Transpiration and growth of young African mahogany plants subject to different water regimes

Casaroli, Derblai; Sérvulo, Ana Cláudia Oliveira; Vellame, Lucas Melo; Júnior, José Alves; Evangelista, Adão Wagner Pêgo; Mesquita, Márcio; Flores, Rilner Alves

doi:10.1007/s00484-019-01771-5

Cited by 4 publications

(4 citation statements)

References 40 publications

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“…The present study conducted acclimation protocols (HeA, HeA/HypA, NorEx) in different seasons—the summer 2017, spring 2018 and autumn 2018. Some (Ihzuka et al 1986 ; Kakitsuba et al 2011 ; van Ooijen et al 2004 ), but not all (Ciuha et al 2020 ) thermoregulatory responses can vary seasonally. Moreover, it has been shown that CIVD can vary greatly between summer and winter (Tanaka 1971 ).…”

Section: Discussionmentioning

confidence: 99%

Heat acclimation enhances the cold-induced vasodilation response

et al. 2021

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Purpose It has been reported that the cold-induced vasodilation (CIVD) response can be trained using either regular local cold stimulation or exercise training. The present study investigated whether repeated exposure to environmental stressors, known to improve aerobic performance (heat and/or hypoxia), could also provide benefit to the CIVD response. Methods Forty male participants undertook three 10-day acclimation protocols including daily exercise training: heat acclimation (HeA; daily exercise training at an ambient temperature, Ta = 35 °C), combined heat and hypoxic acclimation (HeA/HypA; daily exercise training at Ta = 35 °C, while confined to a simulated altitude of ~ 4000 m) and exercise training in normoxic thermoneutral conditions (NorEx; no environmental stressors). To observe potential effects of the local acclimation on the CIVD response, participants additionally immersed their hand in warm water (35 °C) daily during the HeA/HypA and NorEx. Before and after the acclimation protocols, participants completed hand immersions in cold water (8 °C) for 30 min, followed by 15-min recovery phases. The temperature was measured in each finger. Results Following the HeA protocol, the average temperature of all five fingers was higher during immersion (from 13.9 ± 2.4 to 15.5 ± 2.5 °C; p = 0.04) and recovery (from 22.2 ± 4.0 to 25.9 ± 4.9 °C; p = 0.02). The HeA/HypA and NorEx protocols did not enhance the CIVD response. Conclusion Whole-body heat acclimation increased the finger vasodilatory response during cold-water immersion, and enhanced the rewarming rate of the hand, thus potentially contributing to improved local cold tolerance. Daily hand immersion in warm water for 10 days during HeA/Hyp and NorEx, did not contribute to any changes in the CIVD response.

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Section: Discussionmentioning

confidence: 99%

Heat acclimation enhances the cold-induced vasodilation response

et al. 2021

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“…There was a moderate increase in the first three collection periods, followed by a significant increase (>100%) in the last evaluation, corresponding to the rainy season. These biomass dynamics are linked to precipitation since plant growth is related to the direct and indirect effects of water restriction [ 34 ]. Under low soil water availability, stomatal closure occurs.…”

Section: Discussionmentioning

confidence: 99%

“…Oliveira and Marenco [ 38 ] observed decreases in photosynthetic rates and biomass allocation in Carapa surinamensis under water stress, as well as increased growth under irrigation. Casaroli et al [ 34 ] reported decreased transpiration of African mahogany ( Khaya ivorensis A. Chev.)…”

Section: Discussionmentioning

confidence: 99%

Seasonality and Phosphate Fertilization in Carbohydrates Storage: Carapa guianensis Aubl. Seedlings Responses

Peleja

Lara

et al. 2022

Plants

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The low availability of phosphorus and water in soil can promote the remobilization of carbohydrates in the plant, releasing energy to mitigate stress. In this context, our objective was to analyze the production and allocation of carbohydrates in plants of Carapa guianensis Aubl. submitted to different doses of phosphate fertilization, during the rainy and dry seasons, in the western region of Pará. We used three phosphorus dosages (0, 50, 250 kg ha−1) as treatments. We evaluated the plants during the dry and wet seasons. We quantified dry matter production, phosphorus content, total soluble sugars, reducing sugars, sucrose, and starch. Phosphate fertilization and different evaluation periods influenced carbohydrate concentrations (p < 0.05) in plants. The highest levels of P in the leaves were registered in October and, in the roots the content decreased with the passage of time in all treatments. The control had higher dry matter production in leaves and stems. During the dry season, there was an accumulation of carbohydrates in plants and a low production of dry matter. Soluble sugars and sucrose tended to be allocated to the stem, reducing sugars to the leaves and starch to the roots, in most periods. In general, C. guianensis seedlings were not very responsive to phosphorus addition.

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“…A região possui estações secas e chuvosas bem definidas (período chuvoso de outubro a abril, e período seco de maio a setembro). O clima da região é Aw, tropical de savana, megatérmico, segundo a classificação de Köppen (CASAROLI et al 2019). A perda de água por evaporação, média anual, medida pelo tanque classe A, é da ordem de 1915 mm.…”

Section: Materials E Métodos áRea Experimentalunclassified

AVALIAÇÃO DE DIFERENTES ESPAÇAMENTOS PARA PLANTIO DE MOGNO AFRICANO (Khaya sp.)

Bahia¹,

Barreira²,

Souza³

et al. 2019

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RESUMOO estudo do desenvolvimento de um plantio florestal sob diferentes espaçamentos é de suma importância tanto para colaborar com a ciência, quanto para maximizar o rendimento do plantio. Esse trabalho teve por objetivo quantificar o desenvolvimento dendrométrico e volumétrico, de aproximadamente 400 árvores divididas em cinco espaçamentos distintos, de dimensões: 6x7m, 6x6m, 5x5m, 4x4m e 3x3m; além de fazer uma análise fitossanitária e de tortuosidade nas árvores de um experimento de aproximadamente 48 meses, instalado no município de Bonfinópolis-GO. O trabalho foi realizado entre os meses de março de 2018 e março de 2019. Em termos gerais o espaçamento 5x5m apresentou as maiores médias de DAP, altura e volume individual. Embora não houvesse diferenças significativas entre as médias de ICA para a variável diâmetro, foi possível identificar para as médias de ICA da variável altura, que todos os espaçamentos apresentaram resultados superiores ao apresentado pelo espaçamento 6x6m. O espaçamento 3x3 m apresentou maior volume por hectare, em vista da alta densidade populacional. PALAVRAS-CHAVE: Plantios Comerciais; Plantio florestal; Silvicultura. EVALUATION OF DIFFERENT SPACINGS FOR PLANTING OF AFRICAN MAHOGANY (Khaya sp.) ABSTRACTThe study of the development of a forest plantation under different spacings is of paramount importance to collaborate with science, and to maximize the yield of planting. This study aimed to quantify the dendrometric and volumetric development of approximately 400 trees divided into 5 distinct spacings, of dimensions: 6x7m, 6x6m, 5x5m, 4x4m and 3x3m; In addition to making a phytosanitary and tortuosity analysis in the trees of an experiment of approximately 48 months, installed in Bonfinópolis-GO.

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Transpiration and growth of young African mahogany plants subject to different water regimes

Cited by 4 publications

References 40 publications

Heat acclimation enhances the cold-induced vasodilation response

Heat acclimation enhances the cold-induced vasodilation response

Seasonality and Phosphate Fertilization in Carbohydrates Storage: Carapa guianensis Aubl. Seedlings Responses

AVALIAÇÃO DE DIFERENTES ESPAÇAMENTOS PARA PLANTIO DE MOGNO AFRICANO (Khaya sp.)

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