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بررسی پاسخ خصوصیات مورفولوژیک، فیزیولوژیک و بیوشیمیایی گیاه همیشهبهار به پیشتیمار بذری و محلولپاشی 24-اپیبراسینولید | ||
به زراعی کشاورزی | ||
مقاله 2، دوره 18، شماره 3، آذر 1395، صفحه 557-567 اصل مقاله (744.84 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jci.2016.56637 | ||
نویسندگان | ||
زهرا ساردویی کرا1؛ وحید رضا صفاری* 2؛ ایرج توسلیان3 | ||
1دانشجوی کارشناسی ارشد، گروه مهندسی علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان - ایران | ||
2دانشیار گروه مهندسی علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان – ایران | ||
3استادیار گروه مهندسی علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان - ایران | ||
چکیده | ||
به منظور بررسی تأثیر پیشتیمار بذری و محلولپاشی 24-اپی براسینولید بر برخی ویژگیهای مورفولوژیک، فیزیولوژیکی و بیوشیمیایی گیاه همیشه بهار آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار در گلخانه تحقیقاتی دانشگاه شهید باهنر کرمان، در سال 1393 انجام گرفت. تیمارهای آزمایش شامل پیشتیمار بذری و محلولپاشی 24-اپی براسینولید با چهار غلظت (0، 1/0، 1 و 10 میکرومولار) بود. نتایج نشان داد که خصوصیات رشدی و رنگیزههای فتوسنتزی با کاربرد این تنظیمکننده رشد به صورت پیشتیمار و محلولپاشی افزایش یافت. بیشترین وزن تر اندام هوایی، ریشه، وزن تر و خشک گل در تیمار ترکیبی (پیشتیمار 1/0 میکرومولار + محلولپاشی 1/0 میکرومولار) بود که بهترتیب موجب افزایش 79، 33، 28 و 26 درصد نسبت به تیمار شاهد گردید. همچنین، بیشترین میزان رنگیزههای فتوسنتزی در ترکیب مذکور یافت شد، به گونهای که به ترتیب موجب افزایش کلروفیل a، b، کل و کارتنوئید حدود 4/2، 1/3، 58/2 و 7/2 برابر در مقایسه با شاهد گردید. این ترکیب سبب افزایش 35 درصدی پروتئین و 3/18 درصدی قندهای احیا نسبت به شاهد شد. نتایج حاصل از پژوهش حاضر نشان داد که 24-اپی براسینولید میتواند با افزایش وزن گل و اندام هوایی موجب افزایش رشد و نمو و عملکرد بستری گیاه همیشهبهار در فضای سبز گردد. | ||
کلیدواژهها | ||
پروتئین؛ تنظیمکننده رشد؛ خصوصیات رشدی؛ رنگیزههای فتوسنتزی؛ قند احیا | ||
عنوان مقاله [English] | ||
Investigation the response of morphological, physiological and biochemichal attributes of marigold to seed priming and 24-epibrassinolide foliar | ||
نویسندگان [English] | ||
Zahra Sardoei Kara1؛ Vahid Reza Saffari2؛ Iraj Tavassolian3 | ||
1Former M.Sc. Student, Department of Horticultural Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman - Iran | ||
2Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman - Iran | ||
3Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman – Iran | ||
چکیده [English] | ||
To investigate the effects of priming and foliar spray by 24-epibrassinolide (EBR) on some of Marigold morphological, biological and biochemical traits, an experiment was conducted as factorial on completely randomized design with three replications at experimental laboratory of department of horticulture, Shahid Bahonar University of Kerman in 2014. Each of priming and foliar spray of EBR had four concentrations (0, 0.1, 1 and 10 µM). Results showed that growth parameters and photosynthetic pigments increased proportional to the increment of EBR in priming and foliar spray treatments. . The greatest shoot weight (79 percent), root (33 percent), fresh (28 percent) and dry (26 percent) weights of pot marigold compared to control were obtained at priming with 0.1 µM plus foliar spray at 0.1 µM of EBR. Furthermore, the highest chlorophyll a, b, total chlorophyll and carotenoids were found at the same concentration (0.1 µM priming + 0.1 µM foliar spray of EBR) with 2.4, 3.1, 2.6 and 2.7 percent increase respectively. The EBR increased protein and reduced sugar up to (35 percent) and (18.3 percent) compared with control. The results of this experiment indicated that application of EBR can be used to improve the growth and development traits of pot marigold. | ||
کلیدواژهها [English] | ||
Growth regulation, Growth parameters, photosynthetic pigments, protein, reduced sugar | ||
مراجع | ||
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