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پژوهش های کاربردی زراعی (زراعت سابق)، جلد ۲۸، شماره ۱۰۶، صفحات ۱۹۳-۲۰۳
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عنوان انگلیسی
چکیده انگلیسی مقاله To determinate of regression relationships and correlation between different attributes and yield, 28 clones with different maturityalong to six control varieties with Agria, Marfona, Satyna, savalan, Kaiser and Bourne were studied in a randomized complete blockdesign format with three replications at the Seed and Plant Improvement Research Institute in 2012. The main stem number, plant height,stem diameter, day of tuberization and harvesting were assessment during growing stage and tubers number per plant, average tuberweight, tuber size, total and marketable yield, tuber dry matter, starch content and specificity gravity were measured after harvesting.The results showed that difference between clones for most of traits was significant at the 1% level. The spearman correlation coefficientranged from -0.397 to 0.998 where the highest one was belong to specificity gravity and starch and the lowest one was belong totuber dry matter and reducing sugar content. The Pierson correlation coefficients ranged from -0.33 to 0.958 where the highest one wasbelong to total yield and marketable yield and the lowest negative one was belong to marketable yield and tuberization time. There wasa little positive correlation (10.1%) between starch and total and marketable yield. The results of regression analysis based on forward,backward, and stepwise methods was the same for post-harvested traits and only tuber weight was included to the model at the 1% levelwhereas at the 5% level, tuber weight, tuber flesh color and tuber shape was included to the model respectively. For growing stage traits,plant high and tuberization time were included to the model respectively. The highest and lowest effects were belonging to tuber weight(52.58%) and tuber shape (5.51%) respectively.
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نویسندگان مقاله ابراهیم معصوم پور |
، دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی واحد اسلامشهر
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی اسلامشهر (Islamic azad university of islamshahr)

احمد موسی پور گرجی | mousapour gorji
عضو هیئت علمی موسسه تحقیقات اصلاح و تهیه نهال و بذر کرج
سازمان اصلی تایید شده: موسسه تحقیقات اصلاح و تهیه نهال و بذر

یونس شرقی |
عضو هیئت علمی دانشگاه آزاد اسلامی واحد اسلامشهر
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی اسلامشهر (Islamic azad university of islamshahr)

نشانی اینترنتی http://aj.areo.ir/article_105742_64b89957bc49cd4f341f9c90d9ce50ba.pdf
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