Vegetative propagation of African Mahogany: effects of auxin, node position, leaf area and cutting length

New Forests ◽  
1996 ◽  
Vol 11 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Z. Tchoundjeu ◽  
R. R. B. Leakey
Keyword(s):  
Leaf Area ◽  
Vegetative Propagation ◽  
African Mahogany ◽  
Cutting Length ◽  
Node Position

scholarly journals Clonal Propagation ofKhaya senegalensis: The Effects of Stem Length, Leaf Area, Auxins, Smoke Solution, and Stockplant Age

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Catherine Ky-Dembele ◽  
Mulualem Tigabu ◽  
Jules Bayala ◽  
Patrice Savadogo ◽  
Issaka Joseph Boussim ◽  
...  
Keyword(s):  
Leaf Area ◽  
Clonal Propagation ◽  
Stem Length ◽  
Timber Species ◽  
Plantation Establishment ◽  
Mature Trees ◽  
Rooting Ability ◽  
Khaya Senegalensis ◽  
Cutting Length ◽  
Rooting Of Cuttings

Khaya senegalensisis a multipurpose African timber species. The development of clonal propagation could improve plantation establishment, which is currently impeded by mahogany shoot borer. To examine its potential for clonal propagation, the effects of cutting length, leaf area, stockplant maturation, auxin, and smoke solution treatments were investigated. Leafy cuttings rooted well (up to 80%) compared to leafless cuttings (0%). Cuttings taken from seedlings rooted well (at least 95%), but cuttings obtained from older trees rooted poorly (5% maximum). The rooting ability of cuttings collected from older trees was improved (16% maximum) by pollarding. Auxin application enhanced root length and the number of roots while smoke solution did not improve cuttings' rooting ability. These results indicate that juvenileK. senegalensisis amenable to clonal propagation, but further work is required to improve the rooting of cuttings from mature trees.

scholarly journals Vegetative propagation of Plukenetia polyadenia by cuttings: effects of leaf area and indole-3-butyric acid concentration

2016 ◽  
Vol 77 (3) ◽  
pp. 580-584 ◽  
Author(s):  
R. Solis ◽  
M. Pezo ◽  
G. Diaz ◽  
L. Arévalo ◽  
D. Cachique
Keyword(s):  
Leaf Area ◽  
Butyric Acid ◽  
Vegetative Propagation ◽  
Root Formation ◽  
Unsaturated Fatty Acids ◽  
Block Design ◽  
Native People ◽  
Breeding Programs ◽  
Randomized Complete Block Design ◽  
Rooting Of Cuttings

Abstract The seeds of Plukenetia polyadenia have high levels of unsaturated fatty acids and are used as medicine and food for native people in the Peruvian and Brazilian Amazon. The objective of this study was to develop a method for vegetative propagation of Plukenetia polyadenia by rooting of cuttings. The experiment was laid out in a randomized complete block design with 12 treatments and 3 replications of 8 cuttings, in a 3 × 4 factorial arrangement. The factors were: 3 levels of leaf area (25, 50 and 75%) and 3 indole-3-butyric acid - IBA concentrations (9.84, 19.68 and 29.52mM) and a control without IBA. Data were submitted to analysis of variance and means were compared by Tukey test at 5% probability. Our results show that the use of cuttings with 50% of leaf area and treatment with 29.52mM of IBA induced high percentages of rooting (93%) and the best root formation. Vegetative propagation of Plukenetia polyadenia by cuttings will be used as a tool to conserve and propagate germplasm in breeding programs.

scholarly journals Vegetative propagation of Garcinia lucida Vesque (Clusiaceae) using leafy stem cuttings and grafting

Afrika Focus ◽  
2017 ◽  
Vol 27 (3) ◽  
Author(s):  
Bertin Takoutsing ◽  
Alain Tsobeng ◽  
Zacharie Tchoundjeu ◽  
Ann Degrande ◽  
Ebenazar Asaah
Keyword(s):  
Acetic Acid ◽  
Leaf Area ◽  
Vegetative Propagation ◽  
Naphthalene Acetic Acid ◽  
High Porosity ◽  
Stem Cuttings ◽  
Forest Zone ◽  
Indole Butyric Acid ◽  
Humid Forest ◽  
Humid Forest Zone

