نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه علوم زراعی و باغی، دانشکده کشاورزی و صنایع غذایی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

2 استاد، گروه علوم باغبانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران.

3 استادیار، موسسه تحقیقات ثبت گواهی و بذر نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران.

4 استادیار، گروه علوم زراعی و باغی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران.

چکیده

در حال حاضر یکی از مشکلات تولیدکنندگان خرما در مناطق مختلف کشور، عدم میوه­نشینی مطلوب نهال­های کشت­بافتی برخی ارقام می­باشد. این پژوهش به‌منظور بررسی اثرات گرده ارقام مختلف بر میوه­نشینی نخل­های خرمای کشت­بافتی و پاجوشی ارقام برحی، پیارم و مضافتی در باغ ایستگاه تحقیقاتی جهرم طی سال­­های 98ـ 1397 با استفاده از آزمایش فاکتوریل با سه فاکتور در قالب طرح پایه بلوک­های کامل تصادفی در سه تکرار انجام شد. فاکتور اول گرده­های مختلف با پنج سطح (شامل کدهای 7001 (شاهد)، 7005، 7013، 7030 و بویر11 حاصل از کشت­بافت (B11)) و فاکتور دوم نوع رقم در سه سطح (برحی، پیارم و مضافتی) و فاکتور سوم نوع نهال در دو سطح (کشت­بافت و پاجوش) بر 90 اصله درختان 10ساله اجرا شد. نتایج نشان داد بیش­ترین درصد تشکیل میوه­ طبیعی در روش تکثیر پاجوش در رقم مضافتی با گرده­های 7013 و 7030 و گرده 7013 در رقم برحی مشاهده شد. کم­ترین درصد تشکیل میوه طبیعی در روش کشت­بافت در رقم برحی با گرده 7001 (شاهد) دیده شد. به‌طور کلی، گرده­های 7013 و 7030 به‌عنوان مناسب­ترین پایه گرده­زا برای افزایش درصد تشکیل­میوه طبیعی و کاهش میوه­های پارتنوکارپی و ریزش­کرده ارقام برحی، پیارم و مضافتی­حاصل از کشت­بافت و پاجوش انتخاب شدند.

کلیدواژه‌ها

عنوان مقاله [English]

An Investigation into the effect of different pollen sources on fruit set of palms obtained from tissue culture and offshoot of Barhi, Piaroom and Mazafati cultivars

نویسندگان [English]

  • Hamid Zargari 1
  • Alireza Talaie 2
  • Yahya Dehghani Shurki 3
  • Vahid Abdossi 4

1 Ph.D. Candidate, Department of Agronomy and Horticulture Science, College of Agriculture and Food Industry, Science and Research Branch, Islamic Azad University, Tehran, Iran.

2 Professor, Horticultural Science Department, College of Agriculture and the Natural Resources University of Tehran, Karaj, Iran.

3 Assistant Professor, Seed and Plant Certification and Registration Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.

4 Assistant Professor, Agronomy and Horticulture Science, College of Agriculture and Food Industry, Science and Research Branch, Islamic Azad University, Tehran, Iran.

چکیده [English]

One of the problems faced by Phoenix dactylifera L growers in different parts of the country is the lack of a favorable fruit set for tissue culture seedlings of some cultivars recently. This study is conducted to investigate the effects of pollen of different cultivars on the fruit set of Phoenix dactylifera L tissue culture and offshoot palms of Barhi, Piaroom, and Mazafati cultivars in the garden of Jahrom Agricultural Research Station. During the years 2018 - 2019, in a factorial experiment, three factors have been performed in three replications with a randomized complete block design. The first factor involves different pollen with five levels (i.e., codes 7001 (control), 7005, 7013, 7030, and Boyer 11 obtained from tissue culture (B11)) with the second factor being the cultivar type in three levels (Barhi, Pyaram, and Mazafati), and  the third one, the type of seedlings, all applied on 90 ten-year-old trees in two levels (tissue culture and offshoot). Results show that the highest percentage of natural fruit set has been observed in Mazafati cultivar with 7013 and 7030 pollens and 7013 pollen in Barhi cultivar. The lowest percentage of natural fruit set belongs to tissue culture method in Barhi cultivar with pollen 7001 (control). In general, 7013 and 7030 pollens have been identified as the most suitable pollinator base to increase the percentage of normal fruit set and reduce parthenocarpic and fallen fruits of Barhi, Piaroom, and Mazafati cultivars obtained from tissue culture and offshoot.

کلیدواژه‌ها [English]

  • Fertility
  • Date cultivars
  • Pollen effects
  • Tissue culture
  • Offshoot
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