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تأثیر محلول‌پاشی هورمون اکسین در دو رقم گلرنگ آبی در شرایط تنش خشکی | ||
| به زراعی کشاورزی | ||
| مقاله 8، دوره 24، شماره 2، تیر 1401، صفحه 365-378 اصل مقاله (833.91 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jci.2021.316903.2500 | ||
| نویسندگان | ||
| سید بصیر موسوی1؛ سعید سیف زاده2؛ حمید جباری* 3؛ علیرضا ولدآبادی2؛ اسماعیل حدیدی ماسوله4 | ||
| 1دانشجوی دکتری، گروه زراعت، واحد تاکستان، دانشگاه آزاد اسلامی، تاکستان، ایران. | ||
| 2دانشیار، گروه زراعت، واحد تاکستان، دانشگاه آزاد اسلامی، تاکستان، ایران. | ||
| 3استادیار، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 4استادیار، گروه زراعت، واحد تاکستان، دانشگاه آزاد اسلامی، تاکستان، ایران. | ||
| چکیده | ||
| این پژوهش بهمنظور بررسی واکنش دو رقم گلرنگ آبی به شرایط تنش خشکی و محلول‌پاشی هورمون اکسین، به‌صورت آزمایش اسپلیت پلات فاکتوریل در قالب طرح بلوک‌های کامل تصادفی در سه تکرار طی دو سال زراعی 97-1396 و 98-1397 در مزرعه تحقیقاتی مؤسسه تحقیقات اصلاح و تهیه نهال و بذر کرج اجرا شد. در این آزمایش آبیاری در دو سطح بدون تنش خشکی (شاهد) و قطع آبیاری از مرحله آغاز پرشدن دانه در کرتهای اصلی و ارقام پدیده و گلدشت و محلول‌پاشی هورمون اکسین در دو سطح محلول‌پاشی با آب مقطر (شاهد) و کاربرد هورمون اکسین در یک مرحله (اواسط گل‌دهی) به غلظت 3000 میلیگرم در لیتر (30 پیپیام) در کرتهای فرعی به‌صورت فاکتوریل ارزیابی شدند. در شرایط محلول‌پاشی هورمون اکسین و محلول‌پاشی با آب مقطر (شاهد) در هر دو تیمار آبیاری معمول و تنش خشکی، بیش‌ترین تعداد کل طبق در بوته در رقم گلدشت بهترتیب بهمیزان 3/26، 3/24 و بیش‌ترین تعداد کل دانه در بوته در رقم گلدشت بهترتیب بهمیزان 708 و 592 مشاهده شد. محلول‌پاشی اکسین و آبیاری تأثیر معنی‌داری بر درصد روغن دانه نداشت. رقم گلدشت به‌دلیل دمای طبق کم‌تر، غلظت کربوهیدرات محلول برگ بیش‌تر، تعداد طبق و وزن هزاردانه بیش‌تر عملکرد دانه بالاتری در مقایسه با رقم پدیده داشت. نتایج کلی نشان داد که اثر تیمارهای موردبررسی تحت تأثیر سال قرار گرفت و با وجود تأثیر مثبت محلول‌پاشی هورمون اکسین بر برخی از اجزای عملکرد دانه گلرنگ در هر دو سطح آبیاری، محلول‌پاشی هورمون اکسین در مرحله اواسط گل‌دهی دانه تأثیر معنی‌داری بر عملکرد دانه نداشت. | ||
| کلیدواژه‌ها | ||
| دمای طبق؛ شاخص سطح برگ؛ عملکرد دانه؛ قطع آبیاری؛ وزن هزار دانه | ||
| عنوان مقاله [English] | ||
| The Effect of Auxin Foliar Application in Two Irrigated Safflower Cultivars under Drought Stress | ||
| نویسندگان [English] | ||
| Seyed Basir Mousavi1؛ Saeed Sayfzade2؛ Hamid Jabbari3؛ alireza valadabadi2؛ Esmaeil Hadidi Masouleh4 | ||
| 1Ph.D. Student, Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran. | ||
| 2Associate Professor, Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran. | ||
| 3Assistant Professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran. | ||
| 4Assistant Professor, Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran. | ||
| چکیده [English] | ||
| The current study tries to evaluate the effect of auxin foliar application in two safflower cultivars under drought stress condition, using a factorial split plot experiment with randomized complete block design in two years (2017-2018 and 2018-2019). It has been conducted at research field of Seed and Plant Improvement Research Institute in Karaj and evaluates irrigation at two levels including normal irrigation (control) and interruption of irrigation from the beginning of grain filling stage (drought) in the main plots and cultivars of Padideh and Goldasht and auxin foliar application in two levels of non-foliar application of distilled water (control) and foliar application of auxin (indole acetic acid) in one step (mid-flowering) at a concentration of 3000 mg.l-1 (30 ppm) in sub-plots as a factorial. In the auxin foliar application and non-foliar application (control) in both normal irrigation and drought stress treatments, the highest total number of heads per plant in Goldasht cultivar have been 26.3 and 24.3 respectively, and the highest grain number per plant observed in Goldasht cultivar have been at 708 and 592, respectively. Auxin foliar application and irrigation has had no significant effect on the grain oil percentage. Goldasht cultivar demonstrates a higher grain yield compared to Padideh cultivar due to lower head temperature, higher soluble carbohydrate concentration, number of heads, and 1000-grain weight. Generally, results show that the effect of the studied treatments is affected by the year and despite the positive effect of auxin foliar application on some yield components at both irrigation levels, foliar application of auxin at middle of flowering stage has no significant effect on grain yield. | ||
| کلیدواژه‌ها [English] | ||
| Grain yield, Head temperature, Interruption of irrigation, Leaf area index, 1000-seed weight | ||
| مراجع | ||
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