identification of salinity tolerant chickpea genotypes, in order to increase soil fertility in saline conditions, can be effective on crop yield stability. This experiment was conducted in hydroponic conditions as a completely randomized design with three replications to evaluate salinity tolerance of 210 Kabuli-type chickpea genotypes during seedling stage at salinity level of 12 dS m-1 NaCl. Results indicated that 57 genotypes showed survival rate of 76-100%, of which 26 genotypes were in post-flowering stage. Plant height and number of lateral branches per plant decreased as survival rate decreased. Percentage of remained leaves was not affected in the survival range of 100-51%, while it decreased in lower survivals (<50%) range. Decreases in membrane stability index were about 8, 19 and 26% in survival ranges of 51-75, 26-50 and 0-25%, respectively compared to survival range of 76-100%. Significant increase in shoot Na+ concentration was only found in survival range of 0-25%. 30, 60 percentage and 1.20 fold increase in K+ concentration and 0.47, 1.12 and 2.78 fold increases in biomass was found in survival ranges of 26-50, 51-75 and 76-100% as compared to survival of 0-25%. Generally, considerable variations were found among chickpea genotypes according to salinity tolerance which could be used in breeding programs of improving salt tolerance in chickpea.
کلیدواژه‌ها [English]
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