Relationship between N, P, and K and the quality and stem structural characteristics of Caesalpinia echinata Lam. plants

Cuzzuol, Geraldo Rogério Faustini; Milanez, Camilla Rozindo Dias; Gomes, José Manoel Lúcio; Labate, Carlos Alberto; Canal, Emerson Campos

doi:10.1007/s00468-013-0894-9

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…Todavia, é importante salientar que o transporte ativo da sacarose no floema requer ATP dependente do P em sua estrutura (Marschner 2012). Dessa forma, mesmo que a adubação fosfatada tenha afetado o PI total de C. echinata em relação ao controle, esse tratamento proporcionou maior concentração da sacarose na casca do caule de C. echinata, sugerindo maior demanda de substrato para a síntese de componentes estruturais da madeira (celulose e as hemiceluloses) conforme postulado por Cuzzuol et al (2013). Isso poderia resultar em caules mais resistentes e maior sobrevivência das plantas em condições de campo primordial para o reflorestamento com arbóreas nativas tropicais.…”

Section: Discussionunclassified

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Cuzzuol

Canal

Gama

et al. 2016

Hoehnea

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-(Relationships of N, P, and K with the chlorophyll fluorescence, leaf nutrient accumulation, and soluble carbohydrate concentration in the stem of Caesalpinia echinata Lam.). The aim of this study was to evaluate the effect of N, P, and K in the accumulation of these elements in the leaf and their relations with the chlorophyll a fluorescence parameters and with the concentration of soluble carbohydrates in stems of young plants of Caesalpinia echinata. Eight-month-old plants were grown in polyethylene pots. which received N, P, and K in isolated form ((NH 4 ) 2 SO 4 , P 2 O 5 , KCl) and the combined form NPK in the ratio 10:10:10 and 04:14:08. The pots were arranged in randomized blocks. The applications were repeated each 90 days during 450 days. The results demonstrated that C. echinata is more responsive to N. Plants showed higher leaf N concentrations and positive correlation with the concentration of chlorophyll a and b. However, the treatments did not influence the potential quantum yield of PSII (FV/FM) and the performance index (PITOTAL). The concentration of sucrose in the stem bark was higher than that of secondary xylem and superior in fertilizers rich in P (P and NPK 04:14:08) suggesting increased demand of substrate for forming the wood in these treatments, which could result in more resistant stems and higher survival of the plants under field conditions. Keywords: Brazilwood, fluorescence, nutrients, soluble carbohydrates RESUMO -(Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.). Esse trabalho foi realizado com o objetivo de avaliar o efeito de suplementação de N, P e K no acúmulo foliar desses elementos e suas relações com os parâmetros da fluorescência da clorofila a e com a concentração de carboidratos solúveis em caules de plantas jovens de Caesalpinia echinata Lam. Plantas com oito meses de idade foram cultivadas em vasos que receberam N, P e K na forma isolada ((NH 4 ) 2 SO 4 , P 2 O 5 , KCl) e combinada na proporção 10:10:10 e 04:14:08, distribuídos em blocos inteiramente casualizados. As aplicações foram repetidas a cada 90 dias durante 450 dias. Os resultados demonstraram que C. echinata é mais responsiva ao N. As plantas apresentaram maiores concentrações de N foliar e correlação positiva com a concentração das clorofilas a e b. No entanto, os tratamentos não influenciaram no rendimento quântico potencial do FSII (FV/FM) e no índice de desempenho (PITOTAL). A concentração da sacarose na casca do caule foi maior do que do xilema secundário e superior nas adubações fosfatada e em NPK 04:14:08 sugerindo maior demanda de substrato para a formação da madeira nesses tratamentos, o que poderia resultar em caules mais resistentes e maior capacidade de sobrevivência das plantas em condições de campo. Palavras-chave: carboidratos solúveis, fluorescência, nutrientes, pau-brasil IntroduçãoEstudos recentes têm demonstrado que as arbóreas nativas tropicais respondem à aplicação de N, P e K ap...

