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بررسی اثر تنش کم آبی بر عملکرد دانه و اسید های چرب روغن دانه هیبریدهای آفتابگردان | ||
| به زراعی کشاورزی | ||
| مقاله 11، دوره 23، شماره 2، تیر 1400، صفحه 347-360 اصل مقاله (599.9 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jci.2020.304584.2409 | ||
| نویسندگان | ||
| جهانفر دانشیان* 1؛ فرناز شریعتی2؛ نادیا صفوی فرد3؛ عبداله حسنی4 | ||
| 1استاد، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| 2استادیار، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| 3کارشناس، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 4کارشناس، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| چکیده | ||
| تأثیر تنش کم‌آبی بر کیفیت روغن و عملکرد دانه 11 ژنوتیپ هیبرید آفتابگردان در کرج در سالهای 1391 و 1392 بررسی شد. به این منظور سه آزمایش جداگانه در قالب طرح بلوکهای کامل تصادفی در سه تکرار برای اعمال تیمارهای تنش کم‌آبی در نظر گرفته شد. آزمایشهای آبیاری مطلوب، تنش متوسط و شدید بهترتیب براساس 60، 120 و 180 میلیمتر تبخیر از تشت تبخیر کلاس A انجام گرفت. نتایج نشان داد که عملکرد دانه در شرایط تنش متوسط و شدید با کاهش 18 و 33 درصد مواجه شد. عملکرد دانه و درصد روغن تحت تأثیر ژنوتیپ و اثر متقابل سال و تنش قرار داشتند. هیبرید برزگر با متوسط 2846 کیلوگرم در هکتار بیش‌ترین عملکرد دانه را داشت. هم‌چنین با 65/43 درصد روغن در گروه برتر قرار گرفت. پاسخ هیبریدها از نظر عملکرد دانه و درصد روغن تحت تأثیر شرایط محیطی دو سال آزمایش قرار گرفت. اسیدهای چرب اولئیک و لینولئیک اسید تحت تأثیر تیمار تنش قرار نگرفتند. اما همبستگی منفی قوی بین اسیدهای چرب اولئیک و لینولئیک وجود داشت. ارقام هایسان 25 و سیرنا برای تولید روغن با اسید اولئیک بالاتر و برزگر و R-43×G6 برای تولید روغن با اسید چرب لینولئیک بالاتر مناسب میباشند. | ||
| کلیدواژه‌ها | ||
| آفتابگردان؛ اسیدهای چرب؛ تنش کم آبی؛ دوره پرشدن دانه؛ عملکرد دانه | ||
| عنوان مقاله [English] | ||
| Investigating of water deficit stress effect on yield and fatty acids of sunflower hybrids seed oil | ||
| نویسندگان [English] | ||
| Jahanfar Daneshian1؛ Farnaz Sahriati2؛ NADIA SAFAVI FARD3؛ Abdollah Hassani4 | ||
| 1Professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| 2Assistant professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| 3Expert, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| 4Expert, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| چکیده [English] | ||
| The effect of water deficit stress has been evaluated on oil quality and yield of 11 sunflower hybrids in Karaj during 2012 and 2013. Three separate experiments have been carried out as the base of randomized complete block design with three replications to apply water deficit stress treatments. Irrigation of control, mild, and severe stress treatments are performed on the base of 60, 120, and 180 mm evaporation from Class A evaporation pan, respectively. Results show that seed yield has decreased about 18% and 33% in mild and sever water deficit stresses, respectively. Yield and oil percentage are affected by hybrids and the interaction of year and stress. Barzegar hybrid, with an average of 2846 kg/ha, has had the highest grain yield. It is also in the top group with 43.65% oil. Yield and seed oil percentage are affected by environmental conditions of years, while water deficict stress has no significant effect on oleic and linoleic acids. However, there is a strong negative correlation between oleic and linoleic acids. Hysun 25 and Sirena cultivars are suitable for oil production with higher oleic acid and Barzegar and G6×R-43 are suitable for oil production with higher linoleic acid. | ||
| کلیدواژه‌ها [English] | ||
| Fatty acid, Seed filling duration, Seed yield, Sunflower, Water deficit stress | ||
| مراجع | ||
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