Influência do ácido indolbutírico no enraizamento de miniestacas caulinar e foliar de mogno-africano (&lt;i&gt;Khaya grandifoliola&lt;/i&gt; C. DC.)

Azevedo, Maria Luiza de; Titon, Miranda; Machado, Evandro Luiz Mendonça; Júnior, Sebastião Lourenço de Assis; Freitas, Eliane Cristina Sampaio de

doi:10.5902/1980509837225

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…For EL, NR, and GY, the higher values obtained using phytohormones were probably due to the positive effects on root growth and photosynthesis. Indolebutyric acid, present at low concentrations in this biostimulant, stimulates the growth of the root system (Taiz et al, 2017;Lima et al, 2018) proven by positive results in the growth of the root system of other species, as observed in studies by Azevedo et al (2021) and Singh et al (2021). The cytokinins present in the phytohormones also act on the root development of plants by regulating cell division, increasing the size of the apical meristem of the root and playing an important role in the proliferation of the initial cells and vascularization of the root (Taiz et al, 2017).…”

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confidence: 99%

Biostimulants increase growth and yield of second-crop maize

Thomé

Lima

Oliveira

et al. 2023

Rev. bras. eng. agríc. ambient.

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The use of biostimulants in second-crop maize (Zea mays) can promote higher physiological activity in plants, resulting in higher grain yield. This study aimed to evaluate the effects of phytohormones and nicotinamide on growth and yield traits of second-crop maize. The statistical design used was a randomized block design arranged in a factorial scheme with two doses of phytohormones (0 and 500 mL ha-1) × five concentrations of nicotinamide (0, 200, 400, 600, and 800 mg L-1) with four replications. The use of biostimulants favored all variables evaluated for the maize crop. The isolated use of phytohormones and nicotinamide promoted grain yields of 6089.6 and 6242.5 kg ha-1, respectively, representing gains of 6.0 and 11.6%, respectively, compared with the control. The application of 800 mg L-1 nicotinamide resulted in the highest maize grain yield. The use of phytohormones and nicotinamide, isolated or associated, was favorable for the growth characteristics and grain yield of second-crop maize. A synergistic effect was noted between phytohormones and nicotinamide on the first ear insertion height and number of rows per ear.

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confidence: 99%

Biostimulants increase growth and yield of second-crop maize

Thomé

Lima

Oliveira

et al. 2023

Rev. bras. eng. agríc. ambient.

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“…Another important species is African mahogany, belonging to the family Meliaceae [29][30][31], which is frequently used to create products of high commercial value such as luxury furniture, naval construction, and interior finishing, among other uses [32][33][34]. In Brazil, this species was erroneously called Khaya ivorensis [35]; however, recognizing this error, researchers corrected it to reflect the proper name, Khaya grandifoliola [36]. Very commonly, however, its seeds and seedlings are still marketed as K. ivorensis, but with the continual development of research and scientific publications, it is expected that soon the correct nomenclature will be exclusively employed [37].…”

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confidence: 99%

Infrared Thermal Profiles in Silvopastoral and Full-Sun Pastures in the Eastern Amazon, Brazil

Cândido,

Guerreiro Martorano,

Cândido

et al. 2023

Forests

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There is a great need to identify interactions among silvopastoral systems and microclimatic indicators that describe the effect of trees compared to conventional pasture systems without trees. The objective of this study was to evaluate thermal conditions in a silvopastoral system and a pasture area exposed to full sunlight in the eastern Amazon, Brazil. The silvopastoral system was composed of the forest tree species Bertholletia excelsa H.B.K., Dipteryx odorata (Aubl.) Willd, and Khaya grandifoliola C.DC.. During the monitoring period, a forest inventory was carried out that included 30 trees from each species for which thermal profiles were created using a high-precision thermographic camera. Near-infrared thermography showed a positive and direct correlation with dendrometric variables. Silvopastoral systems with K. grandifoliola reduced the heat profile the most compared to conditions in a pasture fully exposed to sunlight, which demonstrates the ecosystem service provided by trees for thermal regulation in these systems. The microclimatic conditions explain the greater presence of bovines in the silvopastoral system as they were most likely in search of the thermal comfort provided by the trees during the period of the highest daytime temperatures. The silvopastoral system benefits the caloric balance and thermal comfort of pasture animals.

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Modelagem do pegamento de mudas de Khaya senegalensis A. juss produzida via assexuada

Lauro,

Lanssanova,

Rodrigues

et al. 2024

Cad. Pedagógico

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O cultivo do mogno africano (Khaya senegalensis) no Brasil é uma alternativa promissora para suprir a demanda por madeira, dadas as restrições sobre o uso de espécies de florestas nativas. Este estudo investigou a viabilidade da propagação vegetativa por miniestaquia dessa espécie, considerando diferentes reduções na área foliar e concentrações de reguladores de crescimento, como o ácido indolbutírico (AIB) e o ácido indolacético (AIA). Foi utilizado um deineamento inteiramente casualizado, constituído em esquema fatorial, avaliando-se três fatores: redução da área foliar (quatro proporções de redução); diferentes fitorreguladores (dois tipos de auxinas) e concentração dos fitorreguladores (quatro concentrações). Os resultados indicam que o uso do AIA em comparação com o AIB promoveu uma melhoria significativa na taxa de enraizamento das miniestacas. Além disso, reduções em 25%, 50% e 75% da área foliar demonstraram desempenho semelhante na promoção do enraizamento. Este estudo contribui para o conhecimento sobre a produção de mudas dessa espécie, fornecendo insights importantes para práticas mais eficazes de cultivo, com potencial para promover a expansão e sustentabilidade dessa espécie de alto valor econômico e ambiental.

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Influência do ácido indolbutírico no enraizamento de miniestacas caulinar e foliar de mogno-africano (<i>Khaya grandifoliola</i> C. DC.)

Cited by 3 publications

References 7 publications

Biostimulants increase growth and yield of second-crop maize

Biostimulants increase growth and yield of second-crop maize

Infrared Thermal Profiles in Silvopastoral and Full-Sun Pastures in the Eastern Amazon, Brazil

Modelagem do pegamento de mudas de Khaya senegalensis A. juss produzida via assexuada

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