Vegetative rescue and cloning of Eucalyptus benthamii selected adult trees

Baccarin, Francisco José Benedini; Brondani, Gilvano Ebling; Almeida, Lívia Vieira de; Vieira, Israel Gomes; Oliveira, Leandro Silva de; Almeida, Marcílio de

doi:10.1007/s11056-015-9472-x

Cited by 36 publications

(32 citation statements)

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“…Studies comparing forest products, such as those provided by Eucalyptus, have also shown reduced environmental impact and reduced costs of delivered biomass of their products (Daystar et al 2014). Therefore, Corymbia An Acad Bras Cienc (2017) 2 GILVANO E. BRONDANI et al and Eucalyptus have been among the major trees to which researchers have devoted their studies, especially considering strategies for efficiently cloning superior genotypes, individual species or hybrids (Nourissier and Monteuuis 2008, Hung and Trueman 2011, Brondani et al 2012, Oliveira et al 2012, Baccarin et al 2015, Oberschelp and Gonçalves 2016. In recent decades, increasing research has been devoted to breeding Corymbia and Eucalyptus.…”

Section: Introductionmentioning

confidence: 99%

“…In recent decades, increasing research has been devoted to breeding Corymbia and Eucalyptus. As a result, vegetative propagation methods have been constantly improved to maximize clonal production, especially by tissue rejuvenation (Wendling et al 2014a(Wendling et al , b, 2015 and an increase in adventitious rooting (Hartmann et al 2011, Baccarin et al 2015. Nevertheless, considerable challenges for improving adventitious rooting have been revealed by genotypes with low performance (Brondani et al 2012) or even with no rooting ability.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of temperature on the ex vitro adventitious rooting of Corymbia and Eucalyptus microcuttings might be evaluated with small chambers that work as mini-incubators, as already tested by Brondani et al (2012), Baccarin et al (2015) and Oliveira et al (2015). The miniincubator consists of a small structure prepared with plastic recipients for horticulture covered with plastic.…”

Section: Introductionmentioning

confidence: 99%

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Mini-incubators improve the adventitious rooting performance of Corymbia and Eucalyptus microcuttings according to the environment in which they are conditioned

Brondani

Oliveira

Konzen

et al. 2018

An. Acad. Bras. Ciênc.

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We addressed a major challenge in the in vitro clonal propagation of Corymbia citriodora, Eucalyptus urophylla and E. benthamii by using an ex vitro adventitious rooting strategy in a mini-incubator. Miniincubators were placed in four environments for rooting. A shade house with no fogging system and a greenhouse with no ventilation but with a fogging environment had the best performance in terms of rooting, root growth and survival of microcuttings. Daily recording of the temperature within each miniincubator in each environment allowed the verification of negative correlations between the maximum average temperature and the survival, adventitious rooting and root growth. The ideal maximum air temperature for the efficient production of clonal plants was 28.4°C (± 5.5°C), and the minimum was 20.3°C (± 6.2°C). E. benthamii was more sensitive to higher temperatures than C. citriodora and E. urophylla. Nevertheless, placing mini-incubators in the shade house with no fogging system resulted in a stable and uniform performance among the three species, with 100.0% survival and 81.4% rooting. Histological sections of the adventitious roots revealed connection with the stem vascular cambium. Therefore, our experimental system demonstrated the potential of mini-incubators coupled with the proper environment to optimize the adventitious rooting performance of microcuttings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mini-incubators improve the adventitious rooting performance of Corymbia and Eucalyptus microcuttings according to the environment in which they are conditioned

Brondani

Oliveira

Konzen

et al. 2018

An. Acad. Bras. Ciênc.

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“…In the case of woody species, long-term experiments are often impractical to determine these changes (Baccarin et al, 2015). However, ripening is not only a consequence of chronological age, and further studies are necessary to define these parameters in P. angustifolia.…”

Section: Resultsmentioning

confidence: 99%

“…The use of techniques, such as mini-cuttings, has subsidized the evolution of clonal forestry with increased productivity, standardization of crops and, especially, qualifying forest products (Wendling, Brondani, Dutra, & Hansel, 2010;Baccarin et al, 2015;Kratz, Stuepp, Pires, & Wendling, 2015). In P. angustifolia, this technique has proved to be promising.…”

Section: Introductionmentioning

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 Vitro Approaches for the Improvement of Eucalyptus

Kendurkar

Rangaswamy

2018

Biotechnologies of Crop Improvement, Volume 1

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Vegetative rescue and cloning of Eucalyptus benthamii selected adult trees

Cited by 36 publications

References 36 publications

Mini-incubators improve the adventitious rooting performance of Corymbia and Eucalyptus microcuttings according to the environment in which they are conditioned

Mini-incubators improve the adventitious rooting performance of Corymbia and Eucalyptus microcuttings according to the environment in which they are conditioned

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

In Vitro Approaches for the Improvement of Eucalyptus

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