SAZONALIDADE E SOLUÇÕES NUTRITIVAS NA MINIESTAQUIA DE Araucaria angustifolia (Bertol.) Kuntze

Pires, Patrícia Pereira; Wendling, Ivar; Auer, Celso Garcia; Brondani, Gilvano Ebling

doi:10.1590/0100-67622015000200008

Cited by 14 publications

(12 citation statements)

References 9 publications

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“…For araucaria, minicuttings technique has been developed with good success for juvenile propagules derived from seedlings (PIRES, 2012), which is an excellent indication of the potential suitability of adults for vegetative propagation. For seeds production, on the other hand, the technique with larger application in forest species is grafting (ROCHA et al, 2002) with the use of adult propagules from the crown.…”

Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 99%

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

Wendling

Brondani

2015

Rev. Árvore

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-Brazilian pine or araucaria (Araucaria angustifolia) is a coniferous tree with great economic, social and environmental importance in southern Brazil, being exploited for both wood production and for its edible pine nuts. However, no efficient cloning techniques are available and, therefore, the purpose of this study was to evaluate the effectiveness of vegetative rescue methods for cuttings propagation of the species. Shoots/cuttings were generated in two ways: 26 years old trees underwent coppicing and 20 years old trees had the primary branches on the upper third of crown pruned at 2, 20 and 50 cm from the main trunk. Orthotropic shoots were rooted after application of indole-3-butyric acid (IBA) at 0, 2, 4 and 6 g.L -1. Coppicing produced 47 cuttings per plant with 90% orthotropic shoots, while pruning resulted in 182 cuttings per plant with 44% orthotropic shoots. Rooting success indexes were low with no influence of IBA, although they are slightly superior to the ones available in the literature for the species, ranging from 12 to 30% for the coppice shoots and from 0 to 28% for the branches shoots. We conclude that both vegetative rescue techniques are viable and have potentially important applications. Coppicing is recommended for the propagation aiming the production of wood, while shoots derived from the side branches of the crown are more appropriate for seeds orchards formation.Keywords: Brazilian pine; Cutting propagation; Clonal forestry. RESGATE VEGETATIVO E ESTAQUIA DE Araucaria angustifolia (Bertol.) Kuntze RESUMO -A araucária, ou pinheiro-brasileiro (Araucaria

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Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 99%

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

Wendling

Brondani

2015

Rev. Árvore

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“…Likewise, the increase in productivity during the summer and spring was the result of higher average temperatures in these seasons, which is common in forest species mini-cuttings (Pires, Wendling, Auer, and Brondani, 2015;Peña Peña, Zanette, & Biasi, 2015). Temperature is a preponderant factor during mini-cutting production; it exerts an influence on nutrient absorption and metabolism of the ministumps, with a consequent increase in the cell division of plants (Hartmann et al, 2011;Rasmussen et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

<b>Successive mini-cuttings collection in <i>Piptocarpha angustifolia</i> mini-stumps: effects on maturation, adventitious root induction and root vigor

