Storage on the vigor and viability of macauba seeds from two provenances of Minas Gerais State

Souza, Patrícia Pereira de; Motoike, Sérgio Yoshimitsu; Carvalho, Mychelle; Kuki, Kacilda Naomi; Borges, Eduardo Euclydes de Lima e; Silva, Antônio Marcos

doi:10.1590/0103-8478cr20150848

Cited by 12 publications

(10 citation statements)

References 10 publications

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“…The seeds in the "zero" period presented higher moisture content (mean = 18%) compared with those stored for 12 months (mean = 15.12%) and 18 months (mean = 14.69%; Figure 1A; Table 1). This relation is norm al in freshly collected seeds that have not yet undergone dehydration processes promoted by storage time (Souza et al, 2016). However, the decrease in moisture during the storage periods did not reduce the seed viability because this class of orthodox seeds supports dehydration until the moisture content reaches 2-5% (Roberts 1973).…”

Section: Resultsmentioning

confidence: 98%

Methods for overcoming dormancy and seed storage of <i>Enterolobium contortisiliquum

2019

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The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical and physiological quality of seeds, respectively. Variations in moisture content and electrical conductivity during storage did not have effect on the percentage of germination. EI treatment was more efficient for overcoming dormancy than the ES was, regardless of storage time. IM and TE treatments did not lead to germination. EI was the most efficient treatment for decreasing the TME. The results indicate that alternative and low-cost methods are efficient at overcoming exogenous dormancy and thus can be used to optimize the process of seedling production.

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Section: Resultsmentioning

confidence: 98%

Methods for overcoming dormancy and seed storage of <i>Enterolobium contortisiliquum

2019

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“…Variations in the moisture content could be due to the climatic conditions and development of the crop, as well as the harvest time of the fruits. Nevertheless, the results obtained for the castorbean seeds show a low content of humidity (<6%), characteristic that makes them less susceptible to deterioration processes by microorganisms actions, being able to be stored and conserved during a determined time without affecting its viability (Souza et al, 2016).…”

Section: Viscosidadmentioning

confidence: 96%

“…Variaciones en el contenido de humedad podrían obedecer a condiciones climáticas, desarrollo del cultivo y el tiempo de cosecha de frutos. Sin embargo, los resultados obtenidos para las semillas de higuerilla muestran bajo contenido de humedad (< 6%), característica que las hace menos susceptibles a procesos de deterioro por acciones de microorganismos, pudiendo ser almacenadas y conservadas durante un tiempo determinado sin afectar su viabilidad (Souza et al, 2016).…”

Section: Humedadunclassified

Relación entre la composición química de la semilla y la calidad de aceite de doce accesiones de Ricinus communis L.

