scholarly journals Stem cuttings and substrates in Dovyalis asexual propagation

2018 ◽  
Vol 8 (4) ◽  
pp. 587-595 ◽  
Author(s):  
André Renato Rinaldi ◽  
Fabíola Villa ◽  
Daniel Fernandes da Silva ◽  
Rafael Massahiro Yassue

The objective of this study was to evaluate the asexual propagation of Dovyalis, through the use of substrates and cuttings. Three experiments were conducted in Marechal Cândido Rondon, Paraná State, Brazil, and the first experiment consisted of three removal positions of the cuttings (apical, middle and basal) x 4 Indole butyric acid (IBA) concentrations (0 mg L-1, 1000 mg L-1, 2000 mg L-1 and 3000 mg L-1); the second experiment evaluated the number of leaves in the cuttings (2, 4 and 6) x 3 cutting sizes (10, 15 and 20 cm); and the third experiment evaluated four substrates for rooting. The experiment was carried out in a randomized blocks design, with the first in a 3x4 and the second in a 3x3 factorial, respectively, containing 4 repetitions of 15 cuttings. The third experiment consisted of 5 repetitions of 15 cuttings. After the IBA treatment, the cuttings were taken to rooting in sandy beds during 70 days. The agronomical variables were evaluated. Basal and middle cuttings resulted in root systems with better development. The use of 1666 mg L-1 of IBA favors the Dovyalis cuttings rooting. Cuttings with 15 and 20 cm with four leaves favors the Dovyalis vegetative propagation. Dovyalis cuttings develop better on substrates containing latosol and vermiculite.

2018 ◽  
Vol 12 (2) ◽  
pp. 491-499
Author(s):  
Aurea Portes Ferriani ◽  
Cícero Deschamps ◽  
Wanderlei Do Amaral ◽  
Luiz Everson da Silva

Native Piper species present significant repellent, antimicrobial, inseticidal, anti-tumor and anti-protozoal biological activities. Studies on new species can discover unpublished potentialities and vegetative propagation for the development of cultivation protocols and reduce the natural extraction. The objective of this study was to evaluate the rooting of P. arboreum, P. cernuum and P. diospyrifolium stem cuttings with different treatments containing doses of indole butyric acid (0, 500; 1,000; 1,500; 2,000 and 3,000 mg L-1). Branches were collected in the “Bom Jesus Biological Reserve”, Parana state, Brazil. The cuttings, with a length of 12 cm and average diameter of 6 mm, were placed in 53 cm3 plastic tubes with the commercial substrate Tropstrato HP® and intermittent misting. After 90 days, the survival, mortality, cuttings with new shoots, number and length of the three main roots were evaluated. The percentages of rooting reached an average of 67.5% for P. arboreum, 51.6% for P. cernuum and 50.4% for P. diospyrifolium. A positive effect in the treatments containing the plant regulator was observed for rooting development, percentage of cuttings with shoots and number of roots per propagule, but there were variations in the responses of each species. Leaf retention was an important factor for the adventitious rooting formation in all evaluated species.


2020 ◽  
Author(s):  
Javaid Iqbal ◽  
Bushra Khan ◽  
Sardar Khan ◽  
Nasreen Ghaffar ◽  
Ishaq Ahmad Mian ◽  
...  

Abstract Background Himalayan yew (Taxus wallichiana) is one of the endangered medicinal plants species having great importance due to the presence of anticancer drug Taxol. This metabolite is mainly used for the treatment of ovarian, breast, AIDS-related cancers, and other indications. The study being reported here was conducted for the propagation of Himalayan yew by using two different trials of Indole Butyric acid (IBA) and Indole acetic acid (IAA) hormones treatments (2000–7000 ppm) through stem cuttings (140 each). In the same way, 3840 cuttings were treated with IBA and IAA from November 2016 to November 2017 at Lalku valley, Swat, Khyber Pakhtunkhwa (KP), Pakistan. Results The influence of IBA treatment (7000 ppm) showed a survival of 85.22% (average number of roots = 10.4, average length of roots = 15.5 cm, average number of leaves = 92.4 and average number of sprouts = 3.3) while that of IAA treatment (7000 ppm) the survival of 81.11% (average number of roots = 9.1, average length of roots = 14.6 cm, average number of leaves = 84.0 and average number of sprout = 3.0) were more significant followed by 2000–6000 ppm (IBA and IAA). Lowest survival 40–45% (average number of roots = 4.2, average length of roots = 8.0 cm, average number of leaves = 32.2, average number of sprouts = 1.7) was noticed for controlled cuttings. Conclusion The present study enhanced the potential of conservation and propagation of T. wallichiana. Hence our study suggests and recommends the application of IBA (7000 ppm) as a better hormone for the conservation and propagation of Himalayan yew.


