کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6375212 | 1624717 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancing seed yield and quality of Egyptian clover (Trifolium alexandrinum L.) with foliar application of bio-regulators
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
Egyptian clover (Trifolium alexandrinum L.) is the most important winter legume fodder crop grown under irrigated conditions in Asia. There is a serious shortage of good quality seed of Egyptian clover due to poor seed yield production under hot and dry conditions prevailing during flowering and seed setting. Application of bio-regulators at pre-flowering stage is known to induce more flowering and increase seed production in many crops. A field experiment was conducted for three years (2008-2011) to investigate the effect of foliar application of five bio-regulators applied at different concentrations namely, sodium benzoate (NaC7H5O2) at 100 mg Lâ1 and 150 mg Lâ1, salicylic acid (C6H4(OH)COOH) at 50 mg Lâ1 and 100 mg Lâ1, calcium chloride (CaCl2) at 0.5% and 1.0%, potassium nitrate (KNO3) at 1% and 2% and naphthalene acetic acid (C10H12O2) at 25 mg Lâ1 on yield parameters and seed yield of two cultivars (BL 42 and BL 1) of Egyptian clover. Starting at flower initiation stage, three foliar sprays of each bio-regulator were applied at weekly interval. Cultivar BL 42 recorded significantly higher tillers plantâ1, seeds headâ1, green fodder yield and seed yield than BL 1. Foliar application of bio-regulators at different concentrations increased the seed yield of Egyptian clover by 13.2-32.5% compared to untreated control. Among all the bio-regulators, foliar application of salicylic acid at 50 mg Lâ1 and KNO3 at 2% recorded the maximum heads mâ2, seeds headâ1, 1000-seed weight, seed yield and seed quality (germination percentage and seedling vigor index), which were significantly higher than foliar application of the other bio-regulators (except 1% CaCl2) and the control. Sodium benzoate showed minimum effect on seed yield, but was significantly better than control.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 146, May 2013, Pages 25-30
Journal: Field Crops Research - Volume 146, May 2013, Pages 25-30
نویسندگان
Balwinder Kumar, Yadvinder -Singh, H. Ram, R.S. Sarlach,