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Vegetative propagation of Litsea monopetala, a wild tropical medicinal plant: Effects of indole-3-butyric acid (IBA) on stem cuttings

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Journal of Forestry Research 2011年第3期22卷 409-416页

作者： Tarit Kumar Baul Mohammad Mosharraf Hossain Mohammad Mezbahuddin Mohammed Mohiuddin School of Environment Natural Resources and Geography Bangor University Bryn Eithin Room K35 St. Mary's Site Bangor LL57 1DZ UK. Institute of Forestry and Environmental Sciences University of Chittagong Chittagong 4331 Bangladesh Research Fellow Graduate School of Engineering Osaka University Suita Osaka 565-0871 Japan Department of Renewable Resources University of Alberta Canada Professor Institute of Forestry and Environmental Sciences University of Chittagong Chittagong 4331 Bangladesh

In this study we investigated the rooting ability and the growth performance of juvenile single-node leafy stem cuttings of Litsea monopetala （Roxb） Pers. collected from two mature mother trees preserved in the hill forest of Chittagong district, Bangladesh. The rooting ability of cuttings was studied under 0%, 0.1%, 0.2% and 0.4% indole-3-butyric acid （IBA） treatments. Significantly better rooting response （p ≤ 0.05） was observed with 0.1% IBA compared to control （0% IBA）. The mean number of roots and the length of the longest root of cuttings in different treatments showed no significant difference （p≤0.05）. After transfer into polythene bags from non-mist propagator, rooted cuttings treated with 0%, 0.1% and 0.2% IBA demonstrated the highest （100 ± 0.00%） survival capacity. The mean number of shoots developed in cuttings in the polythene bags in first three weeks varied significantly （p≤0.05） among the treatments. Effects of three fertilizer treatments, viz. T0 （no fertilizer）, T1 （10g Urea, 20g TSP, 10g MOP dissolved in 1 L water） and T2 （10g Urea, 20g TSP, 10g MOP dissolved in 2 L water） on initial growth ofstecklings were also measured over a 90-days period. The increment of leaf area of stecklings was significantly higher （p≤0.05） under T0 compared with that under T1 and T2 while the increment of stem length, collar diameter and root biomass varied insignificantly among different fertilizer treatments. The results suggest that rooting juvenile single-node leafy stem cuttings could be an effective mean of regenerating L. monopetala. The application of 0.1% IBA concentration is recommended for rooting of juvenile leafy stem cuttings and application of fertilizer appeared unnecessary for the subsequent growth of stecklings in polythene bags.

关键词： IBA Litsea monopetala non-mist propagator rooting stem cutting

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Clonal propagation of Bambusa vulgaris by leafy branch cuttings

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Journal of Forestry Research 2011年第3期22卷 387-392页

作者： M.S. Islam M.K. Bhuiyan M. M. Hossain M.A. Hossain Institute of Forestry and Environmental Sciences University of Chittagong Chittagong-4331 Bangladesh

Bambusa vulgaris Schrad ex wendl is a widely cultivated bamboo species in rural Bangladesh for its versatile uses. The vegetative propagation becomes the only viable alternative for this species because B. vulgaris does not set seed after sparse flowering, which makes seedling progenies unavailable. A low-cost propagation trial was conducted to explore the clonal propagation techniques for the species with two types of small branch cuttings, nodal leafy cuttings and tip cuttings. The cuttings, after treating with 0, 0.1%, 0.4%, and 0.8% IBA solutions, were kept in non-mist propagator to let them to root for assessing the rooting ability. The cuttings were rooted in four weeks and were allowed to grow in the polybags for 10 months under nursery condition to assess their steckling capacity. The study reveals that both types of branch cuttings are able to develop roots, shoots, to survive and to form rhizome under the nursery condition. Rooting ability of the cuttings was significantly enhanced by the application of rooting hormone - IBA. The highest rooting percentage in nodal leafy cuttings and the tip cuttings （56.67% and 51.0%, respectively） were observed in 0.8% IBA treatment, followed by 0.4% IBA and the lowest （34.3% and 30.0%, respectively） was in control. The highest number of root developed per cutting （9.77 and 8.33 in nodal leafy cuttings and the tip cuttings, respectively） was also obtained from the cuttings treated with 0.8% IBA solution, followed 0.4% IBA treatment and the lowest （3.1 and 2.1, respectively） was in the cuttings without treatment. However, the length of the longest root varied significantly neither with the cutting types nor the concentrations of IBA solution. Survival percentage of the stecklings in nursery condition was significantly enhanced by IBA.