Garcinia lucida Vesque (Clusiaceae) is a tree species that is highly valued for its medicinal properties by rural households in the humid forest zone of Cameroon. However, the unsustainable exploitation of the species threatens its long-term regeneration. This study focuses on its vegetative propagation via stem cuttings in non-mist propagators and through grafting. The study tests the effects of three rooting media (sand, sawdust, sand + sawdust (1/1); three leaf sizes (0,25 and 50 cm2); and three types of hormone [indole butyric acid (IBA), indole-3-acetic acid (IAA) and naphthalene acetic acid (NAA)], applied as a single dose. Furthermore, three grafting techniques (cleft, side tongue and whip-and-tongue grafting) were tested. All experiments were designed as completely randomized blocks with three replicates. Results showed that cuttings require a medium that has low water holding capacity and high porosity, and a leaf area of 50 cm2 and NAA treatment; grafting success was affected by the technique used, with top cleft grafting yielding a 100% success rate. From this preliminary study, it is concluded that G. lucida is amenable to vegetative propagation by cuttings and grafting. Key words: tree domestication, leaf area, non-mist propagator, rooting hormone, rooting medium, under-utilised species 

Improving regeneration of mahogany: techniques for vegetative propagation of four African mahogany species using leafy stem cuttings

New Forests ◽  
2014 ◽  
Vol 45 (5) ◽  
pp. 687-697 ◽  
Author(s):  
Sandra A. Owusu ◽  
Emmanuel Opuni-Frimpong ◽  
Charles Antwi-Boasiako
Keyword(s):  
Vegetative Propagation ◽  
Stem Cuttings ◽  
African Mahogany

scholarly journals Effect of apical dominance on bud take in Citrus vegetative propagation

2017 ◽  
Vol 7 (1) ◽  
pp. 64-70
Author(s):  
M Mataa ◽  
P Cheelo ◽  
D Lungu ◽  
T Kinkese
Keyword(s):  
Leaf Area ◽  
Vegetative Propagation ◽  
Shoot Growth ◽  
Research Station ◽  
Central Research ◽  
Area Index ◽  
Apical Shoot ◽  
Leaf Emergence ◽  
Number Of Leaves ◽  
Propagation Methods

The objective of the study was to identify the grafting method, which will have a higher success rate of scion development. The study was conducted at Mount Makulu Central Research station in Chilanga, Zambia (15o33’S / 28o11’E) from April 2010 to November 2011. The study had 4 vegetative propagation methods that varied in the treatment of the rootstock and scion. The four methods were Standard T- budding (STB); Modified TBudding with decapitation (TBD); T- budding with scion bending (TBB); Crown grafting (CG). Bud take, shoot growth, leaf emergence and Leaf area index were measured up to 11 weeks after treatment (WAT). With CG there was 100 % bud take. STB had a bud take of 58.3 %. TBD had a bud take of 50 %. The lowest bud take percentage was recorded in TBB, which had a bud take of 41.7 %. At 5 weeks the STB and TBB treatment had shoot length of 0.7 and 1.0 cm respectively which were the shortest; this was followed by the CG treatment at 15.3 cm and the modified TBD with apical shoot decapitation (21.7 cm). STB shoots did not start growing until about 5 weeks, which was 2 weeks after the rootstock was cut off. At 5 weeks, the TBB and STB were yet to form leaves. The CG had close to 20 leaves and the TBD had almost 15.2 leaves. At the end of 11 weeks, the TBB had the highest number of leaves. Across the grafting methods; the Leaf area exhibited a pattern similar to leaf number; it kept on doubling every 2 weeks to until the 9th week after which the increase was negligible. At 11 weeks, the highest leaf area was in the TBD followed by the STB and lowest in the CG treatment.Int. J. Agril. Res. Innov. & Tech. 7 (1): 64-70, June, 2017

scholarly journals Vegetative Propagation of Himatanthus sucuuba (Spruce ex Müll. Arg.) Woodson by Stem Cuttings

2020 ◽  
pp. 8-15
Author(s):  
Rayssa Gomes Vasconcelos ◽  
Raquel da Silva Medeiros ◽  
Daniel da Silva ◽  
Paulo de Tarso Barbosa Sampaio
Keyword(s):  
Experimental Design ◽  
Vegetative Propagation ◽  
Stem Cuttings ◽  
Determining Factors ◽  
Dry Biomass ◽  
Different Types ◽  
The Matrix ◽  
Cutting Length ◽  
Rooting Of Cuttings ◽  
Number Of Leaves

