Abstract: Understanding the mechanisms involved in tree species maturation, related mainly to ontogenetic age effects, has contributed significantly vegetative propagation process of Brazilian native species, with consequent application clonal forestry. A number methodologies been developed rescue and vegetatively propagate these for silvicultural environmental restoration purposes. However, types purposes propagation, as well choice suitable processes propagules considering intended...

Qualitative and quantitative hormone analyses have been essential for understanding the metabolic, physiological, morphological processes that are influenced by plant hormones. Auxins key hormones in control of many aspects growth development their endogenous levels considered critical process adventitious root induction. Exogenous auxins used extensively clonal propagation tree species cuttings or tissue culture. Understanding auxin effects has advanced with increasingly accurate methods...

Epicormic shoots were induced in stumps and detached branches of adult Paulownia fortunei var.mikado plants to evaluate rooting potential.Stem cuttings obtained from stump prepared with 12 cm length two leaves reduced 78.5 cm² (10 diameter).Cuttings 8-10 length, 50 % the original size.Anatomical analysis was performed possible barriers rhizogenesis.After disinfestation, indolebutyric acid (IBA) applied (0, 500, 1,000, 1,500 2,000 mg L -1 ).Installation made plastic pots a volume 170 cm³ 53...

Abstract: The objective of this work was to evaluate the feasibility early selection open-pollinated yerba mate (Ilex paraguariensis) progenies, and classify best parents candidates for clones. germplasm is composed 140 progenies collected from areas within natural distribution species in Southern Brazil a commercial genotype (control). experiment established Ivaí, state Paraná, Brazil, March 1997, randomized complete blocks, with ten replicates, linear plots six plants. mass (kg per plant)...

ABSTRACTWe aimed to evaluate the technical efficiency of mini-cuttings technique on vegetative propagation Paulownia fortunei (Seem.) Hemsl. var. Mikado, as well possible existence anatomical barriers its rooting. Therefore, plants originated from cuttings formed mini-stumps and, consequently clonal mini-garden, which was conducted in semi-hydroponic system. We evaluated survival and sprouts production for five successive collects, percentage rooting their description. The were prepared with...

The selection of yerba mate superior genotypes, based on each plant leaf weight, is genetic parameters obtained from experimental plantations and it practically impossible the fourth year age. Therefore, we estimate check feasibility through notes weight estimates tree at 18.5 years material consists a combined trial provenances progenies half-sibs with 140 7 provenances, installed in Ivaí, Paraná, Brazil, randomized block design 10 repetitions. control production low magnitude (ĥ2a=...

Objetivou-se avaliar a viabilidade técnica da utilização de casca arroz carbonizada (CAC), fibra coco (FC), vermiculita média (VM) e substrato comercial à base pínus semidecomposta (SC) como componentes para formulação substratos produção mudas Ilex paraguariensis por miniestaquia, bem as respectivas propriedades físicas químicas das composições formadas sua relação com variáveis biométricas mudas. Para tanto, foram formulados nove substratos, os quais tiveram suas analisadas. Nas...

ABSTRACT: Prunus serrulata is a species widely used in the ornamentation and its economic importance mainly due to time of flowering. The objective was assess feasibility cutting technique for propagating P. , using stem cuttings from current-year shoots, estimate maximum efficiency concentration auxin indole butyric acid (IBA), promotion rooting. Collection plant material took place late spring. Cuttings were made with about 8±1cm length two leaves reduced 50% original surface. Twenty one...

ABSTRACT The objective of this study was to evaluate the technical viability and influence rootstock age grafts growth habit on Araucaria angustifolia top grafting. Two rootstocks (8 35-year-old) were grafted with originating from two habits (orthotropic plagiotropic). We used patch grafting technique in middle upper third crown 8-year-old trees, lower 35-year-old always near apex primary branches. experiments performed during fall spring/2015. treatments consisted of: orthotropic grafts;...

The Japanese Flowering Cherry (Prunus serrulata Lindl.), also known as Hill Cherry, is an exotic species native to the East Asia, widely used in landscaping, with excellent ornamental potential due its flowering and vegetative characteristics such bright bark showy foliage. Despite commercial importance, there no information literature about propagation of this species, a method that could facilitate production seedlings selected anticipation. Thus, study aimed evaluate effect different...

A erva-mate (Ilex paraguariensis) é uma espécie arbórea, nativa da América do Sul e largamente consumida na forma de chá. Em ervais debilitados, a poda recuperação utilizada para retomada vigor vegetativo, bem como o anelamento, os quais estimulam emissão brotações. O presente trabalho teve objetivos verificar influência anelamento em combinação com aplicação diferentes concentrações benzil-amino-purina (BAP) decepa alturas brotações por matrizes 17 mais 80 anos idade, no inverno/2006...

RESUMO A erva-mate é conhecida por seu uso na forma de infusões, como chás e chimarrão. Porém, há um vasto campo aplicação desta espécie, principalmente indústria cosméticos medicamentos. Um dos fatores limitantes à clonagem comercial a falta métodos eficientes rejuvenescimento material adulto. Propágulos juvenis podem ser obtidos meio anelamento ou decepa árvores adultas. Desta forma, o objetivo deste trabalho foi verificar capacidade enraizamento estacas oriundas brotações 12 meses idade...