2015 ◽  
Vol 60 (3) ◽  
pp. 263-275 ◽  
Author(s):  
Fardin Nasri ◽  
Arsalan Fadakar ◽  
Mahmood Saba ◽  
Bayzid Yousefi

Rosa damascena is very important for essential oil production, medicinal properties and it is also widely cultivated as a garden rose. The Rose species is mainly propagated by stem cutting. In the present study, the effect of different levels of 0, 500 and 1,000 mg l-1 (quick dip method for 20 s) of indole butyric acid (IBA) on the rooting of 12 wild genotypes (including: Kurdistan 1 to Kurdistan 12) of R. damascena was investigated. The results show that the rooting ability of R. damascena differs significantly between the twelve genotypes. The highest rooting (79.56%) and callus production (69.08%), number of roots (8.33), root fresh and dry weights (361.80 and 244.74 mg, respectively) were recorded in Kurdistan 5 genotype with 1,000 mg l-1 IBA. The maximum root length (5.84 cm) was observed in Kurdistan 5 genotype with 500 mg l-1 IBA that showed a significant difference compared to the control treatment (0.96 cm). The highest number of leaves per bud (7.33 at 500 mg l-1 IBA) and number of buds (5.00 at 1,000 mg l-1 IBA) were recorded in Kurdistan 1 genotype. The current study demonstrated that the different genotypes of R. damascena were in a difficult-toroot state, which suggests that cutting treatment with 1,000 mg l-1 IBA overcame the problem of the difficult-to-root state, and it can also enhance the rooting percentage in the studied genotypes.


2011 ◽  
Vol 22 (3) ◽  
pp. 409-416 ◽  
Author(s):  
Tarit Kumar Baul ◽  
Mohammad Mosharraf Hossain ◽  
Mohammad Mezbahuddin ◽  
Mohammed Mohiuddin

2014 ◽  
Vol 32 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Lílian EB Baldotto ◽  
Marihus A Baldotto

Plant regulators, as well as bioactive fractions of the organic matter, can accelerate the development and increase the efficiency of adventitious rooting in ornamental plants. We evaluated rooting in the Brazilian red-cloak (Megaskepasma erythrochlamys) and sanchezia (Sanchezia nobilis) cuttings in response to application of indole-butyric acid (IBA) and humic acids (HA). Stem cuttings of both species treated with solutions of 0, 250, 500, 1000, 2000 mg/L of IBA and 0, 10, 20, 30, 40 mmol/L of C of HA were placed in 2.0 L plastic pots containing carbonized rice husk, kept in greenhouse. Survival of cuttings, number of leaves and shoot and root fresh and dry matter were evaluated 45 days after. Data were used to run an analysis of variance. We observed the average contrasts, calculated the regression equations and estimated the concentrations that provided the best efficiency in terms of root dry matter. For IBA, 185.4 and 66.8 mg/L were the concentrations that promoted the highest root dry matter accumulation in the Brazilian red-cloak and sanchezia, respectively, with increments of 140 and 22.5% in relation to the control. HA, at 33.6 mmol L-1 of C, increased shoot fresh and dry matter in the Brazilian red-cloak, but reduced root formation compared to the control. In sanchezia, HA at 19.5 mmol L-1 of C promoted increases of 35.9% in root dry matter in relation to the control. We concluded that IBA, in the abovementioned concentrations, increased adventitious rooting in cuttings of both the Brazilian red-cloak and sanchezia, while optimal doses of HA solutions are very likely to improve adventitious rooting in sanchezia, but not in the Brazilian red-cloak.


