1دانشجوی دکتری گروه زراعت، دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی واحد کرج
2دانشیار گروه زراعت، دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی واحد کرج
چکیده
در این تحقیق اثر غلظتهای مختلف ماده آلی هومات پتاسیم بر عملکرد و اجزای عملکرد پنج رقم سیبزمینی در کشت بهاره (15 اردیبهشت ماه) در منطقه اردبیل انجام شد. آزمایش به صورت فاکتوریل در سه تکرار در سالهای زراعی 1389 و 1390 اجرا شد. فاکتورهای آزمایش شامل هومات پتاسیم در سه سطح (0، 250 و 300 میلیلیتر هومات پتاسیم در هکتار) و پنج رقم سیبزمینی آگریا، ساوالان، کایزر، مارکیز و لوتا بودند. صفات تعداد ساقه اصلی، تعداد و وزن غده در بوته و عملکرد غده در طول فصل زراعی و پس از برداشت اندازهگیری شدند. با توجه به نتایج به دست آمده، اثر هومات پتاسیم، رقم و اثر متقابل رقم و هومات پتاسیم بر صفات مورد بررسی معنیدار بود. ارقام ساوالان و آگریا دارای بیشترین و رقم لوتا دارای کمترین تعداد ساقه اصلی در بوته بودند. رقم ساوالان دارای تعداد غده بیشتری نسبت به سایر ارقام بود. بیشترین تعداد غده از کاربرد 250 میلی لیتر در هکتار هومات پتاسیم حاصل شد. رقم ساوالان دارای بیشترین وزن غده در بوته بود و بیشترین مقدار این صفت از تیمار 250 میلیلیتر در هکتار هومات پتاسیم حاصل شد. نتایج نشان داد که رقم ساوالان با مصرف 250 میلیلیتر در هکتار هومات پتاسیم بیشترین عملکرد غده را داشت. در این تحقیق در مجموع، ارقام ساوالان، کایزر و مارکیز به عنوان ارقام پر محصول و ارقام آگریا و لوتا به عنوان ارقام کم محصول معرفی شدند.
Potassium humate foliar application effects on yield and yield components of different potato cultivars at spring cultivation in Ardabil region
نویسندگان [English]
Jalil Ajalli1؛ Saeid Vazan2؛ Farzad Paknejad2؛ Mohammad Reza Ardekani؛ Ali Kashani
1Ph.D. Student in Agronomy, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran.
2Associate Prof. in Agronomy, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad
چکیده [English]
The effect of different concentrations of potassium humate organic matter was investigated on yield and yield components of five potato varieties in spring planting date of 5th May in Ardabil region, northwest Iran. Experiment was carried out as factorial based on a randomized complete block design with three replications during 2010 and 2011 growing seasons. Potassium humate was applied at three levels (0, 250 and 300 mL.ha-1 in 300 liter water) and the studied potato varieties included Agria, Savalan, Kaizer, Markiz and Lota. Traits including number of stems, number and weight of tubers per plant, and tuber yield were measured during growing season and after harvesting. Results revealed significant effect of potassium humate, variety and interaction of potassium humate and variety on the studied traits. Savalan and Agria had the highest number of main stems per plant and the lowest number of that was observed in Lota. Number of tubers per plant was higher for Savalan than other studied cultivars. The highest number of tubers per plant was obtained with 250 mL.ha-1 potassium humate application. Savalan also produced the highest tuber weight per plant. The highest tuber weight per plant was obtained when 250 mL.ha-1 potassium humate was applied. Savalan produced the highest total tuber yield when 250 mL.ha-1 potassium humate was applied. Based on the results, Savalan, Kaizer and Markiz were recognized as high product and stable varieties, whereas Agria and Lota were unstable ones with lower yield.
کلیدواژه‌ها [English]
Potato, potassium humate, yield, Yield components
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