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بررسی اثر مالچ (Nucleus (MA-19 بر روی رویش بذر و رشد نهال دو گونه تاغ Haloxylon و قره‌داغNitraria

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار پژوهشی، بخش تحقیقات بیابان، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

2 کارشناس ارشد پژوهشی، بخش تحقیقات بیابان، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

3 استاد پژوهشی، بخش تحقیقات مرتع، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

چکیده

      به‌منظور جایگزینی مالچ‌های نفتی، در این تحقیق اثر یک نوع مالچ غیرنفتی تخریب‌پذیر با نام تجاری Nucleus (MA-19) بررسی شد. اجرای این تحقیق با این هدف دنبال شد که اگر عاری بودن اثرهای منفی مالچ مذکور بر جوانه‌زنی و رشد نهال در آزمایش‌ها به اثبات برسد، از آن بتوان در پروژه‌های تثبیت بیولوژیکی خاک استفاده نمود. انجام این مطالعه طی سال‌های 98-1396 در مؤسسه تحقیقات جنگل‌ها و مراتع کشور بر روی بذرها و نیز نهال تاغ  (Haloxylon persicum) و قره‌داغ (Nitraria schoberii)به‌صورت کاشت در گلدان در فضای باز اجرا شد. قبل از انجام آزمایش‌های جوانه‌زنی، از قوه نامیه بذرها که از بانک ژن مؤسسه متبوع تهیه شده بود، اطمینان حاصل گردید. پس از تعیین درصد جوانه‌زنی بذرها (به میزان90-85 درصد)، نسبت به کاشت بذرها در محیط گلخانه اقدام شد. سپس بلافاصله سطح خاک گلدان‌ها برای مقایسه با شاهد، با مالچ به‌صورت اسپری تیمار شد. در آزمایش‌های گلدانی که به‌صورت کاشت نهال بود، پس از استقرار نهال‌ها در گلدان، سطح خاک با مالچ مذکور اسپری شد. آبیاری گلدان‌ها به‌صورت یکسان و به‌اندازه ظرفیت زراعی خاک و براساس منحنی رطوبت خاک بود که با توجه به شرایط آب و هوایی و دما در هر ماه حداکثر فقط یک مرتبه انجام شد. آزمون آماری و مقایسه میانگین‌ها طبق نتایج T-Test نشان دادند که تیمار مالچ هیچگونه عوارض منفی بر روی جوانه‌زنی، زنده‌مانی، ارتفاع و قطر یقه نهال‌ها ندارد و از این نظر مالچ استفاده شده مانند تیمار شاهد (بدون مالچ) عمل می‌کند

کلیدواژه‌ها

عنوان مقاله [English]

Investigation of the effect of Nucleus Mulch (MA-19) on seed germination and seedlings growth of Holoxylon and Qara-Dagh Nitraria

نویسندگان [English]

  • Shahram Banedjschafie 1
  • Mohammad Khosroshahi 1
  • Leila Kashi Zenouzi 2
  • Aliashraf Jafari 3

1 Associate Prof., Desert Research Division, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

2 Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

3 Prof., Research Institute of Forests and Rangelands, Rangeland Division, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

چکیده [English]

    To replace oil mulches, this study examined the effect of degradable non-oil mulch under the brand name Nucleus (MA-19). This research assumed that the application of the mentioned mulch in biological stabilization projects has no adverse effects on seed germination and seedling growth. The effect of mulch was studied on the establishment of Haloxylon persicum and Nitraria schoberii in a pot experiment in weather conditions of Research Institute of Forests and Rangeland in Tehran, Iran in 2017-2019. Before the experiment, the seed germination test was made to ensure seeds which having standard germination. After determining the germination percentage of seeds (85-90%), seeds were planted in the greenhouse. Then, the soil surface of the pots was sprayed with mulch for comparison with the control. On the other hand, in potting experiments, which were in the form of planting seedlings, after placing the seedlings in the pot, the soil surface was sprayed with the mentioned mulch. The irrigation of the pots was uniform and equal to the field capacity of the soil and based on the soil moisture curve, which was done only once a month, depending on the weather conditions and temperature. Statistical test and comparison of means according to t-test results showed that mulch treatment did not have any negative effects on germination, viability, height, and diameter of seedlings, and in this regard, used mulch behaves as a control treatment (without mulch).

کلیدواژه‌ها [English]

  • Seedling height
  • germination
  • diameter seedling
  • viability
  • petroleum mulches
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تحقیقات مرتع و بیابان ایران
دوره 28، شماره 1 - شماره پیاپی 82
فروردین 1400
صفحه 106-117
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هم رسانی
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