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Title: Adventitious rooting of conifers: influence of physical and chemical factors
Authors: Ragonezi, Carla
Klimaszewska, Krystyna
Castro, Mário Rui da Costa Basílio e
Lima, Mónica
Oliveira, Paulo Guilherme de
Zavattieri, Maria Amely
Keywords: Cuttings
In vitro culture
Issue Date: 9-Sep-2010
Publisher: Springer-Verlag
Citation: Carla Ragonezi, Krystyna Klimaszewska, Mário Rui Castro, Mónica Lima, Paulo de Oliveira, Maria Amely Zavattieri. Adventitious rooting of conifers: influence of physical and chemical factors. Trees; December 2010, Volume 24, Issue 6, pp 975-992
Abstract: In conifers, vegetative propagation of superior genotypes is the most direct means for making large genetic gains, because it allows a large proportion of genetic diversity to be captured in a single cycle of selection. There are two aims of vegetative propagation, namely large-scale multiplication of select genotypes and production of large numbers of plants from scarce and costly seed that originates from controlled seed orchard pollinations. This can be achieved, in some species, either through rooted cuttings or rooted microshoots, the latter regenerated through tissue culture in vitro. Thus far, both strategies have been used but often achieved limited success mainly because of difficult and inefficient rooting process. In this overview of technology, we focus on the progress in defining the physical and chemical factors that help the conifer cuttings and microshoots to develop adventitious roots. These factors include plant growth regulators, carbohydrates, light quality, temperature and rooting substrates/media as major variables fordevelopment of reliable adventitious rooting protocols for different conifer species.
ISSN: 0931-1890
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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