et al. 2017

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ABSTRACT. The low percentage of seed germination and adventitious root induction in cuttings ofPiptocarpha angustifolia has limited its silvicultural use. Thus, we studied the effect of tissue maturation on successive collections of mini-cuttings grown in a semi-hydroponic system. Likewise, we evaluated potential multiplication via the mini-cutting technique by assessing the survival and productivity of ministumps as well as the formation of adventitious roots and the root vigor. We made 32 sprout collections during two years in a clonal mini-garden. From these collections, mini-cutting experiments were installed throughout several seasons. Mini-cuttings of 8±1 cm long were prepared, planted in boxes with vermiculite and carbonized rice husk (1:1 v/v) and placed in a greenhouse. After 70 days, we evaluated the adventitious rooting percentage as well as the adventitious root and aerial vigor of the mini-cuttings. The appropriate survival of mini-stumps (68%) and the annual production of mini-cuttings per square meter (2,227) reflected the efficiency of the semi-hydroponic system for this species. The increasing rooting, multiplication rate and root vigor indicate no maturity in the course of the collection of mini-cuttings in P. angustifolia mini-stumps.Keywords: juvenility, multiplication rate, ontogenetic age, root induction, vegetative propagation.Coletas sucessivas de miniestacas em minicepas de Piptocarpha angustifolia: efeito sobre a maturação, enraizamento e vigor radicial RESUMO. Os reduzidos percentuais de germinação de sementes e enraizamento de miniestacas de Piptocarpha angustifolia têm limitado sua evolução silvicultural. Objetivou-se estudar o efeito de sucessivas coletas de miniestacas cultivadas em sistema semi-hidropônico sobre a maturação e o potencial de multiplicação via miniestaquia, por meio da avaliação da sobrevivência, produtividade das minicepas e enraizamento e vigor radicial das miniestacas. Foram realizadas 32 coletas de brotações durante dois anos em minijardim clonal. A partir destas, foram instalados experimentos de miniestaquia em cada estação climática. Foram preparadas miniestacas de 8±1 cm, plantadas em caixas com vermiculita e casca de arroz carbonizada (1:1 v/v) e acondicionadas em casa de vegetação. Transcorridos 70 dias avaliaram-se o enraizamento e o vigor radicial e vegetativo das miniestacas. A boa sobrevivência de minicepas (68%) e produção anual de miniestacas por metro quadrado (2227) refletem a eficiência do sistema semihidropônico para a espécie. O aumento do enraizamento, taxa de multiplicação e vigor radicial indicam não haver maturação no decorrer das coletas de miniestacas em minicepas de P. angustifolia.Palavras-chave: juvenilidade, taxa de multiplicação, idade ontogenética, rizogênese, propagação vegetativa.

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“…In warm seasons, the plants species are in full vegetative growth, with the emission of buds and young leaves and, therefore, they present the best balance between nutrient uptake and sprout recovering (BRONDANI et al, 2010;STUEPP et al 2015). Further studies have also reported higher productivity of ministumps in high temperature (FERRIANI et al, 2011;PIRES et al, 2015). These results are greater than those obtained on other species (WENDLING et al, 2007;DIAS et al, 2012), however, it is necessary to consider the infl uence of distinct systems.…”

Section: Resultsmentioning

confidence: 99%

USE OF RENEWABLE SUBSTRATES FOR EX VITRO PRODUCTION OF Melaleuca alternifolia CHEEL CLONAL PLANTS BY MINI-CUTTINGS TECHNIQUE

Stuepp

Fragoso

Monteiro

et al. 2017

CERNE

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The Australian species Melaleuca alternifolia Cheel. has a strong commercial importance due to the extraction of essential oils from its leaves used in the cosmetic and pharmaceutical industry. In order to obtain an efficient plant production system of M. alternifolia the mini-cuttings technique and the clonal mini-garden management in the productivity and rooting of mini-cuttings and different substrate compositions were analyzed during all the seasons. Mini-stumps derived from cuttings and grown in pots (2 L), were submitted to successive harvesting of their sprouts during the four seasons (september/2013 to august/2014). From the mini-stumps sprouts mini-cuttings were produced, wich were were planted in plastic tubes and kept in a greenhouse for 45 days. Six substrates were used for planting the mini-cuttings: commercial substrate (S1); substrate composed of 100% carbonized rice husk (CRH) (S2); substrate composed of 100% coconut fiber (CF) (S3); substrate composed of 50% CF and 50% CRH (S4); substrate composed of 30% CF and 70% CRH (S5); substrate composed of 70% FC and 30% CRH (S6). The high survival of mini-stumps (over 90%) and the mini-cuttings production (282 mini-cuttings.m-2.month-1) in the shade house demonstrate the technical feasibility for the species, being summer the most appropriate time to collect propagules. The substrate composed by 70% CF + 30% CRH (S6) shows superior results for vegetative propagation of M. alternifolia (91.7% of rooted mini-cuttings), as the single one to contemplate simultaneously all parameters. Summer is recommended as the best time for rooting of mini-cuttings.

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SAZONALIDADE E SOLUÇÕES NUTRITIVAS NA MINIESTAQUIA DE Araucaria angustifolia (Bertol.) Kuntze

Cited by 14 publications

References 9 publications

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

<b>Successive mini-cuttings collection in <i>Piptocarpha angustifolia</i> mini-stumps: effects on maturation, adventitious root induction and root vigor

USE OF RENEWABLE SUBSTRATES FOR EX VITRO PRODUCTION OF Melaleuca alternifolia CHEEL CLONAL PLANTS BY MINI-CUTTINGS TECHNIQUE

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