امکان سنجی جایگزینی بستر کشت کوکوپیت با بسترهای کشت تولید داخل جهت پرورش گیاه ژربرا (Gerbera jamesonii)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه بیوتکنولوژی گیاهان زینتی، جهاد دانشگاهی خراسان رضوی

2 بیوتکنولوژی و به نژادی گیاهی، دانشکده کشاورزی، دانشگاه فردوسی مشهد

چکیده

در تولید تجاری ژربرا به طور متداول از بستر کشت کوکوپیت: پرلیت استفاده می‌گردد. با توجه به واردات بی‌رویه کوکوپیت از کشورهای جنوب شرق آسیا، جایگزینی این بستر کشت با بسترهای کشت تولید داخل، می‌تواند گامی موثر در جهت کاهش وابستگی به واردات نهاده‌های اولیه باشد. بدین منظور در پژوهش حاضر تاثیر انواع مختلف بستر کشت بر مراحل رشد رویشی و زایشی گیاه ژربرا در قالب طرح بلوک کامل تصادفی با 8 تیمار در 6 تکرار مورد ارزیابی قرار گرفت و پارامترهای رشدی از جمله تعداد برگ تولیدی، وزن تر و خشک اندام هوایی، میزان کلروفیل a، کلروفیل b، کلروفیل کل، کاروتنوئید، وزن تر و خشک ریشه، درصد کلروز برگی، درصد نکروز برگی، تعداد گل، قطر طبق گل، ارتفاع ساقه گل دهنده، تعداد روز تا آغاز گلدهی، قطر انتهای ساقه گل دهنده و قطر وسط ساقه گل دهنده و عمر گلجایی بررسی شد. نتایج نشان داد گیاهچه‌های پرورش یافته در بستر کشت کمپوست قارچ: پرلیت و پس از آن بستر کشت ماسه بیشترین میزان وزن خشک ریشه، اندام هوایی و تعداد برگ را به خود اختصاص دادند که این امر نشان دهنده پتانسیل بالا جهت ورود به فاز زایشی می‌باشد. کمترین تعداد روز تا گلدهی و بیشترین تعداد گل تولیدی نیز در این دو بستر کشت حاصل شد. گیاهان تحت تیمار خاک اره: پرلیت و پرلیت شکری رشد رویشی و زایشی مطلوبی را از خود نشان ندادند و در بستر کشت خاکبرگ: پرلیت نیز به دلیل بالا بودن EC بستر کشت، درصد کلروز و نکروز برگی بالایی در نمونه‌ها مشاهده شد.
 

کلیدواژه‌ها

عنوان مقاله [English]

Feasibility Study of Replacing Cocopeat Substrate with Domestically Produced Substrates for the Cultivation of Gerbera (Gerbera jamesonii)

نویسندگان [English]

  • Mahdiyeh Kharrazi 1
  • Ahmad Sharifi 1
  • Saba Nejati Zadeh 2
  • Azadeh khadem 1
  • Maryam Moradian 1
چکیده [English]

Cocopeat: perlite mix is a common substrate in gerbera commercial production. With regard to the uncontrolled import of cocopeat from Southeast Asia, replacing this substrate with domestic production substrates could be an effective step to reduce dependence on imports of primary inputs for production. In this study, the effects of different types of substrates on the vegetative and reproductive stages of Gerbera were evaluated in a randomized complete block design with 8 treatments in 6 replications. Growth parameters including number of produced leaves, fresh and dry weight of shoot, chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, fresh and dry weight of roots, leaf chlorosis percentage, leaf necrosis percentage, flower number, flower diameter, stalk height, number of days to flowering, middle diameter of stalk, end diameter of stalk and vase life were investigated. The results showed that plantlets grown in mushroom compost: perlite and then sandy substrate had the highest leaf number, shoot and root dry weight, indicating high potential for entering the reproductive phase. The lowest number of days to flowering and the highest number of flowers were obtained in these two culture media. Plants that were treated with sawdust: perlite and perlite did not show desirable vegetative and reproductive growth and due to high substrate EC in leaf mold: perlite, the percentage of leaf chlorosis and necrosis was significant.
 

کلیدواژه‌ها [English]

  • Flower Diameter
  • Leaf Chlorosis Percentage
  • Mushroom Compost
  • Substrate EC
  • Total Chlorophyll

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دانش کشاورزی وتولید پایدار
دوره 29، شماره 4
دی 1398
صفحه 277-291

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