واکنش خصوصیات کمی و کیفی چغندرقند به محلول پاشی متانول در شرایط مختلف رطوبت قابل دسترس

نوع مقاله : کامل علمی - پژوهشی

نویسندگان

1 استادیار مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران.

2 استاد گروه زراعت، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد کرج، کرج، ایران.

چکیده

با توجه به محدودیت‌هایی که تنش کم‌آبی بر روی گیاهان ایجاد می‌کند، استفاده از راهکارهایی که باعث کنترل یا کاهش اثرات سوء ناشی از کم‌آبی گردد، می‌تواند مد نظر قرار گیرد. به‌منظور بررسی اثر محلول‌پاشی متانول بر برخی از صفات کمی و کیفی چغندرقند در شرایط مختلف رطوبت قابل دسترس، آزمایش مزرعه‌ای طی دو سال در مزرعه تحقیقاتی دانشگاه آزاد اسلامی واحد کرج، ایران، به‌صورت اسپلیت پلات در قالب بلوک‌های کامل تصادفی در سه تکرار انجام شد. فاکتور اول، میزان آبیاری در دو سطح (S1: نرمال (آبیاری بعد از 40 درصد تخلیه رطوبت قابل دسترس) و S2: تنش (آبیاری بعد از 70 درصد تخلیه رطوبت قابل دسترس) و فاکتور دوم، غلظت‌های مختلف متانول با سه سطح (شاهد)، 14 و 28 درصد حجمی متانول بودند که فاکتور اول در پلات اصلی و فاکتور دوم در پلات فرعی قرار گرفتند. صفات مورد بررسی شامل عملکرد ریشه، عیار قند، سدیم، پتاسیم، نیتروژن، آلکالیته، درصد قند قابل استحصال(، قند ملاس، عملکرد شکر و عملکرد شکر سفید بود. نتایج نشان داد که متانول بدون در نظر گرفتن مقدار رطوبت قابل دسترس می‌تواند باعث افزایش میزان عملکرد ریشه، عملکرد شکر و عملکرد شکر سفید گردد؛ به‌طوری که بیشترین عملکرد ریشه مربوط به سطح 14 و 28 درصد حجمی متانول به ترتیب با 70/12 و 68/78 تن در هکتار بود که این دو از نظر آماری در یک گروه قرار گرفتند.
 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The response of quantitative and qualitative characteristics of sugar beet to foliar application of methanol under drought stress

نویسندگان [English]

  • M. Sadeghi shoae 1
  • F. Paknejad 2
1 Assistant professor of Sugar Beet Seed Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
2 professor ofDepartment of Agronomy, Islamic Azad University, Karaj Branch, Karaj, Iran.
چکیده [English]

Considering the limitations that drought stress imposes on plants, use of strategies that control or reduce the adverse effects of drought stress is important. In order to evaluate the effect of methanol foliar applicationspraying on some quantitative and qualitative traits of sugar beet under different conditions of available moisture, a field experiment was conducted for two years in the research field of Islamic Azad University, Karaj Branch, Iran, as a split plot in randomized complete blocks with three replications. The first factor was the irrigation at two levels of S1 (normal irrigation after 40% of available moisture drain) and S2 (irrigation after 70% of available moisture drain) and the second factor was different methanol concentrations with three levels (control), 14 and 28% by volume of methanol) in which  the first factor was assigned in the main plot and the second factor in the sub-plot. The studied traits included root yield, sugar content, sodium, potassium, nitrogen, alkalinity, white sugar content, molasses sugar, sugar yield, and white sugar yield. Results showed that methanol can increase root yield, sugar yield, and white sugar yield regardless of the amount of available moisture; so that the highest root yield was related to the 14 and 28% volume of methanol with 70.12 and 68.87 t ha-1, respectively, which were statistically placed in the same group.

کلیدواژه‌ها [English]

  • Irrigation
  • Methanol
  • Quality characteristics
  • Root yield
  • Sugar beet
  • White sugar yield

مراجع

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چغندرقند
دوره 39، شماره 1
شهریور 1402
صفحه 25-36

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