scholarly journals Vegetative propagation of Acalypha hispidathrough cuttings with different types of media

Author(s):  
LM Rifnas ◽  
NP Vidanapathirana ◽  
TD Silva ◽  
N Dahanayake ◽  
S Subasinghe ◽  
...  
2013 ◽  
Vol 8 (3) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Christian Troncoso ◽  
Claudia Perez ◽  
Victor Hernandez ◽  
Manuel Sanchez-Olate ◽  
Darcy Rios ◽  
...  

The expression of defensive compounds derived from secondary metabolism in plants of Eucalyptus globulus Labill, and the persistence of these in vegetative propagation was evaluated by gas chromatography with flame ionization (GC-FID) and mass spectrometry (MS). The plants were induced by attack from the insect Ctenarytaina eucalypti (“blue gum psyllid”) and by mechanical damage. Defense responses were activated in plants for the different types of tested induction. We identified four defensive compounds present in the leaves of plants induced in entomological form (β-terpineol, aromadendrene, caryophyllene-oxide and eremophilene); all remained in the vegetative propagation. After mechanical induction, we identified three compounds (β-terpineol, aromadendrene and ledol), of which ledol and aromadendrene persisted in the vegetative propagation. Virtually all the compounds detected, in addition to persisting in the vegetative propagation, showed specificity for the induction type, whether entomological or mechanical, except for aromadendrene, which was expressed in both types of induction.


2016 ◽  
Vol 46 (8) ◽  
pp. 1364-1367
Author(s):  
Luma dos Passos Bispo ◽  
Lenaldo Muniz de Oliveira ◽  
Marilza Neves do Nascimento ◽  
Carlos Alberto da Silva Ledo

ABSTRACT: The objective of this study was to evaluate the effect of different types of cuttings and indolebutyric acid (IBA) concentration on the vegetative propagation of Lippia insignis , L. lasiocalycina , and L. thymoides . The experiment was conducted in a 2×5 factorial table, by using 2 types of cuttings (apical and medial) and 5 IBA concentrations (0, 250, 500, 750, and 1000mg·L-1) in a Completely Randomized Design (CRD), with 4 replications and 10 cuttings per plot. For the propagation of L. insignis , apical cuttings are the most suitable, whereas for L. thymoides and L. lasiocalycina species, both apical and medial cuttings may be used. The application of IBA is not necessary for propagation by cutting of the three species of Lippia.


2018 ◽  
Vol 53 (9) ◽  
pp. 985-1002 ◽  
Author(s):  
Carlos André Stuepp ◽  
Ivar Wendling ◽  
Aloisio Xavier ◽  
Katia Christina Zuffellato-Ribas

Abstract: Understanding the mechanisms involved in tree species maturation, related mainly to ontogenetic age effects, has contributed significantly to the vegetative propagation process of Brazilian native tree species, with consequent application of clonal forestry. A number of methodologies has been developed to rescue and vegetatively propagate these species for silvicultural and environmental restoration purposes. However, the types and purposes of propagation, as well as the choice of suitable processes and propagules considering the intended objectives, still need to be better aligned. In addition, there is an evident knowledge gap and great potential regarding the use of native tree species in Brazilian clonal forestry, indicating the need of a greater interaction between studies on the vegetative propagation and vigor of these materials in the field. Therefore, this review aims to help understand the different types of techniques used and their application on the vegetative propagation and clonal forestry of Brazilian native tree species, besides proposing a schematic sequence of the stages involved in these processes for productive and environmental purposes.


Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1197
Author(s):  
Isabel Vidoy-Mercado ◽  
Isabel Narváez ◽  
Elena Palomo-Ríos ◽  
Richard E. Litz ◽  
Araceli Barceló-Muñoz ◽  
...  

Trees have a distinctive and generally long juvenile period during which vegetative growth rate is rapid and floral organs do not differentiate. Among trees, the juvenile period can range from 1 year to 15–20 years, although with some forest tree species, it can be longer. Vegetative propagation of trees is usually much easier during the juvenile phase than with mature phase materials. Therefore, reversal of maturity is often necessary in order to obtain materials in which rooting ability has been restored. Micrografting has been developed for trees to address reinvigoration/rejuvenation of elite selections to facilitate vegetative propagation. Generally, shoots obtained after serial grafting have increased rooting competence and develop juvenile traits; in some cases, graft-derived shoots show enhanced in vitro proliferation. Recent advances in graft signaling have shown that several factors, e.g., plant hormones, proteins, and different types of RNA, could be responsible for changes in the scion. The focus of this review includes (1) a discussion of the differences between the juvenile and mature growth phases in trees, (2) successful restoration of juvenile traits through micrografting, and (3) the nature of the different signals passing through the graft union.


