Promotion of Adventitious Root Formation of Difficult‐to‐Root Hardwood Tree Species

Pijut, Paula M.; Woeste, Keith; Michler, Charles H.

doi:10.1002/9780470872376.ch6

Cited by 77 publications

(105 citation statements)

References 91 publications

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“…The greatest callus formation occurred in cuttings not treated with IBA, with a decreasing tendency as the concentration of auxin increased to 8000mg L -1 , regardless of the substrate used ( Table 2). The use of auxin during adventitious rooting increases the formation of calli, in addition to inducing root formation (PIJUT et al, 2011), which was not observed in this study. There was an antagonistic relationship between the rooting and callus formation, suggesting that these processes compete for assimilates, since the greatest rooting responses generally occurred in treatments with lower callus formation (Tables 1 and 2).…”

Section: Resultscontrasting

confidence: 44%

“…Use of auxin and the predisposition to differentiate roots are important factors that must be considered in rooting, since tissues obtained from the same plant often have different responses to auxin treatment (PIJUT et al, 2011). Throughout the sprouting process, there may be differences in the content of carbohydrates, amino acids and other substances that serve as energy reserves required for the morphogenetic responses (HARTMANN et al, 2011).…”

Section: ------------------------------------------------------------mentioning

confidence: 99%

“…This is due to the high degree of plant maturity, making adventitious root induction difficult or impossible (PIJUT et al, 2011). However, recalcitrance to rooting is a feature that may be reversible (HACKETT & MURRAY, 1993) by the use of some strategies such as micropropagation, plant growth inhibitors, serial propagation, successive pruning and regrowth (BITENCOURT et al, 2009;WENDLING et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…However, recalcitrance to rooting is a feature that may be reversible (HACKETT & MURRAY, 1993) by the use of some strategies such as micropropagation, plant growth inhibitors, serial propagation, successive pruning and regrowth (BITENCOURT et al, 2009;WENDLING et al, 2014). Epicormic shoots from lateral buds from the base of the plant have been used for the propagation of some tree species (PIJUT et al, 2011;WENDLING et al, 2013), enabling the rescue of adult plants that present difficult rooting.…”

Section: Introductionmentioning

confidence: 99%

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Cuttings of post fire epicormic shoots of Ilex paraguariensis and Cabralea canjerana adult plants

et al. 2017

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The aim of this research was to evaluate the feasibility of rescuing adult plants by cuttings from post-fire epicormic shoots. We evaluated the native tree species erva mate ( Ilex paraguariensis St. Hil.) and canjerana ( Cabralea canjerana Vell. Mart.), which present difficult seedling production and are economically and ecologically important. The plant material used for the preparation of cuttings consisted of shoots from bud differentiation of tissue from the stem collar of the trees. One-bud cuttings of erva mate were treated with 4000 or 8000mg L-1 of indolebutiric acid (IBA) and the checks were not treated with auxins. The cuttings were grown in three different substrates: carbonized rice husks, vermiculite and coarse sand. The experiment was a factorial with a completely random design and five replicates of five cuttings. One-bud cuttings from the basal, intermediate and apical parts of canjerna shoots were treated with 0 or 6000mg L-1 of IBA and planted in commercial substrate and coarse sand (3:2 v/v). The experiment was a factorial with a completely random design and ten replicates of three cuttings. Cuttings from post-fire epicormic shoots can be used for rescuing erva mate and canjerana adult plants. Erva mate cuttings treated with 8000mgL-1 IBA have increased rooting when grown in coarse sand. Canjerana cuttings from the basal part of epicormic shoots have greater survival and rooting than those from intermediate and apical parts.

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Section: Resultscontrasting

confidence: 44%

Section: ------------------------------------------------------------mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cuttings of post fire epicormic shoots of Ilex paraguariensis and Cabralea canjerana adult plants

et al. 2017

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“…In vitro storage can also delay the maturation of valuable clones, especially if their shoots or callus are stored under minimal-growth or nil-growth conditions [39,40,42,[180][181][182]. Plantation trees generally display higher adventitious rooting capacity, stem growth, internode length, and developmental commitment to vegetative growth when they are propagated from juvenile, rather than mature, explants or cuttings [54,55,61,62,183,184]. However, many eucalypt species progress through some of these juvenile-to-mature phase transitions at a very young age and low canopy height [11,39,40,44,63,64,67,185].…”

Section: In Vitro Preservationmentioning

confidence: 99%

Tissue Culture of Corymbia and Eucalyptus

Trueman

Hung

Wendling

2018

Forests

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Eucalypts are among the world's most widely planted trees, but the productivity of eucalypt plantations is limited by their often-low amenability to true-to-type propagation from cuttings. An alternative approach to cutting propagation is tissue culture, which can be used to micropropagate valuable genotypes rapidly while simultaneously preserving germplasm in vitro. This review describes the use of tissue culture methods such as shoot culture, organogenesis, and somatic embryogenesis for micropropagating eucalypts. This review also discusses the use of cool storage, encapsulation, and cryopreservation methods for preserving eucalypt germplasm and delaying tissue maturation under minimal-growth conditions.

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