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اثر اپی‌براسینولید بر پارامترهای جوانه‌زنی، فیزیولوژیکی، رشد و عملکرد میوه گوجه‌فرنگی (Solanum lycopersicum L.) | ||
| زیست شناسی کاربردی | ||
| مقاله 4، دوره 37، شماره 1 - شماره پیاپی 79، خرداد 1403، صفحه 40-55 اصل مقاله (892.58 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22051/jab.2024.42978.1547 | ||
| نویسندگان | ||
| حمیدرضا درفشی1؛ سید محمدجواد آروین2؛ فاطمه نژادعلیمرادی* 3 | ||
| 1کارشناسی ارشد ریا، گروه علوم باغبانی، دانشگاه شهید باهنر کرمان، کرمان، ایران | ||
| 2استاد . گروه علوم باغبانی، دانشگاه شهید باهنر کرمان، کرمان، ایران | ||
| 3استادیار. گروه زیست شناسی، دانشگاه پیام نور، تهران، ایران | ||
| چکیده | ||
| مقدمه: براسینوستروئیدها نقش مهمی در مراحل جوانه‌زنی، رشد نشاء و عملکرد کمی و کیفی محصول دارند. روش‌ها: اثرات پیش‌تیمار بذر گوجه‌فرنگی با اپی‌براسینولید بر شاخص‌های جوانه‌زنی، رشد نشاء در گلخانه و تأثیر محلول‌پاشی گیاه بر رشد بوته و عملکرد در مزرعه انجام شد. تیمارها در مرحله جوانه‌زنی و تولید نشاء شامل خیساندن بذر (پرایمینگ بذر) در آب مقطر (شاهد) و محلول اپی‌براسینولید با غلظت‌های 25/0، 5/0 و 75/0 میکرومولار به مدت 24 ساعت بود. نشاءهای حاصل از پرایمینگ بذر در اپی‌براسینولید (0، 5/0 و 75/0 میکرومولار) به مزرعه منتقل و پس از یک ماه، با غلظت‌های 0، 5/0 و 75/0 میکرومولار محلول‌پاشی شدند. نتایج و بحث: در مقایسه با شاهد، اپی‌براسینولید باعث بهبود درصد و سرعت جوانه‌زنی بذر و تمام پارامترهای فیزیولوژیکی و رشد نشاء گردید و اثر 75/0 میکرومولار شاخص‌تر بود. اثر اپی‌براسینولید بر پارامترهای اندازه‌گیری شده‌ی در مزرعه نیز بسیار چشمگیر بود. گرچه اثر پرایمینگ بذر به‌تنهایی در کلیه‌ی تیمارها نسبت به اثر محلول‌پاشی به‌تنهایی در کلیه‌ی مراحل، به‌طور معنی‌داری بهتر بود ولی ترکیب این دو تیمار در هر دو غلظت 5/0 و 75/0 میکرومولار نسبت به تیمارهای پرایمینگ بذر و یا محلول‌پاشی شاخص‌تر بود. تولید محصول گوجه‌فرنگی از ترکیب دو تیمار در غلظت 5/0 میکرومولار، 74 درصد و در غلظت 75/0 میکرومولار، 145 درصد، در مقایسه با شاهد افزایش نشان داد. | ||
| کلیدواژه‌ها | ||
| کلمات کلیدی: پرایمینگ بذر؛ تنظیم کننده‌ی رشد گیاهی؛ محلول‌پاشی | ||
| عنوان مقاله [English] | ||
| The effect of 24-Epibrassinolide on Germination, Physiological, Growth Parameters and Fruit Yield of Tomato (Solanum lycopersicum L.) | ||
| نویسندگان [English] | ||
| Hamid Reza Darafshi1؛ Seied Mohammad Javad Arvin2؛ Fatemeh Nejad-Alimoradi3 | ||
| 1MSC.Department of Horticulture, College of Agriculture, Shahid Bahonar University, Kerman, Iran | ||
| 2Professor.Department of Horticulture, College of Agriculture, Shahid Bahonar University, Kerman, Iran | ||
| 3Assistant Professor. Department of Biology, Payam Noor University, Tehran, Iran | ||
| چکیده [English] | ||
| Introduction: Brassinosteroids play an important role in plant growth and development. Seedling is one of the most important factors affecting plant establishment and crop production. Methods: The effects of tomato seed pretreatment with 24-Epibrassinolide (EBL) on germination indicators, seedling growth in the greenhouse and the effect of foliar spraying on plant growth and yield in the field were investigated. The treatments in the germination and seedling production stage included seed soaking (priming) in distilled water (control) and EBL solution with concentrations of 0.25, 0.5 and 0.75 μM for 24 hours. Seedlings obtained by seed priming in EBL (0, 0.5 and 0.75 μM) were transferred to the field and after one month, they were sprayed with concentrations of 0, 0.5 and 0.75 μM. Results and discussion: compared to the control, EBL increased the percentage and speed of seed germination and all physiological and growth parameters, and the effect of 0.75 μM was more significant. The effect of EBL on the measured parameters in the field was also very impressive. Although the effect of seed priming alone in all treatments was significantly better than the foliar spraying alone in all stages, but the combination of these two treatments in both concentrations of 0.5 and 0.75 μM was more significant than seed priming or foliar spraying treatments. Tomato production from the combination of seed priming along with foliar spraying increased by 74% at 0.5 μM and 145% at 0.75 μM concentration compared to the control. | ||
| کلیدواژه‌ها [English] | ||
| Key words: Foliar Spraying, Plant growth regulator, Seed Priming | ||
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| مراجع | ||
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