نوع مقاله : مقاله پژوهشی

نویسندگان

1 عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی استان گلستان

2 استادیار گروه مهندسی آب دانشکده کشاورزی دانشگاه فردوسی مشهد

3 دانشیار گروه باغبانی دانشکده کشاورزی دانشگاه گیلان

4 دانشیار گروه مهندسی آب دانشکده کشاورزی دانشگاه فردوسی مشهد

5 استادیار گروه باغبانی دانشکده کشاورزی دانشگاه فردوسی مشهد

چکیده

این آزمایش به منظور تأثیر دور آبیاری و بستر کشت بر عملکرد و برخی پارامترهای رشد گوجه­‌فرنگیگلخانه‌ای(CV. Hamra) در سال زراعی 82-81 در گلخانة تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد.  آزمایش بر اساس طرح کرت‌های خردشده در قالب کاملاً تصادفی با چهار تکرار انجام شد.  دور آبیاری در سطح 4، 8 و 12 بار در روز در کرت‌های اصلی و سه بستر پرلیت، لیکا و مخلوط پرلیت و لیکا در کرت‌های فرعی قرار گرفتند.  فاکتورهایی نظیر تعداد گره، اندازة میانگره روی ساقه اصلی، طول و قطر ساقه، تعداد برگ بوته، وزن خشک ساقه و برگ، تعداد گل­آذین، تعداد میوه، میانگین وزن میوه و عملکرد به ازای بوته اندازه‌گیری شد.  به طور کلی بسیاری از پارامترهای رشد اندازه‌گیری­شده تحت تأثیر تیمارهای مختلف دور آبیاری قرار نگرفتند.  عملکرد و میانگین وزن میوه در هر بوته تحت تأثیر دور آبیاری قرار گرفت به طوری که میانگین وزن میوه و عملکرد در دور آبیاری 12 بار در روز، بیشترین مقدار بود.  بین بسترهای مورد آزمایش از نظر کلیه صفات مورد مطالعه اختلاف معنی‌داری وجود نداشت.  بیشترین عملکرد و میانگین وزن میوه مربوط به بستر لیکا با دور آبیاری 12 بار در روز بود که اختلاف معنی‌داری با دور آبیاری 8 بار در روز و بستر لیکا نداشت.

عنوان مقاله [English]

Influence of Irrigation Interval and Substrates on Production of Tomato (CV. Hamra) in Soilless (Bag) Culture

چکیده [English]

This study was conducted to investigate the effects of irrigation frequency and substrates on some parameters of greenhouse tomato (CV. Hamra) during 1381-1382 at research greenhouse of agriculture college, in Ferdowsi University of Mashhad. The experiment was based on split plots in the form of completely randomized design and in four replications. Irrigation frequency in three levels of 12, 8, and 4 times per day at primary plots, and three substrates of Perlite, leca, and mixture of Perlite and leca at secondary plots. Parameters such as number of ties, ties spacing on main trunk, length and diameter of main trunk, dry weight of stem and leaf, number of fruits, and mean fruit weight were measured. Generally most of parameters, except crop production and mean weight of fruit per plant, did not influenced by different irrigation treatments. Mean weight of fruit and crop production were at their highest level under 12-day irrigation frequency. No significant difference was found for all of the parameters and under different substrates. The highest crop production and mean fruit weights were due to leca substrate and 12-day irrigation frequency. There were no significant differences as compared to 8-day irrigation frequency.

کلیدواژه‌ها [English]

  • Bag Culture
  • Irrigation interval
  • Leca
  • Perlite
  • Soilless culture
  • Substrate
  • tomato
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