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Section: Discussionunclassified

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Cuzzuol

Canal

Gama

et al. 2016

Hoehnea

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“…The soil chemical and physical characteristics are presented in Table 1. According to Cuzzuol et al (2013), the soil was not fertilized.…”

Section: Study Area and Experimental Designmentioning

confidence: 99%

Lower oxidative damage and cell wall loosening, mediated or not by auxin, as part of the tolerance mechanism of Paubrasilia echinata morphotypes in the shade and full sun

et al. 2021

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Paubrasilia echinata presents three morphotypes that differ from each other in leaf morphology (small morphotype-SM, medium morphotype-MM, and large morphotype-LM) with indications of divergence between them regarding irradiance tolerance. The present study aimed to identify possible physiological and growth patterns in P. echinata morphotypes under contrasting irradiance. The growth and photosynthesis of SM were inhibited in the full sun, and those of MM and LM, in the shade. The auxin contents of the three morphotypes increased in the full sun. However, in MM and LM, this increase was 5 times greater. The oxidative damage (hydrogen peroxide-H 2 O 2 and lipid peroxidation-MDA content) of SM were higher in the full sun and of MM and LM in the shade. The stem hemicelluloses and CO 2 assimilation decreased in shade for SM, and sun for MM and LM. The shade tolerance of SM and the full sun tolerance of MM and LM were associated with lower oxidative damage and cell wall loosening (lower hemicelluloses content) in the photo-promoted treatments. The integration of the lower oxidative damage with cell wall loosening seems to represent an essential part of the tolerance mechanism of P. echinata morphotypes in the shade and full sun.

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“…Previous studies have found that moss stoichiometry is easily in uenced by environments (Ball and Guevara, 2015;Li et al, 2019a;Li et al, 2019b), and that moss growth showed consistent Potassium (K) or N-K colimitation in peatleads (Wang et al, 2016). Potassium is an important nutrient element which can enhance plant N retention (Chiwa et al, 2019;Osaki, 1995) and in uence the plant growth and photosynthetic rate in vascular plant (Cuzzuol et al, 2013). Carbon, N and P are essential components of all organisms and soil.…”

Section: Introductionmentioning

confidence: 99%

Spatial Scale-Depended Characteristic Of Moss and Soil C, N, P and K Stoichiometry and Their Relationships In A Temperate Desert of Central Asia

Zhou

et al. 2021

Preprint

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Background and aims: Previous studies showed that moss stoichiometric characteristics were influenced by moss patch size and shrubs in desert. Study of moss stoichiometry in different spatial scales is crucial for understanding of growth and adaptation strategy of the mosses in temperate desert. Methods: In this study, the dominant moss (Syntrichia caninervis Mitt.) of biological soil crusts, and soil under the moss patches in the Gurbantunggut Desert were selected to determine their stoichiometry in different dunes and sites. Carbon (C), nitrogen (N), phosphorus (P) and potassium (K) contents of the moss and soil, and soil available nutrients were measured. Results: Moss stoichiometry and soil available nutrients were significantly influenced by changes in spatial distance scales except for moss C. The scaling exponents of moss N, P and K elements between above-ground and below-ground parts were 0.251, 0.389, 0.442, which were less than 1. The N vs. P scaling exponents were 0.71, 0.84 in above-ground and below-ground parts of moss. Moss C, P and K elements content in above-ground parts higher than that in below-ground parts. Moreover, moss N, P and K elements were influenced by MAP, longitude and soil nutrients. Conclusion: This study provided the C, N, P and K stoichiometric characteristics of desert moss and explored their relationships with environmental variables, which can help understand nutrient stoichiometry patterns and utilization strategy of N, P and K and their potential responses to global climate changes in the desert ecosystem of central Asia.

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Relationship between N, P, and K and the quality and stem structural characteristics of Caesalpinia echinata Lam. plants

Cited by 11 publications

References 27 publications

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Lower oxidative damage and cell wall loosening, mediated or not by auxin, as part of the tolerance mechanism of Paubrasilia echinata morphotypes in the shade and full sun

Spatial Scale-Depended Characteristic Of Moss and Soil C, N, P and K Stoichiometry and Their Relationships In A Temperate Desert of Central Asia

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