کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10840940 | 1067872 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of drought and salinity on carbon isotope discrimination in wheat cultivars
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Four drought- and salt-tolerant wheat cultivars were grown in pots in a naturally lit glasshouse with two watering regimes (30 and 75% plant available water) and three salinity levels (8, 12 and 16 dS/m), a zero salinity treatment served as control. Carbon isotope discrimination (Î) varied significantly (P < 0.001) among cultivars under well-watered and water-stressed conditions. Soil salinity produced a linear and significant (P < 0.001) decrease in Î of all cultivars. Salinity Ã cultivars interaction for Î was also significant (P < 0.05) under both watering regimes. The correlation between Î of leaves and HI was positive (r = 0.61, P < 0.05) for salt-tolerant cultivars and negative (r = â0.63, P < 0.05) for drought-tolerant cultivars under well-watered conditions. Salt-tolerant cultivars showed a significant positive correlation (r = 0.71, P < 0.05) between HI and Î of shoots under moisture-deficit conditions. Preliminary data indicated that measurements of Î may prove to be a useful trait for selecting wheat cultivars with improved harvest index in salt-affected areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Science - Volume 168, Issue 4, April 2005, Pages 901-909
Journal: Plant Science - Volume 168, Issue 4, April 2005, Pages 901-909
نویسندگان
Robina Shaheen, Rebecca C. Hood-Nowotny,