关键词： Bambusa vulgaris leafy branch cuttings non-mist propagator rooting ability steckling capacity

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Clonal propagation of guava (Psidium guajava Linn.) by stem cutting from mature stockplants

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Journal of Forestry Research 2006年第4期17卷 301-304页

作者： A.T.M. Abdullah M.A. Hossain M.K. Bhuiyan Institute of Forestry and Environmental Sciences University of Chittagong Chittagong-4331 Bangladesh

The study describes the scope of clonal propagation of guava (Psidium guajava Linn.) by stem cutting collected from mature stockplants. Cuttings were treated with 0, 0.2%, 0.4% and 0.8% IBA solution and rooted in the non-mist propagator. Rooted cuttings were allowed to grow in the polybags filled with soil and cow-dung mixed in the ratio of 3: 1 (by volume) for three months to assess the steckling capacity and initial growth performance. The study reveals that the species is amenable for clonal propagation by mature stem cutting. The highest rooting percentage (60%) was observed in the cuttings treated with 0.4% IBA solution followed by 0.2% IBA and the lowest was in controlled cuttings. The maximum number of primary root (32.7) was developed in the cuttings treated with 0.8% IBA solution followed by 0.4% IBA and the lowest was in the cuttings without IBA treatment. The highest survival percentage (70.9) was observed in the cuttings rooted with 0.4% IBA treatment and the lowest (58.3) was in the cuttings without any treatment. However, there was no significant variation in height growth of cutlings due to IBA treatments in rooting.

关键词： Psidium guajava Linn. non-mist propagator Stockplants Stem cutting Rooting ability Stecklings

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Vegetative propagation of Holarrhena pubescens,a wild tropical medicinal plant:effect of indole-3-butyric acid (IBA) on stem cuttings

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Forestry Studies in China 2010年第4期12卷 228-235页

作者： Tarit Kumar BAUL Mohammad MEZBAHUDDIN Mohammad Mosharraf HOSSAIN Mohammed MOHIUDDIN School of Environment Natural Resources and GeographyBangor University Department of Renewable Resources University of Alberta Institute of Forestry and Environmental Sciences University of Chittagong Graduate School of Engineering Osaka University

The present study investigated the rooting ability and growth performance of juvenile single-node leafy stem cuttings of Holarrhena pubescens, collected from two mature mother trees preserved in the hill forests of Chittagong District, Bangladesh. The rooting ability of cuttings was studied with 0, 0.1%, 0.2% and 0.4% indole-3-butyric acid （IBA） treatments. The better rooting response was observed with 0.1% IBA, but was insignificant compared to other treatments. The mean number of roots and length of the longest root of cuttings in different treatments showed no significant difference. After transfer to the polythene bags from a nonmist propagator, rooted cuttings treated with 0.4% IBA demonstrated the highest （50.00± 0.78%） survival capacity. Regarding initial growth of established rooted cuttings （stecklings） over a 90 d period, the increment of stem length of stecklings under T2 （10 g Urea, 20 g TSP, 10 g MOP dissolved in 2 L water） and leaf area expansion of stecklings under T1 （10 g Urea, 20 g TSP, 10 g MOP dissolved in 1 L water） was significantly higher （p 〈 0.05） compared with that under TO （no fertilizer）. The increment of collar diameter and root biomass production varied insignificantly among different fertilizer concentrations, although stecklings under T2 showed the better performance. The results suggest that rooting juvenile single-node leafy stem cuttings can be an effective mean of regenerating H. pubescens. The application of 0.1% IBA or without IBA is recommended for rooting juvenile leafy stem cuttings. Application of fertilizer appears necessary for subsequent growth of stecklings in polythene bags.

关键词： IBA non-mist propagator rooting stem cutting stecklings

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