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تأثیر محلولپاشی با متانول و تاریخکاشت بر عملکرد میوه، روغن و ترکیب اسیدهای چرب گیاه دارویی کدو پوست کاغذی (Cucurbita pepo convar. pepo var. styriaca) | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 13، دوره 34، شماره 6 - شماره پیاپی 92، بهمن و اسفند 1397، صفحه 1023-1034 اصل مقاله (259.62 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2019.116345.2197 | ||
| نویسندگان | ||
| عطیه نصرالهی1؛ ایرج اله دادی2؛ مجید قربانی جاوید* 3؛ مرجان سادات حسینی فرد1 | ||
| 1دانشآموخته کارشناسی ارشد زراعت، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان- دانشگاه تهران، پاکدشت، ایران | ||
| 2استاد، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان- دانشگاه تهران، پاکدشت، ایران | ||
| 3استادیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان- دانشگاه تهران، پاکدشت، ایران | ||
| چکیده | ||
| بهمنظور بررسی تأثیر کاربرد متانول و تاریخ کاشت بر عملکرد دانه و میوه، درصد عملکرد روغن و ترکیب اسیدهای چرب گیاه دارویی کدو پوست کاغذی، آزمایشی بهصورت کرتهای خرد شده در قالب بلوکهای کامل تصادفی در سه تکرار در سال 93-1392 اجرا شد. سه تاریخ کاشت شامل اول اردیبهشت، اول خرداد و اول تیر بهعنوان عامل اصلی و کاربرد متانول با غلظت 30% حجمی در چهار زمان محلولپاشی شامل شاهد (عدم مصرف)، قبل از مرحله زایشی، بعد از مرحله زایشی و مرحله دانهبندی بهعنوان عامل فرعی مطالعه گردید. نتایج پژوهش نشان داد اثر متقابل تاریخ کاشت و کاربرد متانول بر صفات عملکرد دانه در میوه، وزن خشک دانه، عملکرد میوه، وزن هزاردانه، درصد روغن و ترکیب اسیدهای چرب در سطح احتمال 1% معنیدار بود. بیشترین عملکرد دانه، وزن خشک دانه، عملکرد میوه و درصد روغن در محلولپاشی متانول قبل از مرحله زایشی در تاریخ کشت اول تیرماه حاصل شد. بیشترین وزن هزاردانه (1155.6 گرم) متعلق به تیمار محلولپاشی متانول بعد از مرحله زایشی در تیرماه بود. تیمارهای محلولپاشی در مرحله دانهبندی در تاریخ کشت سوم و نیز عدم مصرف متانول در تاریخ کشت دوم بیشترین میزان اسید اولئیک را نشان دادند. بیشترین میزان اسیدهای چرب لینولئیک (43.36%)، لینولنیک (1.86%) و پالمتیک (21.20%) بهترتیب در تاریخهای کشت خرداد، تیر و اردیبهشت و تحت محلولپاشی متانول بعد از مرحله زایشی بدست آمد. تیمار شاهد نیز در تاریخ کشت اول بیشترین میزان اسید استئاریک (11.50%) را نشان داد. بهطور کلی کاشت کدو پوست کاغذی در تیرماه همراه با محلولپاشی متانول قبل از مرحله زایشی بهمنظور افزایش عملکرد و محلول پاشی بعد از مرحله زایشی با هدف بهبود کیفی برخی ترکیبهای روغن آن توصیه میگردد. | ||
| کلیدواژهها | ||
| اسید لینولئیک؛ اسید اولئیک؛ تاریخ کاشت؛ دانهبندی؛ عملکرد روغن | ||
| عنوان مقاله [English] | ||
| Effect of methanol foliar application and planting date on fruit yield, oil content and composition of pumpkin (Cucurbita pepo convar. pepo var. styriaca) | ||
| نویسندگان [English] | ||
| A. Nasrollahi1؛ I. Alahdadi2؛ M. Ghorbani Javid3؛ M.S. Hoseinifard1 | ||
| 1M.Sc. graduated, Department of Agronomy and Plant Breeding Sciences, College of Aburaihan, University of Tehran, Pakdasht, Tehran, Iran | ||
| 2Department of Agronomy and Plant Breeding Sciences, College of Aburaihan, University of Tehran, Pakdasht, Tehran, Iran | ||
| 3Department of Agronomy and Plant Breeding Sciences, College of Aburaihan, University of Tehran, Pakdasht, Tehran, Iran | ||
| چکیده [English] | ||
| linoleic acid, oleic acid, planting date, seed filling stage, oil yield. fatty acid composition of pumpkin (Cucurbita pepo convar. pepo var. styriaca), a split plot experiment was conducted in a randomized complete block design with three replications during 2013-2014. Three planting dates (21 April, 22 May, 22 June) as the main factor and application of methanol (30% V/V) in four levels (control, pre-production phase, post-production phase, seed filling stage) were studied as the sub factor. Results showed that the interaction effect of planting date and application of methanol on seed yield in fruit, seed dry weight, 1000-seed weight, fruit yield, oil percentage and fatty acids compositions were significant at 1% probability level. The highest seed yield, seed dry weight, fruit yield, and oil content were obtained in the methanol foliar application in the pre-production phase in June 22. The highest 1000-seed weight (1155.6 g) was belonged to the methanol foliar application in the post-production phase in June 22. The foliar application treatments in seed filling stage in June 22 and control treatment also in May 22 showed the highest amount of oleic acid. The highest amount of linoleic (43.36%), linolenic (1.86%), and palmitic (21.20%) acids was obtained under methanol foliar application in the post-production phase in May 22, June 22 and April 21, respectively. The control treatment showed the highest amount of stearic acid (11.5٪) in the first planting date (April 21). Finally, the planting date of medicinal pumpkin in June 22 with foliar application of methanol in the pre-production phase in order to increasing of yield, and foliar application in the post-production phase to improve the qualitative traits of oil are recommended. | ||
| کلیدواژهها [English] | ||
| Linoleic acid, Oleic acid, oil yield, Planting date, Seed filling stage | ||
| مراجع | ||
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