نوع مقاله : مقاله پژوهشی
نویسنده
- دکتری آبیاری و زهکشی، پژوهشگر پژوهشکده زعفران، دانشگاه تربت حیدریه، تربت حیدریه، ایران.
چکیده
امروزه استفاده از افزودنیهای آلی و معدنی در خاک جهت عملکرد بهتر محصول و کارآیی بالاتر آب مصرفی در جهان در حال گسترش است. بدین منظور تحقیقی در قالب طرح بلوک کامل تصادفی با دو فاکتور بیوچار تولیدی زیستی (بدون اعمال بیوچار B0، اعمال 10 تن در هکتار B1 و اعمال 15 تن در هکتار B2) و تنش آبی (S0 بدون اعمال تنش (5 مرحله آبیاری)، S1 اعمال تنش آبیاری(3 مرحله آبیاری)) انجام شد. نتایج میانگین مربعات نشان داد، صفات کمی (تعدادگل، وزن تازه گل و وزن خشک کلاله) زعفران در تقابل دو فاکتور در سطح احتمال یک درصد دارای ارتباط معنی‌دار شده و نتایج میانگین مربعات صفات کیفی (پیکروکروسین،کروسین، سافرانال و رطوبت) زعفران در تقابل دو فاکتور غیر معنی‌دار شدند. نتایج نشان دادند بیش‌ترین مقدار برای صفات کمی تعداد گل و وزن خشک کلاله برای تیمار B0S1 به ترتیب مقادیر 7/74 عدد گل در یک متر مربع و 41/0 گرم در یک متر مربع شد. همچنین برای صفات کیفی پیکروکروسین و کروسین با حداکثر جذب، تیمار B2S1 به ترتیب مقادیر 237 و 82 بالاترین و بهترین مقدار در بین تیمارهای تحقیق مشاهده شد. تنش کمآبی و بیوچار در عملکرد زعفران تأثیر کاهشی نداشته است و اثرات مثبت در عملکرد کمی و کیفی نیز مشاهده شده است.
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