مقایسه شاخص‎ سطح برگ، خصوصیات کمی و کیفی 13 رقم جدید سیب زمینی تحت شرایط اقلیمی نیمه خشک و سرد رزن

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش‎آموخته کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران.

2 دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران.

چکیده

برای رسیدن به عملکرد مطلوب کمی و کیفی سیب‌زمینی در هر منطقه لازم است ارقام جدید با یکدیگر مقایسه گردد. به این ‌منظور 13 رقم جدید به‌همراه دو رقم آگریا و بانبا از نظر شاخص سطح برگ، صفات زراعی و کیفی در شرایط آب‌وهوایی رزن موردبررسی قرار گرفتند. این پژوهش در قالب طرح آماری بلوک­های کامل تصادفی با سه تکرار در ایستگاه تحقیقاتی دانشگاه بوعلی سینا در سال 1396 انجام گرفت. نتایج نشان داد رقم مانیتو دیرتر از دیگر ارقام به حداکثر شاخص سطح برگ رسید و با داشتن 12 غده در بوته نسبت به ارقام شاهد بانبا و آگریا به‌ترتیب 112 و 83 درصد برتری داشت. در میان ارقام، ناتاشا با دارابودن بالاترین شاخص سطح برگ حداکثر (65/3) نسبت به آگریا و بانبا به‌ترتیب 57 و 19 درصد پر برگ‌تر بود. وزن غده در رقم اوتاوا (8/157 گرم در غده) نسبت به ارقام آگریا و بانبا به‌ترتیب 5/70 و 4/20 درصد بیش‌تر بود. رقم مانیتو با عملکرد 71399 کیلوگرم در هکتار برتری 123 درصدی نسبت به آگریا و 70 درصدی نسبت به بانبا نشان داد. در این پژوهش ارقام از لحاظ درصد پروتئین غده تفاوت معنی‎دار نداشتند، درحالی‌که از نظر درصد نشاسته غده متفاوت بودند و بالاترین مقدار در رقم مانیتو (09/18 درصد) و سپس در اوتاوا و کونکوردیا مشاهده شد. به‌طورکلی، ارقام مانیتو، کاروسو و فالوکا براساس صفات حداکثر شاخص سطح برگ، تعداد غده در بوته و عملکرد برای کاشت در رزن قابل پیشنهاد هستند.

کلیدواژه‌ها


عنوان مقاله [English]

Comparison of Leaf Area Index, Quantitative and Qualitative Characteristics of 13 New Potato Cultivars under semi-arid and cold Climatic Conditions of Razan

نویسندگان [English]

  • Ali Asghar Fozouni 1
  • Mohammad Ali Aboutalebian 2
1 Former M.Sc. Student, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
2 Associate Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
چکیده [English]

In order to achieve optimum quantitative and qualitative yield of potato in each region, new cultivars need to be compared. As such, this study has been carried out to compare 13 new potato cultivars along with two cultivars of Agria and Banba with each other to identify suitable cultivars for leaf area index, agronomic, and qualitative traits under climatic conditions of Razan. The statistical design, used in the present study, has been complete randomized block with three replications. Results show that Manito cultivar has reached the maximum leaf area index later than other cultivars, having 12 tubers per plant, which is 112% and 83% superior to Banba and Agria, respectively. Also, Natascha cultivar with a leaf area index of 3.65 has been 57% and 19% leafier than Agria and Banba, respectively. Tuber weight in Ottawa (157.8 g per tuber) has been 70.5% and 20.4% greater than Agria and Banba, respectively. Manito cultivar yields 71399 kg/ha, which is 123% more than Agria and 70% than Banba. Protein percentage of tubers in this study do not differ among the potato cultivars, while the difference is significant among the potato cultivars in tuber starch percentage and the highest values belong to Manito (18.09%) and Ottawa and Concordia cultivars, in the second and place. Generally, Manitou, Caruso, and Faluca cultivars are recommended for planting in the Razan on the basis of traits of maximum leaf area index, number of tubers per plant, and tuber yield.

کلیدواژه‌ها [English]

  • number of tubers per plant
  • Protein
  • starch
  • tuber weight
  • Tuber yield
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