Leal

Ríos

Méndez-Gallegos

et al. 2017

Remexca

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ResumenLa higuerilla (Ricinus communis L.) es una planta que ha generado gran interés a nivel mundial debido al contenido de aceite extraído de la semilla, éste puede ser utilizado en la producción de biocombustibles, productos farmacéuticos y cosmetológicos, entre otros. No obstante, en México pocos estudios describen las características químicas de la semilla y su aceite. El objetivo de este trabajo, fue determinar la composición químico proximal y la calidad del aceite de doce accesiones de R. communis provenientes de los estados de Aguascalientes, Jalisco, San Luis Potosí y Zacatecas, colectados en el año 2013. Se realizó análisis químico proximal siguiendo las técnicas recomendadas por la AOAC (2002) y se determinó la calidad del aceite mediante parámetros como: viscosidad, densidad, índice de acidez (IA) y porcentaje de ácidos grasos libres (%AGL). Los datos obtenidos evidenciaron que existe diferencia significativa (p< 0.05), en la composición química y calidad de aceite, excepto densidad para las accesiones evaluadas. SLPS11C1 presentó mayor contenido de aceite (51.04 ±0.44%) y proteína (16.02 ±0.36%), mientras JAL3C1 AbstractCastorbean (Ricinus communis L.) is a plant that has generated great interest worldwide due to the oil content extracted from the seed, it can be used in biofuel production, pharmaceutical and cosmetic products, among others. However, in México few studies describe the chemical characteristics of the seed and its oil. The aim of this paper was to determine the proximal chemical composition and oil quality of twelve accessions of R. communis from the states of Aguascalientes, Jalisco, San Luis Potosí and Zacatecas, collected in 2013. A proximal chemical analysis was performed following the techniques recommended by the AOAC (2002) and the quality of the oil was determined by parameters such as viscosity, density, acidity index (IA) and percentage of free fatty acids (%AGL). The data obtained showed that there is significant difference (p< 0.05), in the chemical composition and oil quality, except for the accessions density. SLPS11C1 showed higher oil content (51.04 ±0.44%) and protein (16.02 ±0.36%), while JAL3C1 had a higher crude fiber average (21.15 ±0.16%). AGSS2C1 showed higher viscosity (265.84 ±2.54 mm² s -1 ) ) y (%) AGL (0.0272 ±0.0008%). Los resultados sugieren que SLPS11C1 y AGSS2C1 son accesiones útiles para la producción agroindustrial. Sin embargo, se debe tener en cuenta que factores fenológicos pueden afectar la composición química de la semilla y la calidad del aceite de manera independiente al lugar de procedencia.Palabras clave: Ricinus communis L., accesiones, análisis químico proximal, calidad del aceite, higuerilla. IntroducciónLa 'higuerilla' (Ricinus communis L.), pertenece al orden de las Euphorbiales y a la familia de la Euphorbiaceae (Cronquist, 1981), esta especie oleaginosa se encuentra ampliamente distribuida en México, y posee alto potencial de producción de semilla para la obtención de aceite (Martínez et al., 2012; Solís-Bonilla et al., 2016). A nivel...

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“…Knowledge of the main seed characteristics regarding the manner of storage is fundamental for conservation, and moisture content, temperature, and relative humidity are the main factors (Toledo et al, 2013;Umarani et al, 2015;Rocha et al, 2017;Venial et al, 2017;Silva et al, 2018). Knowledge of these factors that affect seed quality can make longer storage periods possible, allowing seeds to be used for sowing at different times of the year (Tombolato et al, 2009;Silva et al, 2015;Souza et al, 2016;Rocha et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

Silva

Toledo²,

Teixeira

et al. 2019

J. Seed Sci.

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Millet is a species of the grass family used in cattle pastures, for hay, for silage, and in soil cover in no-tillage systems. However, studies on seed production and post-harvest techniques for this species have not been sufficiently developed, considering the demand for and potential of this crop. The objective of this study was to monitor the physiological quality of millet seeds stored in porous packaging. Millet seeds were stored under four ambient conditions (natural laboratory environment, dry chamber, refrigerator, and freezer). Physiological quality was evaluated by germination and vigor tests before and during storage each year, up to six years for the dry chamber and natural laboratory environment, and up to 12 years for the refrigerator and freezer. Analysis of variance was conducted on the data, which were in 4 × 6 and 2 × 12 (environment and storage period) factorial arrangements. The means of the environments were compared by the Tukey test (p ≤ 0.05) and the storage periods by regression analysis. The germination capacity of millet seeds is best conserved in a refrigerator and freezer, and they remain viable for up to twelve years of storage under these conditions.

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Storage on the vigor and viability of macauba seeds from two provenances of Minas Gerais State

Abstract: Macauba palm stands out for having favorable features to biodiesel production such as the high oil content of its fruit. Considering the great potential of the species and their applicability in the renewable energy field, it becomes indispensable

Cited by 12 publications

References 10 publications

Methods for overcoming dormancy and seed storage of <i>Enterolobium contortisiliquum

Methods for overcoming dormancy and seed storage of <i>Enterolobium contortisiliquum

Relación entre la composición química de la semilla y la calidad de aceite de doce accesiones de Ricinus communis L.

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

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