Seasonal fluctuation of root carbohydrates in hybrid aspen clones and its relationship to the sprouting efficiency of root cuttings

Stenvall, Niina; Piisilä, Maria; Pulkkinen, Pertti

doi:10.1139/x09-066

Cited by 17 publications

(16 citation statements)

References 20 publications

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“…Thick stems produce a larger number of roots which would promote water and nutrients uptake, necessary for plant development. Similar results were obtained in hybrid aspen clones regeneration (Stenvall et al 2009) and in clonal propagation of Detarium microcarpum (Guill. & Perr.)…”

Section: Discussionsupporting

confidence: 81%

“…This emphasises the importance of the physiological state of the stockplant (Leakey 2014a) and while this is well known, it is still often overlooked by people starting to propagate tree species by cuttings. The failure of cuttings gathered from lateral branches of mature trees to root, especially when leafless, is a common phenomenon attributable to several factors like the age-related physiology and morphology of donor plants and their phenology (Stenvall et al 2004(Stenvall et al , 2009Snedden et al 2010;Teklehaimanot et al 2012); including factors such as plant carbohydrate and nutrient contents and the content of growth regulators (Maile and Nieuwenhuis 2010;Ky-Dembele et al 2010;Dick and Leakey 2006).…”

Section: Discussionmentioning

confidence: 99%

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Propagation of <i>Garcinia kola</i> (Heckel) by stem and root cuttings

Kouakou¹,

Dao²,

Kouassi³

et al. 2016

Silva Fenn.

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(2016). Propagation of Garcinia kola (Heckel) by stem and root cuttings. Silva Fennica vol. 50 no. 4 article id 1588. 17 p. http://dx.doi.org/10.14214/sf.1588. Highlights• Roots and branches cuttings from mature forest trees are difficult to sprout.• The highest mean numbers of roots and buds produced were obtained with softwood cuttings.• The aqueous IBA treatment was more effective than the powder in promoting rooting and root development.• Non-mist poly-propagator gave the best propagation results.• Seedling stockplants cut above node 1 promoted most vigorous shoots production. AbstractThe availability of appropriate propagation techniques is a major constraint to the domestication of the forest trees widely used by rural communities; such as Garcinia kola (Heckel). This study tested the ability of root and stem cuttings to regenerate vegetatively when treated with indole-3-butyric acid (IBA), and set in non-mist poly-propagator within a shaded nursery. It found that G. kola is amenable to propagation by softwood stem cuttings. Attention was given to the effect of cutting age (softwood, semi hardwood) and IBA application with regard to the sprouting and rooting efficiency. Bud and leaf emergence time were also investigated, as was the coppicing ability of the stump. Results revealed that roots and branches from mature forest trees did not sprout under any culture conditions. The highest percentages of rooting (70-85%) were obtained with softwood cuttings set in non-mist poly-propagator, regardless of hormonal treatment. The mean numbers of buds (2.9 ± 0.4) and roots (2.6 ± 0.1) produced by softwood cuttings was significantly greater than those obtained in the Control. The best average emergence time of buds (25.1 days ± 9.3) and leaves (36.8days ± 8.4) was obtained with cuttings treated with IBA and set in non-mist poly-propagator against, 54.4 ± 12.5 and 72.6 ± 3.4 days respectively for the Control. In general, non-mist poly-propagator gave the best propagation results. When coppiced, the shoots emerging from stumps with one node were the most vigorous.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Propagation of <i>Garcinia kola</i> (Heckel) by stem and root cuttings

Kouakou¹,

Dao²,

Kouassi³

et al. 2016

Silva Fenn.

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“…Heller (1985) cit. Sanoussi et al (2012) argues that the carbohydrate content is high in the roots during the rainy season, but these reserves are transported to the collar or the surface roots at the beginning of periods of stress such as the dry season (Stenvall et al, 2009). The follow up of RSC plants transferred to the field since 2012 shown that no plant has flowed yet.…”

Section: Discussionmentioning

confidence: 99%

VEGETATIVE PROPAGATION Of VITEX DONIANA SWEET fROM ROOT SEGMENT CuTTINGS

Mapongmetsem¹,

Guidawa²,

Noubissie-Tchiagam³

et al. 2015

Bois for. trop.

