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رابطه خصوصیات زراعی با تراکم بوته آفتابگردان دو منظوره روغنی-آجیلی در خوی | ||
| به زراعی کشاورزی | ||
| مقاله 1، دوره 21، شماره 1، فروردین 1398، صفحه 1-12 اصل مقاله (1.03 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jci.2018.260023.2048 | ||
| نویسنده | ||
| مهدی غفاری* | ||
| استادیار، مؤسسه تحقیقات، اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| چکیده | ||
| به‌منظور بررسی تأثیر فاصله ردیف و تراکم بوته بر خصوصیات زراعی آفتابگردان دو منظوره روغنی-آجیلی لاکومکا، آزمایشی به صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی با چهار تکرار از سال 1393 به مدت دو سال در خوی انجام شد. دو عامل فاصلة ردیف‌های کاشت (60 و 75 سانتیمتر) و تراکم بوته با پنج سطح (30، 45، 60، 75 و90 هزار بوته در هکتار) تیمارهای آزمایش را تشکیل دادند. بر اساس نتایج حاصل بین دو فاصله ردیف60 و75 سانتیمتری اختلاف معنی‌داری از نظر خصوصیات زراعی مشاهده نشد ولی تراکم بوته اثر معنی‌دار بر کلیه خصوصیات زراعی داشت. با افزایش تراکم بوته مراحل فنولوژیکی تسریع شد و قطر طبق‌ها کوچک‌تر اما ارتفاع بوته و درصد روغن افزایش یافت. با افزایش تراکم از 30 به90 هزار بوته در هکتار وزن هزار از 115 به 84 گرم کاهش یافت درحالی‌که درصد روغن از 36 به 39 درصد افزایش یافت. بیشترین عملکرد دانه و روغن (به ترتیب 4132 و 1611 کیلوگرم در هکتار) از تراکم 75 هزار بوته در هکتار حاصل شد. تجزیه رگرسیون مشخص کرد که درصد روغن، ارتفاع بوته و تعداد دانه موثرترین خصوصیات برآورد کننده عملکرد روغن هستند. بر اساس نتایج این بررسی کشت رقم لاکومکا در تراکم‌های 75 و 45 هزار بوته در هکتار به ترتیب برای تولید عملکرد روغن بالا و مصرف آجیلی در منطقه خوی آذربایجان‌غربی مناسب است. | ||
| کلیدواژه‌ها | ||
| رگرسیون؛ عملکرد روغن؛ فاصله ردیف؛ لاکومکا؛ وزن دانه | ||
| عنوان مقاله [English] | ||
| Relationship between agronomic characteristics and plant density in dual purpose oil-confectionery type sunflower | ||
| نویسندگان [English] | ||
| Mehdi Ghaffari | ||
| Assistant Professor, Seed and Plant Improvement Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran | ||
| چکیده [English] | ||
| To study the effect of row spacing and plant density on agronomic traits of dual purpose sunflower; cultivar Lakomka two years' study from 2014 was carried out as a factorial experiment based on RCB design with four replications in Khoy. The experimental treatments included row spacing at two levels (60 and 75 cm) and five plant densities (30, 45, 60, 75 and 90 thousands P ha-1). According to the results there were no significant difference between 60 and 75 cm row spacing for any of the studied traits; however plant density had significant effect on all of the traits. Phenological stages accelerated and head diameter decreased but plant height and oil content increased as plant density increased. Seed weight decreased from115 g to 84 g while oil content increased from 36% to 39% as plant density increased from 30 to 90000 P.ha-1. The highest seed and oil yields (4132 and 1611 kg ha-1) were observed in plant density of 75000 P.ha-1. The regression analyses revealed that oil content, plant height and seed number, are the most effective traits for predictor of oil yield. The results of this study indicated that plant densities of 75 and 45000 P.ha-1 are optimum densities for production of cultivar Lakomka with higher oil yield and as confectionary use in Khoy, West Azarbaijan. | ||
| کلیدواژه‌ها [English] | ||
| Lakomka, oil yield, Regression, Row Space, Seed weight | ||
| مراجع | ||
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