VEGETATIVE PROPAGATION OF Cordia trichotoma (VELL.) ARRAB. EX STEUD. BY CUTTINGS FROM SHOOTS AND ROOTS

Bisognin, Dílson Antônio; Kielse, Paula; Lencina, Kelen Haygert; Mello, Uilian Stefanello de

doi:10.1590/01047760202026022732

Cited by 5 publications

(3 citation statements)

References 15 publications

(25 reference statements)

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“…When associated with hydrogen peroxide (H 2 O 2 ), it also improves the rooting capacity of the mini-cuttings from the lateral shoots of pruned seedlings (Silva et al, 2022). However, under humidity chamber conditions, the root cuttings of adult plants treated with IBA did not root until 180 days of cultivation (Bisognin et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Rooting of mini-cuttings and quality of plantlets of Cordia trichotoma

Avinio

Malheiros

Maculan

et al. 2022

Pesq. agropec. bras.

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The objective of this work was to evaluate the effects of indolebutyric acid (IBA) concentration, substrate composition and volume, and propagule type on the adventitious rooting and quality of Cordia trichotoma plantlets produced by mini-cuttings. Mini-cuttings were evaluated for rooting percentage and root number and length at 30 and 60 days of cultivation. Plantlets were evaluated for shoot height and stem diameter at 30, 60, 90, and 120 days of cultivation. The Dickson quality index, number of leaves, and fresh and dry weights of shoots and roots were also determined at 120 days of cultivation. The experiments were carried out in a completely randomized design, with six replicates, in a greenhouse, evaluating different concentrations of IBA, substrate composition and volume, and propagule type for adventitious rooting. Plantlets of C. trichotoma can be produced with quality and proper rooting from mini-cuttings with one or two buds or multiple buds (apical) when treated with 3,000 mg L-1 IBA and planted in 110 cm3 tubes containing equal proportions of substrate and vermiculite.

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Section: Introductionmentioning

confidence: 99%

Rooting of mini-cuttings and quality of plantlets of Cordia trichotoma

Avinio

Malheiros

Maculan

et al. 2022

Pesq. agropec. bras.

Self Cite

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“…Cordia trichotoma reproduces naturally by seed; however, this form of propagation results in specific restrictions in seedling production due to the high unevenness at the seed germination stage and the fact that sexual propagation confers high genetic variability to new generations, hampering commercial plantations, in which homogeneity is highly important (Tambarussi et al 2017, Bisognin et al 2020.…”

Section: Introductionmentioning

confidence: 99%

“…The rescue of selected adult trees in the field may be an alternative for vegetative propagation, in which the selection of trees is based on phenotypic traits of interest towards increasing forest productivity and improving the quality of timber as raw material (Tambarussi et al 2017, Bisognin et al 2020, Abiri et al 2020). Among the various existing techniques, the vegetative rescue method based on epicormic shoots is an alternative for the cloning of adult trees and is considered an excellent tool for vegetative propagation without the need to cut the selected tree (Baccarin et al 2015, Trueman et al 2018.…”

Section: Introductionmentioning

confidence: 99%

Emission of epicormic shoots and in vitro establishment of Cordia trichotoma selected adult trees

et al. 2022

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Cordia trichotoma, popularly known in Brazil as 'louro-pardo', has numerous environmental and timber-related applications. This species is naturally propagated by seeds; however, this form of propagation results in restricted seedling production due to high genetic variability associated with a low degree of forest improvement. Thus, the cloning of selected adult trees is an alternative for producing high-quality plants. The aims of this work were to evaluate the emission of epicormic shoots from pruned branches and to define a protocol for the in vitro establishment of C. trichotoma selected adult trees. Propagules used in these experiments were derived from the selection of four C. trichotoma adult trees. The branches were placed in a greenhouse to induce epicormic shoots. Number of shoots according to the climatic season (autumn and spring) and shoot collection time were evaluated. Three sodium hypochlorite concentrations were evaluated for five minutes (C 1 = 0.58 % active chlorine, C 2 = 1.12 % active chlorine, and C 3 = 2.12 % active chlorine) for in vitro establishment. Results indicated that the epicormic shoot technique could be considered viable for shoot emission of C. trichotoma, regardless of the climatic season (autumn or spring). Sodium hypochlorite solution applied for 5 minutes (1.12 % of active chlorine) was effective for the in vitro establishment of nodal segments from epicormic shoots, resulting in 61.3 % of established explants. These results are promising for the cloning of adult trees during the mature stage of development in the field without the need to cut the selected tree.

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