بررسی شایستگی نسبی بیوتیپ‌های خردل وحشی (Sinapis arvensis ) مقاوم و حساس به بازدارنده‌های استولاکتات سنتتاز (ALS) در شرایط رقابت و عدم رقابت با گندم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه پیام نور

2 دانشگاه ابوریحان

3 موسسه تحقیقات گیاهپزشکی

چکیده

به منظور بررسی شایستگی نسبی بیوتیپ‌های خردل‌وحشی مقاوم به بازدارنده‌های ALS جمع‌آوری شده از سه استان خوزستان، گلستان و کرمانشاه، آزمایشات گلخانه‌ای در دو بخش انجام گرفت. در بخش اول روند تغییرات وزن خشک اندام‌هوایی، سطح برگ و ارتفاع بیوتیپ مقاوم هر استان با بیوتیپ حساس همان استان در شرایط عدم رقابت با گندم مقایسه شدند. در بخش دوم قدرت رشد بیوتیپ‌های حساس و مقاوم هر استان در شرایط رقابت با گندم و قدرت رشد و تولید عملکرد گندم در رقابت با بیوتیپ‌‌های مذکور مورد مطالعه قرار گرفت. بر اساس نتایج در بین بیوتیپ‌های مقاوم، رشد بیوتیپ Ker-2 از استان کرمانشاه نسبت به بیوتیپ حساس Ker-1 از نظر سطح برگ بالاتر بود و از نظر ارتفاع نهایی و وزن خشک بوته اختلاف معنی‌داری بین دو بیوتیپ دیده نشد. بیوتیپ‌های مقاوم استان‌های گلستان و خوزستان (G3 و Kh5) نسبت به بیوتیپ‌های حساس این استان‌ها (G9 و Kh3) از نظر هر سه صفت مورد مطالعه به صورت معنی‌دار پایین‌تر بودند. در شرایط رقابت با گندم نیز بیوتیپ مقاوم Ker-2 نسبت به بیوتیپ حساس Ker-1 اختلاف معنی‌داری از نظر توان رقابت با گندم نداشتند و شاخص ازدحام نسبی دو بیوتیپ استان کرمانشاه اختلاف معنی‌دار نداشتند و در نهایت نیز اختلاف رشد و تولید عملکرد گندم در رقابت با این دو بیوتیپ غیرمعنی‌دار بود. اما در رابطه با بیوتیپ‌های استان گلستان و خوزستان نتایج حاکی است که در شرایط رقابت با گندم بیوتیپ‌های حساس این دو استان (G9 و Kh3) نسبت به بیوتیپ‌های مقاوم آن‌ها (G3 و Kh5) از نظر رشد و ضریب ازدحام برتری داشتندوگندم در رقابت با بیوتیپ‌های مقاوم G3 و Kh5 نسبت به بیوتیپ‌های حساس G9 و Kh3 به ترتیب رشد و عملکرد دانه‌ای بالاتری داشتن. در نهایت نتایج نشان داد که در بین سه بیوتیپ مقاوم، تنها بیوتیپ Ker-2 دارای قدرت رشد و رقابت برابر با بیوتیپ حساس می‌باشد که می‌تواند به سرعت گسترش پیدا کرده و با توجه به مقاومت به بازدارنده‌های ALS، مزاحمت بالایی ایجاد می‌نماید.

کلیدواژه‌ها

عنوان مقاله [English]

Study Fitness of Resistant and Susceptible Biotypes of Wild Mustard (Sinapis arvensis) Biotypes to Acetolactate Synthase (ALS) Inhibitor in Competition and Non-Competition with Wheat

چکیده [English]

This research was conducted to study the relative fitness of wild mustard biotypes of Khoozestan, Golestan and Kermanshah provinces that are resistant to Acetolactate Synthase (ALS) Inhibitors. Green-house experiments were conducted in two parts. In the first part, plant dry matter, leaf area and plant height change of resistant and susceptible biotypes of each province were compared under no competition with wheat condition. In the second part, growth ability of resistant and susceptible biotypes of each province, growth ability and yield of wheat were studied under competition conditions. According to the results, resistant biotype Ker-2 had significantly higher than susceptible biotype Ker-1, but there was no significant difference between them on the point of final height and dry weight per plant. Resistant biotypes of Golestan and Khoozestan (Kh5 & G3) were lower than susceptible biotypes of these provinces (Kh3 & G9) on the point of mentioned three criteria, significantly under competition with wheat condition. Resistant biotypes of Ker-2 and susceptible biotypes of Ker-1 had no significant difference on the point of ability of competition with wheat. Relative interference index of the two biotypes of Kermanshah were not significantly, different. Finally, difference of growth and yield of wheat were not significant in competition with these two biotypes. According to the results of Golestan and Khoozestan, susceptible biotypes of them (Kh3 & G9) had significantly higher growth and interference index than resistant biotypes (Kh5 & G3) in competition with wheat. Also, wheat had higher grain growth and yield in competition with resistant biotypes rather than susceptible biotypes. Finaly, results showed that among the three resistant biotypes, only Ker-2 had the same competition and growth ability to susceptible biotypes. Therefor it, could disperse rapidly and make high interference due to its resistance to ALS inhibitors.

کلیدواژه‌ها [English]

  • Acetolactate Synthase (ALS) Inhibitors
  • Competition
  • fitness
  • Interference Index
  • Wild Mustard

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