تأثیر تراکم کاشت گندم و زمان مصرف علف‌کش‌های توتال و آپیروس بر کنترل علف هرز جو‌دره در گندمزارهای استان فارس

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مربی، مرکز تحقیقات کشاورزی و منابع طبیعی فارس - زرقان

2 دانشیار، بخش تحقیقات علف‌های هرز مؤسسۀ تحقیقات گیاه‌پزشکی کشور، تهران

چکیده

به‌منظور بررسی تأثیر زمان کاربرد دو علف‌کش سولفوسولفورون ۷۵درصد WG (آپیروس) و سولفوسولفورون ۷۵درصد+‌ مت‌سولفوسولفورون-متیل ۵درصد (توتال 80درصد WG) و تراکم‌ بوتۀ گندم آزمایشی به‌صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی در سال زراعی 13۹1-۱۳۹2 در مرکز تحقیقات کشاورزی زرقان فارس در چهار تکرار اجرا شد. عامل اول کاربرد علف‌کش در پنج سطح شامل آپیروس به میزان30 گرم در هکتار و توتال به میزان 50 گرم در هکتار در مراحل دو تا چهار برگی و گرۀ دوم علف هرز جودره و شاهد بدون کاربرد علف‌کش و عامل دوم تراکم کاشت گندم رقم چمران در چهار سطح 400 (توصیه‌شده)، 500 ، 600 و ۷۰۰ بوته در مترمربع بود. نتایج نشان داد علف‌کش‌ها و تراکم‌های متفاوت گندم و همچنین برهمکنش آن‌ها بر صفات شمار بوته، وزن تر، خشک و وزن سنبلۀ جودره و عملکرد گندم اثر معنی‌دار داشت. آپیروس و توتال به‌کاربرده‌شده در مرحلۀ گرۀ دوم ساقۀ جودره به ترتیب با مهار 88 و 93 درصد، موفق بودند و بهترین نتیجه از لحاظ کنترل جودره و دستیابی به عملکرد بالا در گندم، کاربرد تلفیقی تراکم 500 بوته در مترمربع همراه با علف‌کش توتال در مرحلۀ گرۀ دوم علف هرز جودره بود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Control of wild barley by sulfosulfuron+met sulfuron (Total) and sulfosulfuron (Apyrus) herbicides using time of application and wheat density

نویسندگان [English]

  • Mohammad Reza Jamali 1
  • Mohammad ali Baghestani 2
  • Ladan Jokar 1
1 Instructor, Fars Agricultural and Natural Resourses Research Center
2 Associate Professor, Iranian Plant Protection Research Institute, Weed Research Department, Tehran, Iran
چکیده [English]

In order to study the complementary effects of application time of two herbicides sulfosulfuron 75% WG (Apyrus) and 75% sulfosulfuron + 5% metsulfuron-methyl (Total) and planting wheat density on wild barley (Hordeum spontaneum koch.) control, an experiment was conducted in randomized complete blocks design with two-factors during 2012-2013 growing season in Zarghan (Fars). The first factor was five levels of herbicide application including application of Apyrus 75 WG (30 g ha-1 +Citogate 1 L ha-1) and Total 80 WG (5o g ha-1 +adjuvant 1250 ml ha-1) at 2 to 4 leaf stage and second joint stem of wild barley. The second factor was wheat density of Chamran cultivar in four levels including 400 (recommended rate), 500, 600 and seedlings per m2. Results showed that herbicides, crop density and their interaction had significant effect on wild barley traits such as seedling number, biomass, dry weight, spike weight and also crop yield. Apyros and Total, using at second joint stem of wild barley, had the highest effect by 88 and 93 percent respectively. The best treatment for controlling wild barley was the application of Total at second joint stem of wild barley and planting of 400 seedlings of wheat per unit area.

کلیدواژه‌ها [English]

  • Chamran
  • second joint stem
  • seedling stage
  • yield

مراجع

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سابقه مقاله

  • تاریخ دریافت: 16 فروردین 1394
  • تاریخ بازنگری: 24 آذر 1394
  • تاریخ پذیرش: 01 دی 1394
  • تاریخ انتشار: 01 آذر 1395

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