The vegetative propagation by cuttings can be an advantageous alternative to the production of Himatanthus sucuuba seedlings because it allows the obtention of a large number of plants genetically identical to the matrix plant in a shorter time and space. However, such a technique is simultaneously influenced by different factors that can compromise its success. In this sense, the present study aimed to evaluate the effect of different types of cuttings and indole-3-butyric acid (IBA) concentration, on the survival and rooting of cuttings of H. sucuuba. The experimental design used was in randomized complete blocks, with a factorial arrangement: 2 types of cuttings (with and without leaves) and 3 concentrations of IBA (0, 1000 and 3000 mg L–1). After 100 days, were evaluated the following variables: survival (%), rooting (%), number of roots per cutting, length of the largest root (cm), number of leaves and dry biomass. The data were subjected to analysis of variance (ANOVA) and means compared by Tukey’s test at p < 0.05. The survival and rooting percentages were higher than 70% in all treatments. There was no significance for the interaction of the factors analyzed, neither for the effect of AIB, analyzed in isolation. The type of stake exerted the greatest influence, with emphasis on the cuttings with leaves, which stood out in most of the factors analyzed. The propagation of H. sucuuba to cuttings was considered viable, and the maintenance of the leaves, associated with juvenility of the propagules, was determining factors in the conditions in which this study was developed.

scholarly journals EFFECT OF STEM DIAMETER, MEDIA TYPE AND LIGHT INTENSITY ON THE GROWTH OF MEDICINAL PLANT OF SCREW TREE/KAYU ULES (Helicteres isora Linn.)

2021 ◽  
Vol 8 (2) ◽  
pp. 213-227
Author(s):  
Dani Pamungkas ◽  
Aziz Umroni ◽  
Nurhuda Adi Prasetyo
Keyword(s):  
Survival Rate ◽  
Light Intensity ◽  
Leaf Area ◽  
Vegetative Propagation ◽  
Stem Cutting ◽  
Diameter Class ◽  
Media Type ◽  
Helicteres Isora ◽  
Media Types ◽  
Diameter Classes

Screw tree (Helicteres isora) is a shrub species (Fam: Malvaceae) with 1.5–4 m in height and  with multi-main trunks up to 9–12. In Indonesia, kayu ules has been used as a traditional medicine, known as jamu, and has been commercialized. In order to cultivate this species, vegetative propagation is likely promising compared to the generative propagation since seed viability is low and cannot be stored for longterm. Nevertheless, there is a lack of information on which diameter classes, media types and light intensities would give the best result for vegetative propagation. This research aimed to obtain information on which diameter classes and media that were suitable for kayu ules stem cutting propagation and to what degree the light intensity would be best for the growth of the seedlings of kayu ules. Three diameter classes and four media types were employed in a  complete random design under the greenhouse environment.   Three months old good quality vegetatively-propagated seedlings were transplanted under two light intensities (under transparent canopy and shading net). The result showed that  considering the factor of diameter classes and media in kayu ules stem cutting propagation, it had improved the survival of the stem cutting. Diameter class I was best grown in media type 3 with 46.67 ± 12.2 % of survival rate, diameter class II was best grown in media type 2 with 38.67 ± 11.6 % of survival rate, whereas diameter class III was best grown in media type 4 with 52 ± 6.9 % of survival rate. The transplanted seedlings also grew significantly better under transparent canopy with higher light intensity. The distinctive features of screw tree under shading net were wider leaf area, higher specific leaf area and relative water content but it was lower in above ground dry biomass compared to the kayu ules under transparent canopy.

scholarly journals Effect of Node Position and Number of Stem Cutting on The Growth and Yield of ‘katuk’ (Sauropus androgynus (L.) Merr.)

el–Hayah ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 126-135
Author(s):  
Solikin Solikin
Keyword(s):  
Leaf Area ◽  
Dry Weight ◽  
Shoot Tip ◽  
Stem Cutting ◽  
Growth And Yield ◽  
Stem Cuttings ◽  
Node Number ◽  
Randomized Design ◽  
Total Plant ◽  
Node Position

Katuk (Sauropus  androgynus (L.) Merr.) has potential as a vagetable and medicinal plant.  This study aimed  to determine effect of node  position and number of stem cuttings  on the  growth  of  katuk. The experiment   used  Completely Randomized Design with two treatments arranged in split  plots. The node  position of stem cuttings as the main plot consists of top stem cutting (T, top – 8 nodes under shoot tip),  middle stem cutting (M, 8 – 11 nodes under shoot tip) and bottom stem cutting (B, 16-20 nodes under shoot tip). The node number of stem cuttings as a subplot consists of 2 nodes  (J1), 3 nodes (J2), 4 nodes (J3), and 5 nodes (J4). Each treatment  combination was replicated  three times.The results revealed that the top stem cutting  resulted in the  highest  root, total plant dry weight and leaf area, as well stem cutting with 4 nodes produced  the highest total plant dry weight and leaf area.

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