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ارزیابی توانایی رقابتی ارقام سیب زمینی با علف های هرز | ||
به زراعی کشاورزی | ||
مقاله 12، دوره 22، شماره 4، دی 1399، صفحه 657-669 اصل مقاله (756.42 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jci.2020.291898.2291 | ||
نویسندگان | ||
فرشته نورالهی* 1؛ حمیدرضا محمددوست چمن آباد2؛ داود حسن پناه3؛ محمد انوار4 | ||
1دانش آموخته دکتری، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران. | ||
2استاد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران. | ||
3استادیار پژوهشی، بخش تحقیقات زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اردبیل (مغان)، سازمان تحقیقات،آموزش و ترویج کشاورزی، اردبیل، ایران. | ||
4دانشآموخته کارشناسی ارشد، گروه علوم خاک، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران. | ||
چکیده | ||
بهمنظور بررسی توانایی رقابتی ارقام مختلف سیبزمینی با علفهای هرز آزمایشی در سال 1395 در مزرعه تحقیقاتی ایستگاه تحقیقات کشاورزی و منابع طبیعی اردبیل در قالب طرح بلوکهای کامل تصادفی با سه تکرار انجام شد. تیمارهای موردمطالعه شامل 10 رقم سیبزمینی بودند که در شرایط با و بدونرقابت طبیعی علفهای هرز رشد میکردند. نتایج نشان داد افت عملکرد در شرایط حضور علفهای هرز از سه درصد در رقم ساتینا تا 84 درصد در رقم آگریا متغیر بود. همچنین توانایی رقابتی ارقام با یکدیگر متفاوت بود. رقم ساتینا دارای بالاترین شاخص رقابت (CI) بود و توانست وزن خشک علفهای هرز را نسبت به رقم اسپریت بهعنوان یک رقم ضعیف در رقابت با علفهای هرز به میزان دو برابر بیشتر کاهش دهد. از بین صفات موردبررسی قطر ساقه سیبزمینی همبستگی منفی با وزن خشک علفهای هرز و همبستگی مثبت با شاخصهای تحمل و رقابت ارقام داشت. قطر ساقه در رقم ساتینا در شرایط حضور علفهای هرز نسبت به رقم اسپریت 18 درصد بیشتر بود. بهطور کلی نتایج این پژوهش نشان داد رقم ساتینا بهعنوان یک رقم سازگار برای کشت در منطقه اردبیل نسبت به سایر ارقام از شاخص حساسیت (SSI) کمتر و پایداری بیشتری نسبت به علفهای هرز برخوردار بوده و میتوان آن را بهعنوان رقم رقیب در برنامههای مدیریت غیرشیمیایی علفهای هرز معرفی نمود. | ||
کلیدواژهها | ||
کلید واژهها: بازداندگی علف های هرز؛ رقابت پذیری؛ شاخص تحمل؛ صفات مورفوفیزیولوژیکی؛ مدیریت پایدار علفهای هرز | ||
عنوان مقاله [English] | ||
Evaluating the Competitive Ability of Potato Cultivars with Weeds | ||
نویسندگان [English] | ||
Fereshteh Nourollahi1؛ Hamid Mohammaddoust2؛ Davood Hassanpanah3؛ Mohammad Anvar4 | ||
1Former Ph.D. Student, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
2Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
3Research Assistant Professor, Plant Breeding (Genetics-Biometry), Horticulture Crops Research Department, Ardabil Agricultural and Natural Resources Research Centre, AREEO, Ardabil, Iran. | ||
4Former M.Sc. Student, Department of Soil Science, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran. | ||
چکیده [English] | ||
In order to study the competitiveness of potato cultivars with weeds, an experiment was conducted in 2016 at field research of Ardabil Agriculture and Natural Resources Research Station. For this purpose a randomized complete block has been used with three replications. The treatments include ten potato cultivars, grown with and without natural weed competition, with yield loss ranging from 3% in Satina to 84% in Agria in weedy condition. Also, the Competitive Ability (CA) of the cultivars differs. It is observed that satina cultivar has had the highest competitive index (CI) and could reduce the weed dry mass by two folds in comparison to Spirit as a poor cultivar. Also, stem diameter is seen to be negatively correlated with weed dry mass and positively correlated with tolerance and competition indices. Stem diameter in Satina has significantly stodd higher than Spirit cultivar. In general, the results of this study declare that Satina cultivar is considered as a tolerant and recommendable option for cultivation in Ardebil region than other cultivars, less susceptibility index (SSI) and more stable than weed, and can be introduced as a competitive cultivar in non-chemical weed management programs. | ||
کلیدواژهها [English] | ||
Competitiveness, morpho-physiological traits, sustainable weed management, tolerance index, weed suppression | ||
مراجع | ||
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