بررسی تأثیر محلو‌ل‌پاشی عناصر ریزمغذی روی و منگنز بر برخی ویژگی‌های کمی و کیفی میوه پرتقال واشنگتن‌ناول (Citrus sinensis CV. Navel)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی سابق کارشناسی‌ارشد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه هرمزگان، ایران

2 استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه هرمزگان، ایران

3 استادیار مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان قزوین، سازمان تحقیقات، آموزش و ترویج کشاورزی، قزوین، ایران

چکیده

کمبود عناصر ریز مغذی یکی از عوامل اصلی کاهش عملکرد کمی و کیفی میوه مرکبات می‌باشد. این پژوهش برای بررسی اثر تیمارهای قبل از برداشت سولفات­روی و سولفات­منگنز بر کمیت و کیفیت میوه پرتقال نافی به­صورت آزمایش فاکتوریل در قالب طرح بلوک کامل تصادفی با سه تکرار انجام شد. فاکتورهای آزمایش شامل سولفات­روی در چهار سطح صفر، 2، 4 و 6 گرم در لیتر و سولفات­‌منگنز در چهارسطح صفر، 1، 2 و 4 گرم در لیتر بودند که  طی دو مرحله ( 15روز قبل از تمام‌گل و 15روز بعد از تمام‌گل) اعمال شدند. نتایج نشان داد هر دو نوع کود مورد استفاده، کیفیت میوه پرتقال را در زمان برداشت، در مقایسه با شاهد بهبود بخشیدند. به‌طوری‌که در درختان  محلول‌پاشی شده، تعداد میوه، طول و قطر میوه، وزن میوه، حجم ‌آب میوه، مواد جامد‌ محلول و ویتامین ث بیشتر از درختان شاهد بود. در اغلب صفات مورد ارزیابی، مؤثرترین تیمارها، غلظت 4 گرم در لیتر سولفات­روی + 1 گرم درلیتر سولفات­منگنز بود. هم‌چنین نتایج اثر متقابل  نشان داد که در اغلب صفات مورد بررسی، تیمارهای ترکیبی 4 گرم سولفات­روی + 1 گرم سولفات­منگنز، 6 گرم سولفات­روی + 1 گرم سولفات­منگنز و 6 گرم سولفات‌روی + 4 گرم سولفات­منگنز، نتایج بهتری نشان دادند. به‌طورکلی می­توان گفت که کاربرد کود سولفات­روی و سولفات­منگنز در مقایسه با شاهد توانستند کیفیت و کمیت میوه پرتقال را در زمان برداشت افزایش دهند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The effect of Zn and Mn micronutrients spraying on some quantitative and qualitative characteristics of Washington Navel orange (Citrus sinensis CV. Navel)

نویسندگان [English]

  • Sara Khabazi 1
  • Farzin Abdollahi 2
  • Mostafa Ghasemi 3
  • Somayeh Rastegar 2
1 Former M. Sc. Student , Faculty of Agriculture, University of Hormozgan, Iran
2 Assistant Professor, Faculty of Agriculture, University of Hormozgan, Iran
3 Assistant Professor, Qazvin Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extention Organization (AREEO), Qazvin, Iran
چکیده [English]

Micronutrient deficit is the one of major factors in reduction of citrus yield and quality. This study was conducted to investigate the effect of pre harvest treatments of zinc and manganese sulfate on quantity and quality characteristics of Washington Navel orange fruit at harvest time as factorial experiment based on randomized complete block design with three replications. Experimental factors were spraying of zinc sulfate (0, 2, 4 and 6 g lit-1) and manganese sulfate (0, 1, 2 and 4 g lit-1) in two stages, the first stage,15 days before full bloom (March 2nd) and second stage15 days after full bloom (April 9th). Results indicated that both zinc sulfate and manganese sulfate could improve the quality of orange fruit in the time of harvest as compared to control. Although, sprayed fruits had higher fruit number, length, diameter and weight, juice content, total soluble solid (TSS), Vitamin C as compared to control. Most effective treatments in all factors were obtained in 4 g lit-1 zinc sulfate + 1 g lit-1 manganese sulfate. Over all, results showed that combined treatment including 4 g lit-1 zinc sulfate + 1 g lit-1 manganese sulfate, 6 g lit-1 zinc sulfate + 1 g lit-1 manganese sulfate and 6 g lit-1 zinc sulfate + 4 g lit-1 manganese sulfate had better results. Generally, both zinc sulfate and manganese sulfate improved fruit quality and quantity during the harvest time compared to the control.

کلیدواژه‌ها [English]

  • Manganese sulfate
  • spraying
  • TSS
  • vitamin c
  • Zinc sulfate
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