Morphophysiological responses of Hymenaea stigonocarpa Mart. ex Hayne seedlings submitted to potassium fertilization

Hymenaea stigonocarpa is anarboreal medicinal species used in the recovery of degraded areas. However, little is known about its nutritional requirements during the seedling phase, especially concerning to potassium. In this context, the aim of this study was to evaluate if potassium doses promote m...

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Published inCiência florestal Vol. 31; no. 3; pp. 1427 - 1443
Main Authors Costa, Andréia Mendes da, Carlos, Leandro, Silva, Patrícia Oliveira da, Menezes-Silva, Paulo Eduardo, Alves, José Milton, Cavalcante, Thomas Jefferson, Dias, Jorciane Souza
Format Journal Article
LanguageEnglish
Portuguese
Published Universidade Federal de Santa Maria 06.09.2021
Subjects
ECOLOGY
ENVIRONMENTAL STUDIES
FORESTRY
Growth
Fase inicial
Crescimento
Early phase
Jatobá-do-Cerrado
Physiology
K
Fisiologia
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Summary:Hymenaea stigonocarpa is anarboreal medicinal species used in the recovery of degraded areas. However, little is known about its nutritional requirements during the seedling phase, especially concerning to potassium. In this context, the aim of this study was to evaluate if potassium doses promote morphophysiological changes in Hymenaea stigonocarpa seedlings.A completely randomized design, consisting in six KCl doses (0, 50, 100, 150, 200 and 250 mg dm-3KCl) and four replications was applied. Biometric, biomass, physiological and potassium content variables were assessed. Hymenaea stigonocarpa displayed significant physiological and biometric responses to potassium fertilization, with the highest values observed at doses ranging from 150 to 200 mg dm-3 KCl. Moreover, concentration effects were noted regarding to potassium contents in seedling leaves and stems.
ISSN:0103-9954
1980-5098
1980-5098
DOI:10.5902/1980509842754