Ácido indolbutírico (AIB) e substratos na propagação vegetativa de Jatobá (Hymenaea courbaril L.) por miniestaquia

Moura, Luciana Coelho de; Titon, Miranda; Moura, Cristiane Coelho de; Souza, Cláudio Leite de; Santana, Reynaldo Campos

doi:10.34062/afs.v6i1.6434

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…One of the features of the substrate rice husk and vermiculite (T1) and Bioplant® (T7) is its high-water retention capacity, which may result in root rot in species that do not tolerate high moisture (Moura et al 2019), since water accumulation results in low oxygenation for root development (Zorzeto et al 2014), leading to plant death. High irrigation levels constitute another factor that can be attributed to this result, causing nutrient loss by leaching since it is a light and uncompacted product, which explains the fact that seedlings from treatment 1 and 7 have invested more in biomass the roots of the that in the area when compared to the other treatments (Fig.…”

Section: Discussionmentioning

confidence: 99%

Substrates based on swine wastewater in the production of seedlings of Guazuma ulmifolia (Malvaceae)

et al. 2022

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Swine wastewater (sw) can boost seedling growth and development in several species as this residue is rich in nutrients required by plants. This study tested the hypothesis that seedlings of Guazuma ulmifolia grown in a substrate based on swine wastewater showed better physiological and morphological performance. The seedlings were cultivated in seven substrates: T1 - rice husk and vermiculite; T2 - 20% sw; T3 - 40% sw; T4 - 60% sw; T5 - 80% sw; T6 - 100% sw; and T7 - 100% Bioplant®. Were evaluated the height (H), diameter (D), number of leaves (NF), as well as the H to D ratio, chlorophyll indices, gas exchange, biomass, allometric ratios, Dickson Quality Index (DQI), and mortality percentage of the seedlings. The data were analyzed by analysis of variance, and the means were compared by Tukey’s test. The substrates with the highest percentage of swine sludge promoted the highest H, D, NF, chlorophyll indices, gas exchange, stem biomass and IQD. The highest mortality was obtained in commercial substrate (85%) and carbonized rice husk and vermiculite (37.5%). Can be concluded that the substrates with high swine wastewater content were better for seedling G. ulmifolia.

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Section: Discussionmentioning

confidence: 99%

Substrates based on swine wastewater in the production of seedlings of Guazuma ulmifolia (Malvaceae)

et al. 2022

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“…Factors such as temperature and humidity, both in the rooting sector and in the greenhouse, can also affect the survival and rooting rates of mini-cuttings (Brondani, 2008;Xavier et al, 2013). According to reports in the literature concerning several forest species, while the ideal temperature for the rooting sector is between 20 and 30°C, the relative humidity should be at least 80% Brondani et al, 2007;Lamônica, 2013;Dias et al, 2015;Oliveira et al, 2016;Berude, 2018;Rodrigues, 2018;Somavila, 2018;Souza, 2019). These values are similar to those observed in the present work and other works related to the vegetative propagation of P. reticulata (Neubert et al, 2017;Pessanha et al, 2018;Rodrigues, 2018).…”

Section: Experiments 2 -Mini-garden Management and Clonal Seedling Promentioning

confidence: 99%

Mini-cutting of Plathymenia reticulata benth. with ministumps conducted in suspended seedbed and tubes

Carvalho

Siqueira

Silva

et al. 2021

CERNE

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Background: Despite the importance of Plathymenia reticulata for forestry and ecological purposes, a protocol for the vegetative propagation of the species remains unclear mainly due to the low adventitious rooting of the propagules of the species. In this sense, this work aimed to evaluate the rooting of minicuttings of juvenile materials of P. reticulata and our hypothesis: (1) maintaining propagules under mist chamber for different periods affects the rooting process; (2) the mini-stump management system due to the restriction of the root system affects the production of mini-cuttings and the quality of clonal seedlings.Results: It was not necessary for more than 30 days in a mist chamber to induce rooting. The highest percentage of rooting was obtained 50 days after staking. Mini-gardens set up in suspended seedbed and tubes (280 cm 3 ) had the average mini-cuttings productivity of 4.32 and 2.06, respectively, over 270 days of exploration (monthly collections). At 120 days after staking, there was no difference in the survival and in the final quality of clonal seedlings produced. However, clonal seedlings from minigarden in tubes had higher height, leaf area, and number of first-order roots. Regardless of the minigarden management, the clonal seedling production index was 50%. Conclusion:We can conclude that P. reticulata seedling production via mini-cutting technique is possible.

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“…It is also observed that the number of roots was significantly influenced by different IBA concentrations. The application of IBA aiming clonal propagation of Hymenaea courbaril L. (Moura et al, 2019) and the conifer Araucaria angustifolia (de Almeida Maggioni et al, 2019), also did not provide promising results. Going further, mini-cuttings had greater use of treatments with IBA compared to cuttings from clonal plants, which in this way are more affected towards aging (Figure 1).…”

Section: Evaluation Of Cutting and Mini-cutting Variablesmentioning

confidence: 99%

Indolbutyric Acid (IBA) in the african mahogany (Khaya grandifoliola C. DC.) cuttings and mini-cuttings development

et al. 2020

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The current expansion of the forest sector in the Cerrado (Brazilian Savannah), especially of the species of genus Khaya sp. (African Mahogany), requires several silvicultural and technical studies of various natures. Seed and clonal propagation enable noble and vigorous seedlings, which will future compose commercial plantations aiming timber production. The species Khaya grandifoliola C. DC is considered of distinct wood characteristics and with great economic potential. The objective of this work was to evaluate the effect of different indolbultyric acid (IBA) concentrations – between 0 and 12 g.L-1– on the rooting of K. grandifoliola cuttings and mini-cuttings. The experiment was carried out at the "Mudas Nobres" private nursery, located in Goiânia (Goiás State, Brazil). The experiment was conducted in a completely randomized design in a 5 × 2 factorial scheme. Each treatment consisted of four replications with 20 cuttings (clonal origin) or mini-cuttings (seed origin) per repetition. Models were also applied to estimate the number of shoots in clonal cuttings, according to the data observed in seed mini-cuttings. The results indicate that IBA has the opposite effect on the two evaluated types of propagule origin, being more suitable for seed mini-cuttings (should apply 8 g.L-1of IBA) and less for clonal cuttings (should not apply IBA). If a standard application must be recommended (to cuttings either mini-cuttings), the most appropriate concentration is 6 g.L-1of IBA.

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Ácido indolbutírico (AIB) e substratos na propagação vegetativa de Jatobá (Hymenaea courbaril L.) por miniestaquia

Cited by 6 publications

References 20 publications

Substrates based on swine wastewater in the production of seedlings of Guazuma ulmifolia (Malvaceae)

Substrates based on swine wastewater in the production of seedlings of Guazuma ulmifolia (Malvaceae)

Mini-cutting of Plathymenia reticulata benth. with ministumps conducted in suspended seedbed and tubes

Indolbutyric Acid (IBA) in the african mahogany (Khaya grandifoliola C. DC.) cuttings and mini-cuttings development

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