Fenologia E Crescimento Do Pinhão-Manso Cultivado Na Zona Da Mata Do Estado De Alagoas, Brasil

Santos, Claudiana Moura dos; Endres, Laurício; Filho, Humberto Cristiano de Lins Wanderley; Rolim, Eduardo Vicente; Ferreira, Vilma Marques

doi:10.5380/rsa.v11i3.17500

Cited by 10 publications

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“…This phase occurs soon after flowering and is characterized by intense cellular division, and during this process, increases in fruit size and dry mass can be observed as shown in Figure 2, the dry-mass gain and increase in fruit diameter were linear and significant. In the cellular elongation phase, which according to Santos et al (2010) generally occurs between 8 and 40 DAA, we observed the same tendency in both dry mass gain and increase in diameter as observed in Source: Elaboration of the authors.…”

Section: Resultssupporting

confidence: 83%

“…In the cellular elongation phase, which according to Santos et al (2010) generally occurs between 8 and 40 DAA, we observed the same tendency in both dry mass gain and increase in diameter as observed in the first phase of fruit growth. The increase in the accumulation of dry mass in the elongation phase is mainly associated to the rapid expansion and elongation of cells, with deposition of wall material (MARSCHNER, 2002); during this process the water flow to the fruits is essential (MARENCO and LOPES, 2005).…”

Section: Resultssupporting

confidence: 82%

“…In the first 27 DAA, we observed a slow accumulation of these nutrients in fruit tissues of this oleaginous plant ( Figures 4A, 4B, 4C, and 4F). This phase is characterized by an intense cellular division and elongation process in these tissues (MOURA et al, 2003;SANTOS et al, 2010). After this phase, a marked rise in the requirement of these nutrients by fruits was observed until its complete maturation, which The accumulation of macro-and micronutrients (N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn) in the physic nut fruits was relatively low in the first phase of growth until 27 DAA, increasing considerably with the fruit growth until maturation (Figures 4 and 5).…”

Section: Resultsmentioning

confidence: 99%

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Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

et al. 2014

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There is little information on the nutritional management of physic nut (Jatropha curcas L.). This study aimed to measure the nutrients accumulation during the growth of fruits in physic nut and the nutrients export from the area due to seed harvest and hull removal. Fruits were harvested at different times (11, 19, 27, 35, 43, 51, and 59 days after anthesis), in a completely randomized design with four replications. Nutrient content was measured in the whole fruit and in the hull and seed separately. Nutrients accumulate in the fruit during its growth. Nitrogen is the nutrient accumulated in the greatest amount, followed by potassium, calcium, phosphorus, magnesium, and sulfur. For the micronutrients, their content decreased in order of: zinc, manganese, copper, and iron. There was a high demand for Ca, Mg, Cu, Zn, and Mn in the early fruit development. The physic nut fruit requires significant amounts of micronutrients for normal fruit growth. Potassium is the nutrient exported in the greatest amount through a hull. Key words: Jatropha curcas, export by harvest, mineral nutrition ResumoHá pouco conhecimento sobre o manejo nutricional de pinhão-manso (Jatropha curcas L.). Objetivouse com este trabalho medir o acúmulo de nutrientes ao longo do crescimento de frutos de pinhão-manso e a exportação de nutrientes da área devido à colheita de sementes e remoção das cascas. Frutos foram colhidos em diferentes momentos (11, 19, 27, 35, 43, 51 e 59 dias após a antese) em delineamento inteiramente casualizado com quatro repetições. Para o estudo de exportação de nutrientes, o teor de nutrientes foi medido tanto nos frutos inteiros como na casca e semente separadamente. Os nutrientes se acumulam nos frutos ao longo do crescimento. O Nitrogênio é o nutriente acumulado em maior quantidade, seguido pelo Potássio, Cálcio, Fósforo, Magnésio e Enxofre. Dentre os micronutrientes, a quantidade acumulada nos frutos teve a seguinte ordem decrescente: Zinco, Manganês, Cobre e Ferro. No início do crescimento, houve grande demanda por Ca, Mg, Cu, Zn e Mn. O pinhão-manso demanda quantidades expressivas de micronutrientes durante a formação dos frutos. Potássio é o nutriente exportado em maior quantidade pela casca do fruto. Palavras-chave: Jatropha curcas, exportação pela colheita, nutrição mineral

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Section: Resultssupporting

confidence: 83%

Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

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Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

et al. 2014

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“…Para Santos et al (2010), as principais fenofases observadas em estudos fenológicos são a abscisão foliar, formação de folhas novas, floração e frutificação. O número de flores femininas e sua fecundação determinam quantos frutos e sementes serão desenvolvidas.…”

Section: Introductionunclassified

Fenologia e produção do pinhão-manso cultivado com diferentes fontes de adubação

Fernandes¹,

Chaves²,

Dantas³

et al. 2013

Rev. Ciênc. Agron.

