Produção de mudas cítricas em diferentes porta-enxertos e substratos comerciais

Fochesato, Mário Luís; Souza, Paulo Vítor Dutra de; Schäfer, Gilmar; Maciel, Hardi Schmatz

doi:10.1590/s0103-84782006000500008

Cited by 12 publications

(15 citation statements)

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“…Os porta-enxertos são propagados, quase que exclusivamente, por sementes (via seminífera), onde destaca-se a importância dos potenciais de germinação, e consequentemente, de emergência, para o desenvolvimento inicial das plântulas, antecipando ou retardando a realização da enxertia (borbulhia) da variedade-copa, em alguns casos atingindo até 30% do tempo total de produção da muda cítrica, variando em função da precocidade e homogeneidade das sementes (Fochesato et al, 2006;Rodrigues et al, 2012;Cunha Sobrinho et al, 2013;Soares et al, 2015).…”

Section: Discussionunclassified

Emergência e desenvolvimento inicial de porta-enxertos de citros no semiárido do Ceará, Brasil

Sombra¹,

Silva²,

Loureiro³

et al. 2019

Citrus Res. Technol.

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Section: Discussionunclassified

Emergência e desenvolvimento inicial de porta-enxertos de citros no semiárido do Ceará, Brasil

Sombra¹,

Silva²,

Loureiro³

et al. 2019

Citrus Res. Technol.

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“…Fachinello et al (2005) reported that callus formation is observed as a result of a trauma during the preparation of the cutting, however Hartman et al (1997) asserts that rooting-inhibiting substances contained in adult plants may be the reason for no callus formation. Phytotoxicity by growth regulators is generally due to the fact that auxins, besides being promoters of rooting, also induce hormonal disruption of cuttings in higher concentrations, inhibiting rooting (FRANZON et al, 2004;HERRERA et al, 2004;FOCHESATO et al, 2006). The species S. lutea, T.…”

Section: Discussionmentioning

confidence: 99%

Propagation through cutting technique of species ocurring in the Lower São Francisco River in Sergipe State with different concentrations of indolbutiric acid

Holanda

Vieira²,

Filho

et al. 2012

Rev. Árvore

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-The objective of this work was to evaluate the feasibility of vegetative propagation through cutting technique of seven tree species with strong occurrence in the riparian forest of the Lower São Francisco River in Sergipe State, under different concentrations of indolbutiric acid at 0, 2500, and 5000 mg.L -1 , for potentialization of its use in soil bioengineering technique. It was used a complete random block design with three replicates, and a total of twenty-one treatments. The evaluation period was 120 days for each species, and the data collection was made in intervals of fifteen days, in a total of eight evaluations for each species. The evaluated parameters were: Survival Rate, callus formation, and Root Dry matter Weight. Among the studied species, Schinus terebinthifolius Raddi presented the best results related to cutting technique mainly under the indolbutiric acid concentration of 2500 mg.L -1 .

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“…The difference of development is common to be found among the rootstocks, which may occur due to different genetic characteristics, which affect the light and CO 2 use, influencing the uptake, transport and interaction of nutrients in the plant (Fochesato et al, 2006). However, each species can develop mechanisms to grow under adverse conditions, such as the reduced availability of water, which is one advantage of 'Rangpur' lime compared to other rootstocks that without addition of the polymer, it showed a higher number of roots (Table 3).…”

Section: Rootstocksmentioning

confidence: 99%

Hydrogel polymer in emergency and early growth of citrus rootstocks

Fagundes¹,

Camilo²,

Soares³

et al. 2014

Afr. J. Agric. Res.

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The development of techniques for rapid and uniform emergence of seeds is the alternative to the diversification of citrus rootstocks that were little used due to low vigor compared to 'Rangpur' lime, the main rootstock used in Brazil, but it has shown susceptible to serious disease problems, such as the citrus sudden death (CSD). The addition of the hydrogel polymer to the substrate can increase the uniformity of seed emergence and reduce the time for the production of rootstocks due to the increase in water availability. Thus, the study was done to evaluate the formulation of the substrate with the hydrogel polymer on the uniformity of emergence and early growth of citrus rootstocks. The factorial scheme 3 × 2 × 2 was used, with the factors: Three rootstocks ['Rangpur' lime (Citrus limonia Osbeck), Poncirus trifoliata (L.) and 'Sunki' mandarin (Citrus sunki Hort. ex Tanaka); two formulations of substrate (with and without 0.4 g per container of Hidroplan-EB/HyB-M ® polymer and two environments (greenhouse with an average maximum temperature of 36.6°C and minimum of 17.2°C and growth chamber programmed with temperature to 25°C and a photoperiod of 12 h, distributed in a completely randomized design with four replications and 35 seeds per plot. The emergency velocity index (EVI), the percentage of emergence and early growth of rootstocks were evaluated. Data were subjected to analysis of variance and the means were compared by Tukey test at 5% of probability. The addition of the polymer to the substrate favored the percentage of emergence and EVI of 'Rangpur' lime and of mandarin 'Sunki' seeds in the growth chamber. The 'Rangpur' lime was the rootstock which presented the highest percentage of emergence and uniformity in both environments. The addition of the hydrogel polymer to substrate favored initial growth of citrus rootstocks.

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Produção de mudas cítricas em diferentes porta-enxertos e substratos comerciais

Abstract: RESUMO Analisou-se o desenvolvimento de duas variedades-copa enxertadas sobre diversos porta-enxertos e produzidas em substratos comerciais sob ambiente protegido. O experimento foi desenvolvido em casa de vegetação na

Cited by 12 publications

References 1 publication

Emergência e desenvolvimento inicial de porta-enxertos de citros no semiárido do Ceará, Brasil

Emergência e desenvolvimento inicial de porta-enxertos de citros no semiárido do Ceará, Brasil

Propagation through cutting technique of species ocurring in the Lower São Francisco River in Sergipe State with different concentrations of indolbutiric acid

Hydrogel polymer in emergency and early growth of citrus rootstocks

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