Propagação de porta-enxerto de Prunus spp. por estaquia: efeito do genótipo, do estádio de desenvolvimento do ramo e tipo de estaca

Rosa, Gabriela Gerhardt da; Zanandrea, Ilisandra; Mayer, Newton Alex; Bianchi, Valmor João

doi:10.1590/0034-737x201764010013

Cited by 12 publications

(14 citation statements)

References 14 publications

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“…According to Wendling, Trueman, and Xavier (2014), the maturation in woody species reduce the regenerative capacity, reflecting at capacity and vigor of rooting, being necessary use juvenile materials, due in some woody species the formation of roots is associated with a maturation gradient, thus, the basal cuttings may be more lignified and apical cuttings less lignified. The lignification of the cuttings reflects in less quantity of meristematic cells, with less active metabolism, which associated with the presence of phenolic compounds, justifies the absence of rooting (Stuepp, Zuffellato-Ribas, Macanhão, Fragoso, & Rickli, 2014;Rosa, Zanandrea, Mayer, & Bianchi, 2017).…”

Section: Resultsmentioning

confidence: 99%

Vegetative Propagation of Gabirobeira Associate to Indolbutyric Acid in Different Seasons

Souza¹,

Dias²,

Barbosa³

et al. 2019

JAS

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The propagation of gabirobeira is carried out by seeds. However, the recalcitrance and not tolerance of the seeds to the storage compromise the formation of seedlings. Thus, the propagation by cuttings can be an option, being able to provide significant results in different seasons. The objective of this work was to evaluate the vegetative propagation by stem cuttings of two species of gabirobeira (Campomanesia adamantium and Campomanesia pubescens) associate to indolbutyric acid (IBA) at differents seasons of the year. Cuttings of the two species were obtained in the 4 seasons and concentrations of 0, 2000, 4000, 6000 and 8000 mg L-1 of IBA were used, by immersion in the solution for 15 seconds and sequentially staked on trays containing a sand substrate. Sixty days after experiments were set it was evaluated the percentage of cuttings with shoots, live cuttings, dead cuttings, cuttings with calluses and rooted cuttings. A completely randomized design with 5 treatments, 4 replicates and 8 cuttings per plot was adopted. During the whole experiment, the greenhouse, substrate and cutting leaves temperature was monitored. The use of IBA did not promote adventitious rhizogenesis, but provided a high percentage of survival for the species Campomanesia adamantium and Campomanesia pubescens by stem cuttings during the spring season.

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Section: Resultsmentioning

confidence: 99%

Vegetative Propagation of Gabirobeira Associate to Indolbutyric Acid in Different Seasons

Souza¹,

Dias²,

Barbosa³

et al. 2019

JAS

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“…Também, as estacas oriundas da posição apical do ramo morreram e, consequentemente, não enraizaram, independente de conter ou não folhas. Ressalta-se, que Rosa et al (2017), analisando a influência do estádio de desenvolvimento do ramo e do tipo de estaca (apical ou basal) sobre o enraizamento de Prunus spp. (cultivar Mirabolano 29-C), verificaram que a porção apical do ramo teve uma taxa de enraizamento 32% maior que a porção basal, embora não tenha ocorrido interação entre fatores.…”

Section: Resultsunclassified

“…De acordo com Rosa et al (2017), as respostas das estacas ao enraizamento variam em função da posição do ramo em que foram retiradas. Como a composição química do tecido não é a mesma, estacas provenientes de diferentes posições do caule tendem a diferir quanto ao potencial de enraizamento.…”

Section: Resultsunclassified

Enraizamento De Miniestacas De Ruellia Angustiflora (Nees) Lindau Ex Rambo (Acanthaceae)