ABSTRACT Araucaria angustifolia (Bert.) O Kuntze (Paraná pine or Araucaria) is a potential forestry native species for Brazilian silviculture. However, number of challenges and technical restraints persist, hindering its silvicultural expansion, among which are the lack cloning technologies superior genetic materials their assessment under field conditions. Thus, we evaluated use araucaria plants derived from cuttings seeds timber production, by assessing survival, growth strobilus...

Araucaria angustifolia (araucaria) is a remarkable species in the Mixed Ombrophilous Forest.The low germination of stored seeds and its long reproductive cycle make grafting good alternative for propagation, making possible to obtain genetically superior trees with early fruiting.However, araucaria still fraught technical problems, culminating graft survival.With objective define be able explain best methodology araucaria, we conducted studies based on five experiments evaluating effects of:...

Melaleuca alternifolia Cheel é uma planta medicinal de importância econômica.Sua constituição química bem conhecida, sendo rica em terpinen-4-ol, principal responsável por suas propriedades medicinais.Contudo, esta espécie apresenta entraves à obtenção mudas qualidade via sementes, maneira que a propagação vegetativa pode beneficiar sua comercialização, mantendo as características produtivas e do óleo extraído.O presente trabalho objetivou avaliar o enraizamento estacas melaleuca coletadas...

ABSTRACT Commercial biomass production is one of the main indicators for selecting erva-mate (Ilex paraguariensis) progenies and clones. Traditional techniques to obtain such information depend on harvesting trees there are some limitations involved, as high cost reduced convenience. Thus, in our research we evaluated efficiency indirect methods through commercial estimation score productivity according different provenances, gender morphotypes. In a provenances trial installed 1997, two...

Abstract The objective of this work was to evaluate the effect different compositions renewable substrates and seasons year on quality Piptocarpha angustifolia clonal plants. experiment carried out in a completely randomized design 4x6 factorial arrangement (four x six substrate compositions). analyzed were: S1, commercial with pine bark coconut fiber base (CF); S2, carbonized rice husk (CRH); S3, fibrous grainy CF; S4, 50% CF CRH; S5, 30% 70% S6, CRH. Minicuttings 8±1 cm were planted tubes...

Abstract: The objective of this work was to evaluate the survival and initial growth, in field, eucalyptus seedlings produced different substrates. Eucalyptus benthamii 36 substrates were evaluated field. consisted mixtures, at volumetric proportions, of: carbonized rice husk, charcoal with granulometry between 1.0-3.0 mm, 3.0-5.0 coconut fiber, semi-decomposed pine bark, fine vermiculite, sewage sludge, peat moss. At 1, 2, 3, 6, 12, 18, 24 months after planting, survival, height, diameter...

Due to its economic, social, and ecological potential, Ilex paraguariensis A. St. Hil is considered one of the most important native forestry species in southern Brazil, needing high production quality plants supply consumption. Therefore, vegetative propagation a key technique since it enables with higher standard genetic quality. Several studies have focused on defining appropriate methods for rooting yerba mate cuttings, even though overall indexes are not yet appropriate. Thus, objective...

http://dx.doi.org/10.5902/1980509819617Paulownia fortunei é natural da China e destaca-se pelo crescimento acelerado baixa densidade madeira, associada a uma resistência ao ataque de agentes xilófagos. Contudo, o baixo poder germinativo das sementes dessa espécie tem incentivado sua reprodução pela propagação vegetativa. Dessa forma, este trabalho teve por objetivo avaliar enraizamento vigor radicial estacas provenientes brotações epicórmicas árvores adultas decepadas, coletadas em...

ABSTRACT: We aimed to evaluate the rooting potential of Tibouchina sellowiana through experiments: I - Cuttings from current-year shoots and epicormic were submitted IBA concentrations: 0, 500, 1000, 1500 2000mg L-1, in a factorial arrangement 2 x 5 (two types cuttings five concentrations), with four replicates 20 each; II mini-stumps successive collecting during seasons, split-plot design, replications ten per experimental unit. From mini-stumps, mini-cuttings produced, which initially kept...

O objetivo deste trabalho foi verificar o enraizamento de estacas brotações epicórmicas provenientes anelamento e decepa árvores adultas erva-mate com 17 80 anos, no inverno verão. plantio realizado em caixas preenchidas vermiculita casca arroz carbonizada 1:1 (v/v) após 90 dias casa vegetação, foram avaliados a porcentagem enraizamento, número raízes, comprimento médio sobrevivência, os calos mortalidade. Estacas anos apresentam elevada taxa (88,7%), (13,3) raízes (3,3 cm).

Juniperus chinensis L. var. kaizuka, belonging to the Cupressaceae family and known as kaizuka is a species widely used in landscaping, being different from other varieties of mainly because its tortuous growth habits. The sexual reproduction has disadvantages propagation by cuttings can facilitate production seedlings. Thus, this study aimed evaluate effect three concentrations synthetic auxin indolebutyric acid (0, 1500 3000 mg L-1) promote rooting collected basal (0.5 2.0 m), middle (2.1...

ABSTRACT This study presents an efficient system with high productivity and quality for Acer palmatum propagation. We evaluated the efficiency of mini-cuttings technique, management mini-stumps, production shoots, rooting root vigor on two seasons. The mini-stumps were planted in pots liters, put up environments (full sunlight area shade house) submitted to weekly fertigation. Over six collections, we survival clonal mini-garden (Experiment I). From these, performed experiments...