بررسی ترکیب عنصرهای کانی اناردانه و برگ انار رقم نادری با محلول‌پاشی کود آمینواسیددار در شرایط تنش خشکی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی سابق کارشناسی ارشد، گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه زنجان

2 استاد، گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه زنجان

3 استادیار، مرکز تحقیقات آب و خاک قم

چکیده

به‌منظور بررسی ترکیب عنصرهای کانی اناردانه و برگ انار رقم نادری با محلول­پاشی کود آمینواسیددار در شرایط تنش خشکی پژوهشی انجام شد. آزمایش به‌صورت کرت‌های خردشده (اسپلیت پلات) در قالب طرح پایه بلوک­های کامل تصادفی اجرا شد. تیمار آبیاری در سه سطح (100، 75 و 50 درصد نیاز آبی) و تیمار کود آمینواسیددار در چهار سطح (0، 2، 3 و 4 میلی­لیتر در لیتر) اعمال شد. محلول­پاشی در چهار مرحله (پیش از باز شدن گل­ها، پس از تشکیل میوه، مرحلۀ رشد سریع و دو هفته پیش از برداشت) انجام شد. نتایج نشان داد، افزایش تنش آبی موجب کاهش نیتروژن (97/5 درصد)، فسفر (37/0 درصد) و پتاسیم (07/0 درصد) اناردانه و افزایش میزان آهن (230 قسمت در میلیون) اناردانه و پتاسیم (08/0 درصد) و آهن (84/348 قسمت در میلیون) برگ در مقایسه با شاهد شد. افزایش سطوح کود آمینواسیددار موجب افزایش نیتروژن (75/8 درصد)، پتاسیم (1/0 درصد) و آهن (92/235 قسمت در میلیون) اناردانه و فسفر (64/0 درصد) برگ شد، ولی میزان پتاسیم (07/0 درصد) و آهن (19/324 قسمت در میلیون) برگ را کاهش داد. نتایج به‌دست‌آمده نشان داد که محلول­پاشی با کود آمینواسیددار می­تواند به‌طور معنی­داری ارزش تغذیه­ای اناردانه را بهبود بخشد و اثرگذاری زیانبار تنش خشکی را کاهش دهد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Study of aril and leaf mineral compositionof pomegranate cv. Naderi with spraying fertilizer containing amino acid under drought stress conditions

نویسندگان [English]

  • Sakineh Hasanzade 1
  • Fariborz Habibi 1
  • Mohammad Esmaeil Amiri 2
  • Mohammad Reza Naeini 3
1 Former M.Sc. Student, Faculty of Agriculture, University of Zanjan, Iran
2 Professor, Faculty of Agriculture, University of Zanjan, Iran
3 Assistant Professor, Qom Water and Soil Research Center, Iran
چکیده [English]

In order to the study of aril and leaf mineral composition of pomegranate cv. Naderi with spraying fertilizer containing amino acid under drought stress conditions, an experiment was conducted as a split plot based on randomized complete block design. Irrigation treatment in three levels (100%, 75% and 50% required water) and fertilizer containing amino acids in four levels (0, 2, 3 and 4 milliliter per liter) were applied. Spraying was done in four stages (before anthesis, after fruit set, rapid growth phase and two weeks before harvest). The results showed increasing water stress decreased nitrogen (5.97%), phosphorus (0.37%) and potassium (0.07%) and increased iron (230 ppm) in aril and potassium (0.08%) and iron (348.84 ppm) in leaves in comparison to the control without water stress. Increasing level of amino acid fertilizer increased nitrogen (8.75%), potassium (0.1%) and iron (235.92 ppm) in the aril and level of phosphorus (0.64%) in the leaves but decreases the amount of potassium (0.07%) and iron (324.19 ppm) in the leaves. Based on the results it can be stated that spraying of fertilizer containing amino acids significantly improved the nutritional value of pomegranate and reduced the harmful effects of drought stress.

کلیدواژه‌ها [English]

  • Drought stress
  • fertilizer containing amino acid
  • nitrogen
  • potassium
  • Water requirement
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