اثر زمان قلمه‌گیری، طول قلمه و هورمون بر ریشه‌زایی و جوانه‌زنی قلمه‌های بنگرو (Vitex pseudo-negundo)

نوع مقاله : علمی- پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد جنگل‌شناسی و اکولوژی جنگل، دانشکده منابع طبیعی، دانشگاه صنعتی خاتم‌الانبیاء بهبهان، بهبهان، ایران

2 دانشیار، گروه جنگل‌داری، دانشکده منابع طبیعی، دانشگاه صنعتی خاتم‌الانبیاء بهبهان، بهبهان، ایران

3 دانشیار، گروه جنگل‌داری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران

4 کارشناس ارشد علوم باغبانی، شهرداری بهبهان، بهبهان، ایران

چکیده

پژوهش پیش‌رو با هدف بررسی تکثیر غیرجنسی درختچه بنگرو (Vitex pseudo-negundo (Hausskn.) Hand-Mzt) در قالب آزمایش فاکتوریل بر مبنای طرح کاملاً تصادفی در چهار تکرار و 30 قلمه در هر تکرار در گلخانه شهرداری بهبهان انجام شد. عامل‌های مورد آزمایش شامل زمان قلمه‌گیری در شش سطح (اول و پانزدهم دی، اول و پانزدهم بهمن، اول و پانزدهم اسفند)، طول قلمه در سه سطح (15، 20 و 25 سانتی­متر) و هورمون نفتالین‌استیک‌اسید (NAA) در دو سطح (با هورمون و بدون هورمون) بودند. نتایج نشان داد که قلمه­‌های تهیه‌شده در اول بهمن، اول اسفند و پانزدهم اسفند دارای بیشترین درصد ریشه­‌زایی، جوانه‌­زنی و تعداد ریشه بودند. بیشترین درصد ریشه­‌زایی و جوانه‌­زنی در قلمه­‌های 15 و 20 سانتی­‌متری و بیشترین تعداد ریشه و وزن تر و خشک ریشه در قلمه­‌های 25 سانتی­‌متری مشاهده شد. اثر متقابل هورمون، زمان قلمه‌­گیری و طول قلمه، نشان‌دهنده بیشتر بودن وزن تر، وزن خشک و قطر ریشه در قلمه­‌های 25 سانتی‌متری هورمون‌دار تهیه‌شده در اول اسفند بود. استفاده از هورمون بر درصد ریشه­‌زایی، جوانه­‌زنی و طول ریشه تأثیر منفی داشت. در این مطالعه، بهترین نتیجه مربوط به قلمه‌­های 25 سانتی‌متری تهیه‌شده در اوایل اسفند و بدون استفاده از هورمون بود.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of cutting time, cutting length and hormone on rooting and germination of Vitex pseudo-negundo (Hausskn.) Hand-Mzt. cuttings

نویسندگان [English]

  • Fereshteh Agvan 1
  • Reza Basiri 2
  • Vahid Etemad 3
  • Ghodratollah Ghasempour 4
1 M.Sc. student Forest Ecology and Silviculture, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
2 Associate Prof., Department of Forestry, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
3 Associate Prof., Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran
4 M.Sc. Horticultural Science, Behbahan Municipality, Behbahan, Iran
چکیده [English]

Vitex pseudo-negundo (Hausskn.) Hand-Mzt. is a shrub that is height of about 1-2 meters. To study vegetative propagation of Vitex pseudo-negundo experimental was conducted using a‌ 6 × 3 × 2 factorial design based on completely randomized design with 4 replications and 30 cuttings per treatment in Behbahan municipalities' greenhouse. The experiment factors included: Cutting time at 6 levels (22 December and 5 January, 21 January and 4 February, 20 February and 6 March), Cutting length at 3 levels (15, 20 and 25 cm) and NAA hormone at 2 levels (with hormones and hormone-free). Results showed that the cuttings taken in 21 January, 20 February and 6 March have the highest rooting and germination percent and root number. The highest (rooting and germination percent) and (root number and root dry and fresh weight) were observed in length cuttings of 15, 20 cm and 25 cm respectively. The interaction effect of hormone and cutting time and cutting length, indicator being more dry weight, fresh weight and root diameter in cuttings with hormone taken in 20 February with a length of 25 cm. The use of hormone has the negative effect on rooting and germination percent and root length. In this study, the best result was achieved for cuttings taken in 20 February, with a length of 25 cm and without the use of hormones.

کلیدواژه‌ها [English]

  • Asexual reproduction
  • Behbahan
  • cuttings
  • Dry weight

مراجع

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