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بهبود شاخصهای جوانهزنی و فعالیت آنزیمهای آلفا و بتا آمیلاز در بذرهای حاصل از ارقام گلرنگ (Carthamus tinctorius L.) با استفاده از محلولپاشی سیلیسیم و نیکل در خاک شور | ||
| علوم و فناوری بذر ایران | ||
| مقاله 3، دوره 12، شماره 2 - شماره پیاپی 30، تیر 1402، صفحه 13-27 اصل مقاله (880.51 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2022.359985.1452 | ||
| نویسندگان | ||
| محبوبه بهرامی1؛ محمدرحیم اوجی* 2؛ فرهاد مهاجری3؛ محمود دژم3 | ||
| 1دانشجوی دکتری، رشته زراعت، دانشگاه آزاد اسلامی واحد فسا | ||
| 2دانشگاه آزاد واحدفسا گروه کشاورزی | ||
| 3استادیار، گروه کشاورزی ، دانشگاه آزاد اسلامی واحد فسا | ||
| چکیده | ||
| تنش شوری سبب کاهش کیفیت بذر گیاهان میشود، اما غلظتهای مناسب سیلیسیم و نیکل میتواند سبب بهبود شاخصهای جوانهزنی در بذرهای تولید شده گردد. این پژوهش به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی در سال 1398 در شهرستان حاجی آباد، هرمزگان، ایران انجام شد. عامل اول شامل چهار رقم گلرنگ صفه، محلی اصفهان، پدیده و گل‌مهر و عامل دوم هفت سطح محلولپاشی شامل شاهد و محلولپاشی نیکل با غلظت 100، 200 و 300 میلیگرم در لیتر و محلولپاشی سیلیسیم با غلظت 100، 150 و 200 میلیگرم در لیتر بود. نتایج نشان داد که محلولپاشی 100 میلیگرم در لیتر نیکل و 200 میلیگرم در لیتر سیلیسیم به ترتیب سبب افزایش 10 و 18 درصدی پتاسیم گردید. محلولپاشی 200 میلیگرم در لیتر سیلیسیم سبب افزایش 17 و 12 درصدی فعالیت آنزیم آلفا و بتا آمیلاز گردید. از سوی دیگر رقم گل‌مهر و پس از آن رقم صفه درصد و سرعت جوانهزنی و بنیه بذر بیشتری در بذرهای حاصل از گیاه مادری در شرایط تنش شوری نشان دادند، اما رقم پدیده دارای کمترین این صفات بود. محلولپاشی 200 میلیگرم در لیتر سیلیسیم در مقایسه با شاهد به ترتیب سبب افزایش 23 و 25 درصدی بنیه بذر در ارقام صفه و گل‌مهر شد، اما غلظت 300 میلیگرم در لیتر نیکل، سبب کاهش 24 و 19 درصدی در این ارقام شد. در مجموع نتایج این پژوهش تأثیر مثبت محلولپاشی غلظتهای 150 و 200 میلیگرم در لیتر سیلیسیم را در بهبود کیفیت بذرهای ارقام مختلف گلرنگ تحت تنش شوری نشان داد. | ||
| کلیدواژه‌ها | ||
| بنیه بذر؛ درصد جوانهزنی؛ محتوای سدیم؛ هدایت الکتریکی | ||
| عنوان مقاله [English] | ||
| Improvement of alpha- and beta-amylase enzymes activities and germination indices in safflower variety (Carthamus tinctorius L.) seeds by foliar application of silicon and nickel in saline soil | ||
| نویسندگان [English] | ||
| Mahboobe Bahrami1؛ Mohamad Rahim Owji2؛ farhad mohajeri3؛ Mahmood Dejam3 | ||
| 1Ph.D Student Of Agronomy, Fasa Islamic azad University | ||
| 2Islamic azad univecity, Fasa branch, faculty of agriculture | ||
| 3Assistant Proffessor, Department of Agricultur, Islamic azad University Fasa branch | ||
| چکیده [English] | ||
| Salinity stress reduces seed quality, but suitable concentrations of silicon and nickel can improve germination indices in the produced seeds. This study was conducted in a factorial arrangement based on randomized complete block design (RCBD) in 2018 in Haji Abad city, Hormozgan, Iran. The experimental treatments consisted of four safflower varieties as the first factor, including Soffeh, Local Isfahan, Padideh, and Golmehr; and seven spraying levels, including nickel (100, 200 and 300 mg L-1) and silicon (100, 150, and 200 mg L-1) as the second factor. The results demonstrated that the foliar application of 100 mg/l Nickle and 200 mg/l silicon increased potassium by 10% and 18%, respectively. The foliar application of 200 mg/l silicon increased the activity of alpha and beta amylase enzymes by 17% and 12%, respectively. In addition, Golmehr and Safe varieties obtained from a mother plant recorded higher germination and rate percentage, as well as seed vigor, while Padideh variety showed the lowest values of the same traits. The foliar application of 200 mg/l silicon, compared to the control, increased the seed vigor as well as Soffeh and Golmehr cultivars by 23% and 25%, respectively; however, the Nickle concentration of 300 mg/l resulted in a decrease of 24% and 19% in these cultivars.On the other, this trait decreased with increasing nickel concentration significantly. Generally, foliar application of silicon at concentrations of 150 and 200 mg L-1 was found to improve seed quality of different safflower varieties under salinity stress. | ||
| کلیدواژه‌ها [English] | ||
| Electrical conductivity, Germination percentage, Seed vigor, Sodium content | ||
| مراجع | ||
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