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RESUMO -Objetivou-se com este trabalho descrever os períodos de formação de folhas novas, abscisão foliar, inflorescência e maturação dos frutos do pinhão-manso, Jatropha curcas L., bem como, determinar algumas variáveis de produção desta espécie em dois ciclos de cultivo adubada com diferentes fontes de adubação no município de Remígio-PB. Utilizou-se o delineamento em blocos casualizados com cinco tratamentos e quatro repetições. Os tratamentos foram constituídos por diferentes fontes de adubação. Durante os meses de maio de 2007 a novembro de 2009 fez-se avaliações mensais dos eventos fenológicos e de produção do pinhão-manso. Independente do tratamento utilizado, a formação de folhas novas foi observada durante o período chuvoso e a abscisão foliar durante os meses mais frios e os de maior estiagem. A floração, no primeiro ciclo de cultivo, iniciou-se com o fim da estação chuvosa com a utilização do composto orgânico II (F3), já no segundo ciclo, as primeiras inflorescências foram observadas no início da estação chuvosa nas plantas adubadas com composto orgânico I (F2) e esterco de curral (F5). Em todos os tratamentos o tempo verificado entre a emissão das inflorescências até a maturação fisiológicas dos frutos foi de aproximadamente 120 dias. Na primeira colheita, as fontes de adubação não diferiram entre si em nenhuma variável de produção, entretanto, na segunda colheita, além de haver um aumento na produção, o composto orgânico I (F2) e o esterco de curral (F5) foram os que promoveram os melhores resultados.Palavras-chave: Pinhão-manso. Fenologia vegetal. Floração. ABSTRACT -The objective of this work was to describe the periods of new-leaf formation, leaf abscission, the flowering and fuit-maturity of jatropha, Jatropha curcas L., as well as to determine some production variables of this species, in two crop cycles, fertilized with different sources of nutrient, in the municipality of Remígio, in the state of Paraíba. A randomized block design with five treatments and four replications was used. The treatments consisted of different sources of fertilization. During the months of May, 2007 to November, 2009 monthly evaluations of phenological events and the production of jatropha were made. Regardless of the treatment used, formation of new leaves was observed during the rainy season, and leaf abscission during both the colder and dryer months. Flowering in the first crop cycle began with the end of the rainy season, when using the organic compound II (F3), whereas in the second cycle, the first instances of inflorescence were observed at the start of the rainy season in those plants fertilized with the organic compound I (F2) and manure (F5). In all treatments the time verified between the instances of inflorescence and the physiological maturity of the fruit was approximately 120 days. For the first harvest, the sources of fertilizer did not produce any differences for any of the production variables, however, for the second harvest, besides there being an increase in production, the organic compound I ...

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“…4 Além de promover um melhor aproveitamento dos frutos colhidos, a utilização dos resíduos do processamento das sementes para obtenção do óleo, como a torta e o epicarpo, possibilita uma alternativa para compensar a falta de produção nos meses em que a cultura ainda não formou os frutos, período que compreende os meses de setembro a dezembro. 10 Os resíduos, ou subprodutos, atuariam como um complemento da renda para os produtores e também contribuiriam para que existisse uma regularidade na disponibilidade de produtos oriundos do pinhão manso, seja o biocombustível líquido, ou combustível sólido para queima.…”

Section: Introductionunclassified

Chemical and Energetic Characterization of Residual Epicarp of Jatropha (Jatropha curcas L.) and produced briquette

et al. 2017

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Among the oleaginous plants, Jatropha curcas is a species with considerable potential energy for use as biodiesel. The waste disposal parts of the fruit, after the oil extraction, as well as its epicarp are considered energy loss. Under the conditions presented, this study was aimed to accomplish the energy characterization of the remaining epicarp achieved by the processing of the Jatropha fruit, along with briquetes. It was attested through the proximate analysis of materials and particle size distribution, heating value determination, briquettes production and mechanical testing. The treatments consisted of briquettes with different amounts of particle materials of Jatropha and Pine Wood. The resulting values of chemical analysis, as well as ash content (7.71%), fixed carbon content (26.73%), volatile matter (65.56%) and high heating value (HHV) (4079,24 kcal.kg -1), indicate the quality of the epicarp for energy use. The ash content values were relatively low when compared to other residual materials. The addition of pine wood to Jatropha briquette represented an improvement of the mechanical characteristics in all of the tested proportions. However, all the treatments results in low values of resistance.

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Fenologia E Crescimento Do Pinhão-Manso Cultivado Na Zona Da Mata Do Estado De Alagoas, Brasil

Cited by 10 publications

References 9 publications

Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

Fenologia e produção do pinhão-manso cultivado com diferentes fontes de adubação

Chemical and Energetic Characterization of Residual Epicarp of Jatropha (Jatropha curcas L.) and produced briquette

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