2022
DOI: 10.3390/f13060832
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Mean Leaf Angles Affect Irrigation Efficiency and Physiological Responses of Tropical Species Seedling

Abstract: In forest nurseries, irrigation management becomes more complex as different seedlings of tropical species, with different architectures, are grown close to each other. In this context, there are gaps in knowledge about the physiological responses of species with different mean leaf angles when subjected to different irrigation depths. Thus, this work aimed to analyze whether mean leaf angles affect irrigation efficiency and, consequently, physiological responses of tree seedlings. Six species with different m… Show more

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Cited by 4 publications
(3 citation statements)
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“…Irrigation water capture and its direction to the substrate is hindered by seedling species with negative mean leaf angles (−14° and −56°), their leaf area, and the spatial distribution of leaves (extended their leaves downwards of the stem) (Figure 11a,b); therefore, to achieve less negative leaf water potential and to increase the daily transpiration rate, a 14 mm irrigation volume is required to compensate for the uncaptured water. These results are in accordance with the study of [46], i.e., for species with negative mean leaf angles of −1° and −64°, the smallest irrigation volume (6 mm) reduced the leaf water potential, stomatal conductance, and daily transpiration rate. According to [47], the leaf water potential indicates whether the physiological status of seedlings has deteriorated.…”
Section: Physiological Quality Of Seedlingssupporting
confidence: 91%
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“…Irrigation water capture and its direction to the substrate is hindered by seedling species with negative mean leaf angles (−14° and −56°), their leaf area, and the spatial distribution of leaves (extended their leaves downwards of the stem) (Figure 11a,b); therefore, to achieve less negative leaf water potential and to increase the daily transpiration rate, a 14 mm irrigation volume is required to compensate for the uncaptured water. These results are in accordance with the study of [46], i.e., for species with negative mean leaf angles of −1° and −64°, the smallest irrigation volume (6 mm) reduced the leaf water potential, stomatal conductance, and daily transpiration rate. According to [47], the leaf water potential indicates whether the physiological status of seedlings has deteriorated.…”
Section: Physiological Quality Of Seedlingssupporting
confidence: 91%
“…For mean leaf angles of 57° and 31°, the daily transpiration rate increased as the irrigation volume increased from 8 mm to 10 mm, which did not differ significantly from These results are in accordance with the study of [46], i.e., for species with negative mean leaf angles of −1 • and −64 • , the smallest irrigation volume (6 mm) reduced the leaf water potential, stomatal conductance, and daily transpiration rate. According to [47], the leaf water potential indicates whether the physiological status of seedlings has deteriorated.…”
Section: Physiological Quality Of Seedlingssupporting
confidence: 89%
“…Para viabilizar a implantação desses novos conhecimentos, é necessária a continuidade de pesquisas científicas sistematizadas, bem como a criação de programas de transferência de tecnologia aos viveiros, principalmente aos menos sofisticados, com o objetivo de diagnosticar os manejos hídricos praticados, aprimorar os sistemas de irrigação e, consequentemente, aumentar a qualidade das mudas florestais e a economia de água (LOPES et al, 2005;LOPES et al, 2007;LEA-COX et al, 2010;MORAIS et al, 2012;SILVA et al, 2020;DELGADO et al, 2022).…”
Section: Desenvolvimento Manejo De Irrigação Em Viveiros Florestais: ...unclassified