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کارایی سویه‌های سودوموناس در تعدیل تنش خشکی روی پارامترهای رشدی و فیزیولوژی ارقام پسته | ||
| کنترل بیولوژیک آفات و بیماری های گیاهی | ||
| مقاله 4، دوره 5، شماره 2، آذر 1395، صفحه 163-176 اصل مقاله (583.35 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jbioc.2016.60151 | ||
| نویسندگان | ||
| فریبا فتحی1؛ روح الله صابری ریسه* 2؛ محمد مرادی3 | ||
| 1دانشجوی کارشناسی ارشد رشته بیماری شناسی گیاهی دانشکده کشاورزی دانشگاه ولی عصر رفسنجان | ||
| 2دانشیار، گروه گیاهپزشکی، دانشکده کشاورزی، دانشگاه ولی عصر رفسنجان | ||
| 3استادیار پژوهشکده پسته، موسسه تحقیقات علوم باغبانی، سازمان تحقیقات، آموزش و ترویج کشاورزی رفسنجان، ایران | ||
| چکیده | ||
| استفاده از باکتری‌های پروبیوتیک گیاهی با قابلیت القای تحمل به خشکی در گیاهان یکی از رهیافت‌های مؤثر جهت کاهش خسارت تنش خشکی می‌باشد. در این تحقیق تأثیر چهار استرین باکتریایی از جنس سودوموناس (T17-4، VUPF5، 428، CHA0) روی مقاومت نهال‌های پسته دو رقم سرخس و بادامی ریز زرند به تنش خشکی مورد بررسی قرار گرفت. پژوهش در قالب یک طرح کاملا تصادفی با سه تکرار در گلخانه تحقیقاتی به اجرا درآمد. جهت بررسی کارایی باکتری‌ها در کاهش تنش خشکی، پارامترهایی همچون پرولین، قند، کلروفیل a، کلروفیل b، عناصر روی، آهن و فسفر ریشه و ساقه و فاکتورهای رشدی گیاه اندازه‌گیری شدند. نتایج نشان داد که تنش خشکی سبب افزایش میزان پرولین و قند هم در نهال‌های مایه‌زنی شده با جدایه‌های باکتریایی و هم در نهال‌های بدون مایه‌زنی گردید با این تفاوت که این افزایش در نهال‌های مایه‌زنی شده بیشتر بود. همچنین تنش خشکی موجب کاهش میزان رنگیزه‌های گیاهی، عناصر و فاکتورهای رشدی گیاه گردید اما این کاهش در گیاهان مایه‌زنی شده کمتر بود. نتایج همچنین نشان داد که ارقام مختلف پاسخ متفاوتی به تنش خشکی نشان دادند به‌طوری که رقم سرخس نسبت به رقم بادامی از حساسیت بالاتری برخوردار بود. | ||
| کلیدواژه‌ها | ||
| استرین‌های سودوموناس؛ بادامی ریز زرند؛ پسته؛ تنش خشکی؛ سرخس | ||
| عنوان مقاله [English] | ||
| Efficacy of Pseudomonas strains on moderate drought stress on growth and physiological characteristics of pistachio cultivars | ||
| نویسندگان [English] | ||
| Fariba Fathi1؛ Roohallah Saberi-Riseh2؛ Mohammad Moradi3 | ||
| 1M.Sc. Student of Plant Protection, Vali-e-Asr university of Rafsanjan, Iran | ||
| 2Associate Professor Plant Protection Department of Vali-e-Asr university of Rafsanjan, Iran | ||
| 3Assistant Professor, Pistachio Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Rafsanjan, Iran | ||
| چکیده [English] | ||
| Using plant probiotic bacteria, which can induce systemic tolerance in plants, is one of the most important strategy to reduce the damage of drought stress in plants. In this study the effect of four fluorescent strains (T17-4, VUPF5, 428, CHA0) was investigated on resistance of two pistachio cultivars (Badami-Rize-Zarand and Sarakhs) against the drought stress. A completely randomized design was applied with a factorial arrangement at three replications in a greenhouse trial. In order to evaluate the effects of bacteria on reduction the effects of drought stress, some parameters such as prolin, soluble sugars, chlorophyll a, chlorophyll b, P, Zn, Fe content of shoot and root were measured. The results showed that drought stress increased the prolin and soluble sugars content in both inoculated and non-inoculated seedlings, although the content of prolin and soluble sugars in inoculated seedlings were higher than non-inoculated seedlings. The result also indicated that the drought stress reduces growth parameters, photosynthesis pigments and mineral element content in both cultivars under inoculated and non-inoculated conditions. The most reduction of these traits were recorded in non-inoculated seedlings. The cultivars of pistachio showed different responses to drought stress, so that sarakhs cultivar was recognized more sensitive to drought stress than badami-Rize-zarand cultivar. | ||
| کلیدواژه‌ها [English] | ||
| Drought stress, Badami-Rize-zarand, Pistachio, Pseudomonas strains, Sarakhs | ||
| مراجع | ||
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