Author(s):  
Lynette Morgan

Abstract Crop establishment is a fundamental process in greenhouse and hydroponic production. Seed and seedling delivery systems vary considerably between different types of crops and growing situations and with level of mechanization available. This chapter focuses on propagation and transplant production. Crop establishment methods such as propagation from seed, seedling transplant production through containerized and non-containerized delivery methods, seeding of cell flats, trays and other transplant media, transplant production systems, use of plant factories for seedling transplant production, organic transplant production, grafting, vegetative propagation, and tissue culture are discussed in this chapter.


Author(s):  
Rayssa Gomes Vasconcelos ◽  
Raquel da Silva Medeiros ◽  
Daniel da Silva ◽  
Paulo de Tarso Barbosa Sampaio

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.


2020 ◽  
Vol 44 ◽  
Author(s):  
Juliana Muller Freire ◽  
Letícia Nakamura Veríssimo ◽  
Beatriz Rodrigues Pereira ◽  
Janaína Ribeiro Costa Rouws ◽  
José Carlos Arthur Junior

ABSTRACT The objective of this work was to evaluate the vegetative propagation of Hymenaea courbaril (jatobá) and Apuleia leiocarpa (garapa) using the mini-cutting technique with the use of indolebutyric acid (IBA) growth regulator in different types of mini-cuttings. Two experiments were set up: the first involving the two species and three mini-cutting techniques (basal, intermediate and apical) in the presence and absence of IBA (4000 mg kg-1). In the second experiment, only the garapa species was evaluated by testing the same three mini-cutting techniques at four IBA concentrations: 0, 1000, 2000 and 4000 mg kg-1. The mini-cuttings were obtained from 6-month-old seedlings produced from seeds in a nursery. A randomized block design was used in a 3 x 2 x 3 factorial scheme (three mini-cutting techniques, two IBA concentration levels and three evaluation dates) in the first experiment, and a 3 x 4 x 3 factorial scheme (three mini-cutting techniques, four IBA concentrations and three evaluation dates) in the second experiment. At 90 days, jatobá had an average survival of 54%, with less than 5% of total rooting, without significant influence of the mini-cutting technique or IBA use. Garapa presented higher survival for the basal mini-cuttings in both experiments, which were the only ones that took root. IBA did not influence survival or rooting percentage of garapa mini-cuttings, but negatively influenced the root number, length and dry mass. We concluded that the basal mini-cutting is a viable technique for vegetative propagation of garapa, presenting 40% of rooting, but the propagation by mini-cutting for jatobá was not successful under the conditions of this study.


2021 ◽  
Vol 34 (2) ◽  
pp. 310-317
Author(s):  
DHEIMY DA SILVA NOVELLI ◽  
GABRIELA DA SILVA TAMWING ◽  
SEBASTIÃO ELVIRO DE ARAÚJO NETO ◽  
LUIS GUSTAVO DE SOUZA E SOUZA ◽  
NILCILÉIA MENDES DA SILVA

ABSTRACT The objectives of the tests were to evaluate concentrations of indolebutyric acid (IBA) combined with different types of cuttings and grafting methods on the vegetative propagation of cajazeira-dejabuti (S. testudinis). The experiment with stem cuttings was conducted in a greenhouse with an intermittent misting system. The experimental design was completely randomized in a 5 x 6 factorial arrangement consisting of five cutting types: apical, medial, basal, stratified, and tanchan, and six IBA concentrations: 0, 1,000, 2,000, 3,000, 4,000, and 5,000 mg kg-1, with four replications of ten cuttings. The experiment with the root cuttings followed a randomized block design composed of six IBA concentrations (0, 1,000, 2,000, 3,000, 4,000, and 5,000 mg kg-1) with four replications, evaluating after 120 days the percentages of live, sprouted, rooted, and calloused cuttings, and the number and dry mass of roots and sprouts. Five grafting methods (chip budding, shield budding, cleft grafting, wedge grafting, and splice grafting) were tested by evaluating the graft success and sprouting percentages at 30 and 60 days after grafting, respectively. Statistical analyses were performed using the Kruskal-Wallis non-parametric test. The IBA concentrations of 0, 2,000, 3,000, and 5,000 mg kg-1 increased the number of sprouts in tanchan cuttings. The tanchan cuttings showed the highest survival and percentage of sprouts regardless of the IBA concentration. The IBA concentration of 2,200 mg kg-1 promotes higher rooting rates in root cuttings. Splice grafting provides higher graft success and sprouting rates.


Author(s):  
Lynette Morgan

Abstract Crop establishment is a fundamental process in greenhouse and hydroponic production. Seed and seedling delivery systems vary considerably between different types of crops and growing situations and with level of mechanization available. This chapter focuses on propagation and transplant production. Crop establishment methods such as propagation from seed, seedling transplant production through containerized and non-containerized delivery methods, seeding of cell flats, trays and other transplant media, transplant production systems, use of plant factories for seedling transplant production, organic transplant production, grafting, vegetative propagation, and tissue culture are discussed in this chapter.


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