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ارزیابی عملکرد و برخی ویژگیهای فیزیولوژیک گل گاوزبان (Borago officinalis L.) تحت تراکم بوته و تاریخهای مختلف کاشت در منطقه اهواز | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 2، دوره 34، شماره 1 - شماره پیاپی 87، فروردین و اردیبهشت 1397، صفحه 1-16 اصل مقاله (1.15 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2018.114962.2096 | ||
| نویسندگان | ||
| حدیث حسنوند* 1؛ سید عطاءاله سیادت2؛ عبدالمهدی بخشنده2؛ محمدرضا مرادی تلاوت3؛ عادل پشت دار4 | ||
| 1دانشجوی دکتری زراعت، گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران | ||
| 2استاد، گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران | ||
| 3دانشیار، گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران | ||
| 4مربی، گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران | ||
| چکیده | ||
| بهمنظور بررسی عملکرد و برخی ویژگیهای فیزیولوژیک گل گاوزبان (Borago officinalis L.) تحت تراکم بوته و تاریخهای مختلف کاشت در شهر اهواز، آزمایشی بهصورت کرتهای یکبار خرد شده در قالب طرح پایه بلوکهای کامل تصادفی با سه تکرار در سال زراعی 96-1395 در مزرعه تحقیقاتی دانشگاه کشاورزی و منابع طبیعی رامین خوزستان اجرا شد. عوامل آزمایشی شامل تاریخ کاشت در پنج سطح (15 مهر، 5 آبان، 25 آبان، 15 آذر و 5 دی) در کرتهای اصلی و تراکم بوته با چهار سطح (6، 10، 14 و 18 بوته در مترمربع) در کرتهای فرعی قرار گرفتند. نتایج نشان داد که کشت دیرهنگام (5 دیماه) سبب افزایش دما در مرحله گلدهی و کاهش معنیدار عملکرد دانه و عملکرد بیولوژیکی بهترتیب با میانگین 182.2 و 1443.4 کیلوگرم در هکتار گردید. تاریخ کاشت 5 آبان در تراکم 10 بوته در مترمربع بهترتیب با میانگینهای 1243.8 و 470.3 کیلوگرم در هکتار بیشترین عملکرد دانه و عملکرد روغن و تاریخ کاشت 15 مهر در تراکم 14 بوته در مترمربع با میانگینهای 1.13 و 2.39 میلیگرم بر گرم وزن تر بیشترین کلروفیل a و کلروفیل کل را به خود اختصاص دادند. با تأخیر در تاریخ کاشت از 15 مهر تا 5 دی، محتوای نسبی آب برگ، پایداری غشاء سلول و میزان کلروفیل برگ کاهش یافت. تراکم بالای بوته در مترمربع باعث افزایش ارتفاع بوته و عملکرد بیولوژیکی و کاهش درصد روغن شد. صفات مورد بررسی بجز درصد روغن دانه در تاریخ کاشتهای مختلف با هم اختلاف معنیدار داشتند. | ||
| کلیدواژهها | ||
| گل گاوزبان (Borago officinalis L.)؛ محتوای کلروفیل؛ پایداری غشاء؛ عملکرد روغن؛ محتوای نسبی آب برگ | ||
| عنوان مقاله [English] | ||
| Evaluation of yield and some physiological characterictics of borage (Borago officinalis L.) under plant density and sowing dates in Ahwaz region | ||
| نویسندگان [English] | ||
| H. Hasanvand1؛ S.A. Siadat2؛ A.M. Bakhshandeh2؛ M.R. Moradi Telavat3؛ A. Poshtdar4 | ||
| 1Ph.D. student, Department of Agronomy, Khouzestan Agricultural sciences and Natural Resources University, Mollasani, Khuzestan, Iran | ||
| 2Department of Agronomy, Khouzestan Agricultural sciences and Natural Resources University, Mollasani, Khuzestan, Iran | ||
| 3Department of Agronomy, Khouzestan Agricultural sciences and Natural Resources University, Mollasani, Khuzestan, Iran | ||
| 4Department of Agronomy, Khouzestan Agricultural sciences and Natural Resources University, Mollasani, Khuzestan, Iran | ||
| چکیده [English] | ||
| In order to study the yield and some physiological characteristics of borage (Borago officinalis L.) under different plant densities and sowing dates in Ahwaz city, an experiment was carried out in a split plot arrangement based on randomized complete block design with three replications in Khuzestan Ramin Agriculture and Natural Resources University, Iran during 2016-2017. The treatments included sowing date as main plot in five levels (15 October, 5 November, 25 November, 15 December and 5 January) and plant densities as sub-factor in four levels (6, 10, 14 and 18 plant per m2) were considered. The results showed that delayed sowing (5 January) caused anincreased temperature at flowering stage and significantly reduced the grain yield and biological yield (182.22 and 1443.4 kg ha-1, respectively). The sowing dates of 5 November at a density of 10 plants/m2 caused the highest grain yield and oil yield with average values of 1243.82 and 437.47 kg ha-1, respectively. The sowing date of 15 October at a density of 14 plants/m2 caused the highest chlorophyll a and total chlorophyll content with average values of 1.13 and 3.39 mg/g fw, respectively. A delay in sowing date from 15 October to 5 January led to a decreased relative leaf water content, cell membrane stability and chlorophyll content. High plant density per m-2 increased the plant height and biological yield and reduced the oil percentage. Sowing date had significant effects on all traits expect oil percentage. | ||
| کلیدواژهها [English] | ||
| Borage (Borago officinalis L.), chlorophyll content, membrane stability, oil yield, relative leaf water content | ||
| مراجع | ||
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