2016 ◽  
Vol 8 (4) ◽  
pp. 468-471 ◽  
Author(s):  
Ehoniyotan Olayemi IBUKUN

The effect of hormone on the rooting of stem-cuttings and marcotting of akee apple was studied using a combination between Indole -3- Butyric Acid (IBA) and 1- Naphthalene Acetic Acid (NAA). Stem-cuttings from mature akee trees from Challenge, Jalala and Ganmo in Ilorin, were treated with different dilutions of the liquid hormone in the combination of 1.0% Indole-3- butyric acid + 0.5% 1-Naphthaleneacetic acid before propagating them in a non-mist propagator. Marcotting was also carried-out on trees, using the hormonal combination of different dilutions. Observations and the results obtained revealed that the hormonal combination had significant effect on the rooting of stem-cuttings and marcotting. Both marcotting and stem cuttings did not produce at the end of the experiment roots in the absence of the hormonal treatment; a particular aspect was marcotting that initials produced roots. On the other hand, both marcotting and stem cuttings produced roots with the hormonal treatments; more roots were produced using the combination of 2,000 ppm of IBA and 1,000 ppm of NAA, compared with lower concentrations of the hormone mixtures. After callus formation, 2,000 ppm of IBA and 1,000 ppm of NAA combination gave the best results within stem-cuttings. Based on the results obtained, it was concluded that the combination of IBA and NAA in appropriate concentration promoted rooting in Akee apple and therefore are highly valuable for the vegetative propagation of this species through stem cutting and marcotting.


1995 ◽  
Vol 72 (2-3) ◽  
pp. 199-206 ◽  
Author(s):  
H. Aminah ◽  
J.McP. Dick ◽  
R.R.B. Leakey ◽  
J. Grace ◽  
R.I. Smith

2010 ◽  
Vol 28 (2) ◽  
pp. 69-73
Author(s):  
Jeff R. Jones ◽  
Anthony V. LeBude ◽  
Thomas G. Ranney

Abstract Deciduous azaleas (Rhododendron L.) offer a range of desirable ornamental characteristics and can be valuable nursery crops. Availability in the nursery trade, however, can be limited by the lack of effective propagation protocols. Therefore, the objectives of this research were to develop and optimize vegetative propagation protocols for Oconee azalea, Rhododendron flammeum (Michx.) Sarg., utilizing stem cuttings or in-field mound layering. An optimal method for producing rooted stem cuttings with large root systems (> 20 cm2) was to collect softwood stem cuttings from hedged stock plants followed by treatment with 10,000 ppm of the potassium salt (K-salt) of indolebutyric acid (K-IBA). Mound layering was also effective. Fifty percent of the stems on each mound resulted in rooted layers and approximately six layers were produced per mound regardless of mounding season (March or June), with or without wounding, or application of 5000 ppm K-IBA to stems prior to mounding in June. Both softwood cuttings and mound layering can be utilized to produce high quality plants.


2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Rosimeri de Oliveira Fragoso ◽  
Carlos André Stuepp ◽  
Helena Cristina Rickli ◽  
Katia Christina Zuffellato-Ribas ◽  
Henrique Soares Koehler

ABSTRACT: Prunus serrulata is a species widely used in the ornamentation and its economic importance is mainly due to the time of its flowering. The objective was to assess the feasibility of cutting technique for propagating P. serrulata , using stem cuttings from current-year shoots, and to estimate the maximum efficiency concentration of auxin indole butyric acid (IBA), in the promotion of rooting. Collection of plant material took place in late spring. Cuttings were made with about 8±1cm length and two leaves reduced to 50% of its original surface. Twenty one IBA concentrations have been assessed (0, 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000, 3250, 3500, 3750, 4000, 4250, 4500, 4750 e 5000mg L-1), applied in base of cuttings, which were placed in acclimatized greenhouse. After 60 days, there was a gradual increase in the rooting percentage compared to the increment of IBA to the approximate concentration of 2700mg L-1, with results higher than 80%. In addition, low efficiency concentrations of growth regulators have resulted in fewer roots per cutting, which could compromise the survivability of the seedlings under ambient conditions. Conversely, the decrease in the percentage of callus may be an indication that root formation in P. serrulata occurs directly, without requiring callus formation and its further de-differentiation and re-differentiation in roots.


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