کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5745444 1618669 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original articleEffect of 28-homobrassinolide on the performance of sensitive and resistant varieties of Vigna radiata
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بوم شناسی
پیش نمایش صفحه اول مقاله
Original articleEffect of 28-homobrassinolide on the performance of sensitive and resistant varieties of Vigna radiata
چکیده انگلیسی

A study was undertaken to examine the morpho-physiological alterations under different concentrations of 28-homobrassinolide (HBL) in two contrasting varieties of Vigna radiata. Sterilized seeds of V. radiata (T-44 and PDM-139) were inoculated with specific Rhizobium and allowed to grow and then 14 day old seedlings were exposed to different concentrations (0, 10−10, 10−8, or 10−6 M) of HBL and allowed to grow under natural environmental conditions. At the 15 and 21 day stage, plants were harvested to evaluate various parameters. Results clearly indicated that growth bio-markers, accumulation of proline and activities of various antioxidant enzymes increased significantly in T-44 at a later stage of growth in the presence of HBL whereas, 10−8 M showed the most promising response. It is concluded that HBL modifies the physiological functions and biochemical metabolism of V. radiata by increasing photosynthetic efficiency at an early stage of growth and antioxidant system in T-44 at a later stage of plant growth that are manifested in growth at later stages. It is believed that increased accumulation of proline and enhanced antioxidant system provide strength to the plants to withstand environmental cues.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Saudi Journal of Biological Sciences - Volume 23, Issue 6, November 2016, Pages 698-705
نویسندگان
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