کاربرد پس رویشی کودهای پتاسیمی در ارقام گلرنگ

نوع مقاله: علمی پژوهشی

نویسندگان

1 گروه زراعت و اصلاح نباتات، واحد دامغان، دانشگاه آزاد اسلامی، دامغان، ایران

2 دانشگاه آزاد اسلامی، واحد تهران شمال، باشگاه پژوهشگران جوان و نخبگان، تهران، ایران

چکیده

اثر محلول ­پاشی کود پتاسیم (در 2 سطح محلول­ پاشی و عدم محلول­ پاشی) از منبع سولفات پتاسیم و سرک پتاسیم (در 2 سطح سرک و بدون سرک) از منبع کلرور پتاسیم بر صفات تعداد دانه در طبق، تعداد شاخه جانبی، عملکرد دانه، محتوای روغن دانه، عملکرد روغن، نسبت مغز به پوسته، ارتفاع بوته و وزن خشک اندام هوایی در سه ژنوتیپ گلرنگ شامل KW.2، پدیده و گلدشت با اجرای آزمایشی در مرکز تحقیقات کشاورزی و منابع طبیعی استان سمنان (شاهرود) به­ صورت فاکتوریل در قالب بلوک ­های کامل تصادفی با سه تکرار طی سال زراعی 1392 ارزیابی گردید. نتایج نشان داد که بیشترین میانگین تعداد دانه در طبق (28.70)، تعداد شاخه جانبی (17.83) و نسبت مغز به پوسته (1.47) در ژنوتیپ KW.2 حاصل شده است. بالاترین میزان عملکرد دانه (2627.7 کیلوگرم در هکتار) و عملکرد روغن (1350.5کیلوگرم در هکتار) در تیمار محلول­ پاشی با سولفات پتاسیم به ­ترتیب در ژنوتیپ­ های پدیده و KW.2 به ­دست آمد. اثر متقابل ژنوتیپ و محلول­ پاشی بر عملکرد دانه و روغن معنی­ دار بود. در نتیجه مشخص گردید که محلول­ پاشی با سولفات پتاسیم اثرات بهتری بر عملکرد دانه و روغن در ژنوتیپ­ های گلرنگ نسبت به سرک کلرور پتاسیم دارد.

کلیدواژه‌ها


عنوان مقاله [English]

Top-dressing of Potassium Fertilizers on Safflower

نویسندگان [English]

  • Neginsadat Amir Khalili 1
  • Alidad Amiri Behzadi 2
  • Esmaeil Babakhanzadeh Sajirani 2
1 Damghan Branch, Islamic Azad University, Damghan, Iran
2 Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Iran
چکیده [English]

To determine the effects of potassium foliar application (with two levels, use and non-use) from potassium sulphate source and top-dressing application of potassium fertilizer (with two levels, use and non-use) from potassium chloride source on number of seeds per capitulum, number of side branch per plant, seed yield, seed oil content, oil yield, seed to coat ratio, plant height and shoot dry weight in three safflower, genotypes including KW.2, Padideh and Goldasht a factorial experiment based on the randomized complete block design (RCBD) with three replications, was conducted during 2013 growing season at the Agricultural Research Center of Semnan province (Shahroud). Results showed that the highest average of number of seeds per capitulum (28.70), number of side branch per plant (17.83) and seed to coat ratio (1.47) were found in KW.2 genotype. The highest seed yield (2627.7 kg/ha) and oil yield (1350.5 kg/ha) were found from potassium sulphate foliar application in Padideh and KW.2 genotypes respectively. The interaction effect of genotype × potassium foliar application was significant for seed and oil yields. In conclusion, it was determined that potassium sulphate foliar application has better impacts on seed and oil yield of safflower genotypes than potassium top-dressing application.

کلیدواژه‌ها [English]

  • Foliar application
  • Grain yield
  • Oil content
  • Potassium
  • Safflower
  • Top-dressing
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