Silva¹,

Essi²

2019

Enci Bio

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RESUMONo paisagismo, há um predomínio no uso de espécies exóticas, porém o uso de nativas contribui tanto para conservação da flora local, quanto para a valorização das identidades regionais. A flora gaúcha apresenta um grande número de espécies nativas com alto potencial como ornamentais, porém poucas espécies estão em efetivo uso ou já foram previamente investigadas quanto às formas de cultivo e comercialização. Uma das famílias botânicas que se destaca pelo número de espécies com potencial ornamental é Acanthaceae. Esta família apresenta 30 espécies no estado do RS, dentre elas Ruellia angustiflora (Nees) Lindau ex Rambo, conhecida como flor-de-fogo. É uma espécie arbustiva de borda de mata, de flores vermelhas, com potencial ornamental e, também, com uso na medicina popular como cicatrizante. Produz uma pequena quantidade de diminutas sementes, o que dificulta a propagação comercial por esse meio. Por essa razão, o presente trabalho teve por objetivo avaliar a propagação por estacas em R. angustiflora. As estacas foram retiradas de diferentes posições do caule da planta matriz (terço basal, médio e apical). Foram registradas a percentagem de miniestacas que desenvolveram folhas, que desenvolveram raiz, número médio de raízes formadas, comprimento médio das raízes e massa seca das raízes. Conclui-se que não há diferença na eficiência de miniestacas do terço basal, mediano e apical quanto às variáveis avaliadas referentes ao enraizamento, mas há maior percentual de formação de folhas nas estacas apicais e medianas. PALAVRAS-CHAVE: Flor-de-fogo; ornamental; paisagismo ROOTING IN MINICUTTINGS OF RUELLIA ANGUSTIFLORA (NEES) LINDAU EX RAMBO (ACANTHACEAE)ABSTRACT In landscaping, there is a predominance in the use of exotic species, but the use of native species contributes to the conservation of local flora, as well as to the appreciation of regional identities. The flora of Rio Grande do Sul (RS, Brazil) has a ENCICLOPÉDIA BIOSFERA,

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“…The rate and extent of the rooting competence has an important genetic component (Geiss et al, 2009), since the phytohormonal requirement for rhizogenic induction and reserves mobilization are genotype dependent that affect both the rooting and shooting process necessary for plantlet growth and development (Rosa, Zanandrea, Mayer, & Bianchi, 2017). The adventitious rooting process is also affected by the ontogenetic age of the stock plant (Geiss et al, 2009;Wendling, Trueman, & Xavier, 2014a).…”

Section: Introductionmentioning

confidence: 99%

Vegetative propagation of mate from shoot cuttings induced by coppicing of selected plants

Gazzana

Pimentel

Lohmann

et al. 2020

Semina: Ciênc. Agrár.

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Mate (Ilex paraguariensis A. St.-Hil) is an arboreal species of great economic and socio-environmental importance, which presents difficulties in the adventitious rooting process. The rhizogenic competence of vegetative propagules of mate can be attained by coppicing, but the factors that influence the success of this technique have not yet been elucidated. Therefore, the aim of this study was to evaluate the effects of the stock plant, time of shoot collection, treatment with indolebutyric acid (IBA) and diameter of vegetative propagules in the adventitious rooting of cuttings from shoots induced by coppicing of selected adult plants of mate. Shoots produced from coppiced 13SM01 and 13SM05 stock plants were collected at different times of the year to prepare single-bud cuttings. The cuttings were measured as their diameter in the central portion and treated with 0 and 3000 mg L-1 of IBA. After 60 days, cuttings were evaluated to determine survival and rooting percentages, number of roots, and length of the three largest roots. A completely randomized design was used in a 4 × 2 × 2 × 13 (collection times x stock plants x IBA treatment x diameter classes) factorial scheme with 15 replications. Competence for adventitious rooting was highest for stock plant 13SM05. Cuttings collected in November and February had the highest rooting percentages, without the need of IBA treatment. Cuttings from 13SM01 and 13SM05 with diameters smaller than 0.636 cm (classes 1 to 6) and smaller than 0.712 cm (classes 1 to 7), respectively, had the highest rooting percentages and differed significantly from cuttings with larger diameters. Thus, the results of the present study indicate that stock plants, time of shoot collection, and diameter of vegetative propagules influence adventitious rooting competence of mate cuttings from coppicing adult plants. Rooting of mate cuttings with lower rhizogenic competence is influenced by the application of 3000 mg L-1 of IBA.

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Propagação de porta-enxerto de Prunus spp. por estaquia: efeito do genótipo, do estádio de desenvolvimento do ramo e tipo de estaca

Cited by 12 publications

References 14 publications

Vegetative Propagation of Gabirobeira Associate to Indolbutyric Acid in Different Seasons

Vegetative Propagation of Gabirobeira Associate to Indolbutyric Acid in Different Seasons

Enraizamento De Miniestacas De Ruellia Angustiflora (Nees) Lindau Ex Rambo (Acanthaceae)

Vegetative propagation of mate from shoot cuttings induced by coppicing of selected plants

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