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B o i s e t f o r ê t s d e s t r o p i q u e s , 2 0 1 6 , n° 3 2 7 ( PROPAGATION VÉGÉTATIVE DE VITEX DONIANA SWEET À PARTIR DE SECTIONS DE RACINEVitex doniana Sweet est une espèce à usages multiples d'une grande importance socio-économique et commune en Afrique tropicale. Malgré sa forte utilisation en milieu rural, elle est encore présente à l'état sauvage. Il existe peu de données sur sa domestication. La propagation de cet arbre par bouturage de segments de racine constitue une alternative à sa difficile régénéra-tion sexuée. L'objectif de notre travail était d'évaluer deux des facteurs clés (substrat d'enracinement, diamètre des boutures) qui influencent l'aptitude des boutures de segments de racine (BSR) à néoformer des pousses feuillées et des racines. Le système racinaire de 23 arbres a été partiellement excavé sur une profondeur de 20 cm. Des BSR de 15 cm de long ont été disposées horizontalement dans des polypropagateurs sur cinq substrats différents, arrosés matin et soir. Le dispositif était un split-plot à trois ré-pétitions. Le traitement principal recouvrait cinq substrats : terre noire (Tn), sable fin (S), sciure de bois (Sc), 50 % Tn/50 % Sc (TnSc) et 50 % Tn/50 % S (Tn-S). Le traitement secondaire distinguait deux classes de diamètre (0,5-1cm ; 1,1-2,5 cm). Après la mise en culture des BSR, le temps de latence d'émer-gence était de 8 semaines pour les pousses aériennes et 12 pour les racines. Après 28 semaines, le pourcentage de pousses feuillées formées variait de 28 % (Tn) à 55 % (S). Les pousses aériennes se sont développées majoritairement (82 %) sur le pôle distal. Le diamètre des BSR a déterminé le déve-loppement des pousses feuillées (P < 0,01). Le taux de bourgeonnement des BSR oscillait entre 21,0 ± 1,8 % pour les BSR de 0,5-1 cm et 86,0 ± 7,8 % pour la classe 1,1-2,5 cm. Le diamètre a également impacté l'enracinement des BSR (P < 0,001). Le taux d'enracinement des BSR variait de 12,0 ± 2,3 % pour les petits diamètres à 59,3 ± 4,7 % pour les plus gros. La multiplication végétative par BSR peut améliorer la filière économique de V. doniana dans les hautes savanes guinéennes du Cameroun. Mots-clés :Vitex doniana, multiplication végétative, domestication, aptitude à l'enracinement, bouturage de segments de racine, Cameroun. ABSTrACT VEGETATIVE PROPAGATION Of VITEX DONIANA SWEET fROM ROOT SEGMENT CuTTINGSVitex doniana Sweet is a common multipurpose species in tropical Africa, which has considerable socio-economic importance. Unfortunately, it is extracted from the wild and there has been little or no focused effort to domesticate and cultivate the species. Mastering its propagation through root segment cuttings (RSC) is a real alternative to the difficult process of regeneration from seeds. The aim of our study was to assess two of the key factors (rooting medium and root diameter) that influence its rooting ability. The root system of 23 trees was partially excavated to a depth of 20 cm. Root segment cuttings 15 cm in length were carefully cut and arranged horizontally in a polypropagato...

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“…Esse aumento do enraizamento, com a presença de folhas nas estacas, pode ter sido ocasionado também pela síntese de carboidratos na fotossíntese e de outras substâncias que são importantes no processo de formação de raízes, o que estimula a atividade de troca e a diferenciação celular necessárias para o sucesso do enraizamento (Stenvall et al, 2009). Estacas de cedro-australiano podem emitir raízes sem o uso de AIB, desde que mantidos os folíolos, mas o enraizamento pode aumentar com uso de AIB.…”

Section: Método De Resgateunclassified

Resgate vegetativo e propagação de cedro-australiano por estaquia

Pereira

Wendling

Nogueira

et al. 2015

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar métodos de resgate vegetativo para a produção de estacas (corte raso, anelamento total e semianelamento) de árvores adultas de cedro-australiano (Toona ciliata var. australis). Avaliou-se o número de brotos produzidos aos 60, 120 e 180 dias, bem como a correlação entre o diâmetro médio do tronco à altura do peito (DAP) e o número de brotos. Com as brotações resultantes de cada método, produziram-se estacas que foram submetidas à retirada e ao corte de folíolos, e então receberam a aplicação de ácido indolbutírico (AIB) (0 e 6.000 mg L -1 ). Avaliou-se a influência dos fatores método de resgate, tempo de coleta, número de folíolos das estacas e planta matriz, em presença e ausência de AIB, na sobrevivência e no enraizamento das estacas. Não houve correlação entre o DAP das árvores e o número de brotações. O corte raso aos 120 dias proporcionou a maior produção de brotos (15,31). Estacas obtidas do semianelamento apresentaram maior sobrevivência (57,8%) e enraizamento (55,5%). Estacas com dois pares de folíolos inteiros e tratadas com 6.000 mg L -1 de AIB apresentaram maior sobrevivência (65,5%) e enraizamento (56,7%). Houve grande variação na sobrevivência e no enraizamento entre plantas matrizes. O resgate vegetativo e a estaquia apresentam potencial para multiplicação clonal de árvores adultas de cedro-australiano.Termos para indexação: Toona ciliata, enraizamento, propagação assexuada, propagação vegetativa, silvicultura clonal. Vegetative rescue and propagation of Australian red cedar by cuttingsAbstract -The objective of this work was to evaluate vegetative rescue methods for the production of cuttings (clearcutting, full annealing, and half-annealing) of red cedar (Toona ciliata var. australis) mature trees. The number of produced shoots was evaluated at 60, 120 and 180 days, as well as the correlation between stem mean diameter at breast height (DBH) and the number of sprouts. From the resulting sprouts of each method, cuttings were produced and subjected to cutting and removal of leaflets, and then received the application of indolbutyric acid (IBA) (0 and 6,000 mg L -1 ). Evaluations were made for the influence of the following factors on plant survival and rooting: rescue method, collection time, number of leaflets of cuttings, and matrix tree, in the presence and absence of IBA. There was no correlation between the DBH of trees and the number of produced shoots. Clearcutting at 120 days provided the highest increase of shoots (15.31). Cuttings obtained from half-annealing had higher survival (57.8%) and rooting (55.5%) rates. Cuttings with two pairs of preserved leaflets and treated with 6,000 mg L -1 IBA showed higher rates of survival (65.5%) and rooting (56.7%). There was wide variation in survival and rooting capacity among matrix trees. The vegetative rescue and propagation by cuttings have potential for clonal multiplication of Australian red cedar mature trees.

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Seasonal fluctuation of root carbohydrates in hybrid aspen clones and its relationship to the sprouting efficiency of root cuttings

Cited by 17 publications

References 20 publications

Propagation of <i>Garcinia kola</i> (Heckel) by stem and root cuttings

Propagation of <i>Garcinia kola</i> (Heckel) by stem and root cuttings

VEGETATIVE PROPAGATION Of VITEX DONIANA SWEET fROM ROOT SEGMENT CuTTINGS

Resgate vegetativo e propagação de cedro-australiano por estaquia

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