scholarly journals Physiological changes in Jatropha curcas L. seeds during storage

2016 ◽  
Vol 38 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Denise Cunha Fernandes dos Santos Dias ◽  
Glauter Lima Oliveira ◽  
Guilherme Gama Vallory ◽  
Laércio Junio da Silva ◽  
Marcos Morais Soares
Keyword(s):  
Jatropha Curcas ◽  
Suitable Condition ◽  
Physiological Changes ◽  
Oil Seeds ◽  
Plastic Bags ◽  
Different Types ◽  
Plastic Bag ◽  
Physiological Quality ◽  
Cold Chamber

Abstract: Oil seeds, such as J. curcas, are more prone to deterioration and consequently to loss of quality during storage. In this context, adequate technics for its preservation are of great importance. This study aimed to evaluate the effects of different environments and packaging for the conservation of J. curcas seeds during twelve months of storage. The seeds were placed in three different types of packaging: a multiwall paper bag (or Kraft paper bag); a cloth bag; and a high-density plastic bag. After this, the seeds were stored in three different conditions: a laboratory (23 ± 3 ºC; 64 ± 11% of RH); a refrigerated room (20 ± 2 oC; 55 ± 5% of RH) and a cold chamber (10 ± 2 oC; 55 ± 5% of RH). Initially and thereafter every three months, the physiological qualities (germination and vigor) of the seeds were evaluated. J. curcas seeds packed in the plastic bags and stored in a cold chamber maintained their germination potential during twelve months. There was a decline in the physiological quality of the seeds stored in the laboratory conditions, independent of the packaging used. It was concluded that the most suitable condition for the storage of J. curcas seeds was packing them in plastic bags, placed in a cold chamber (10 ± 2 oC; 55 ± 5% of RH).

scholarly journals Substrates for germination and physiological quality of storage seeds of Parapiptadenia rigida (Benth.) Brenan

2013 ◽  
Vol 35 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Ezequiel Gasparin ◽  
Maristela Machado Araujo ◽  
Caira Vinãs Tolfo ◽  
Douglas Rodrigo Becker Foltz ◽  
Paulo Roberto Magistrali
Keyword(s):  
Forest Restoration ◽  
Storage Condition ◽  
Germination Test ◽  
Seed Technology ◽  
Different Types ◽  
Randomized Experimental Design ◽  
Physiological Quality ◽  
Cold Chamber ◽  
Plot Design

"Angico-vermelho" [Parapiptadenia rigida (Benth.) Brenan] is an arboreal forestal species native from Brazil used for rural constructions, firewood, charcoal, and forest restoration programs; however it is little studied in regard to seed technology. Thus, the objective of this study was assessing different substrates for conducting tests of germination and physiological quality of seeds stored under different environments and packings for 420 days. Firstly, the most suitable substrate for the germination test was identified and subsequently the seeds were stored into three different types of packings (paper, plastic and glass) and three different environmental conditions (cold chamber, refrigerator and laboratory). Seed samples from each storage condition were removed at every 60 days for evaluating moisture content, germination and vigor (electrical conductivity test). A completely randomized experimental design was used with treatments arranged into a split-plot design for storage periods. It was found that the germination test can be conducted using between the sand as substrate, with the first count of emergence of seedlings performed at the fourth day and the final counting at 10 days after seeding. That seeds can be stored preferably in refrigerator into paper packings, although packings of plastic and/or glass are also suitable.

scholarly journals Physiological quality of Gliricidia sepium (Jacq.) Steud. (Leguminosae - Papilionoideae) seeds subjected to different storage conditions

2012 ◽  
Vol 36 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Renata Conduru Ribeiro Reis ◽  
Claudinéia Regina Pelacani ◽  
Cimille Gabrielle Cardoso Antunes ◽  
Bárbara França Dantas ◽  
Renato Delmondez de Castro
Keyword(s):  
Water Content ◽  
Seed Viability ◽  
Gliricidia Sepium ◽  
Storage Conditions ◽  
Physiological Processes ◽  
Plastic Bags ◽  
Starting Point ◽  
Cultivated Plant ◽  
Physiological Quality

Studies of seed physiological processes represent the starting point for the sustainable utilization of native or cultivated plant species from the caatinga biome for which germination studies are still scarce. In order to determine adequate methods for the conservation of Gliricidia sepium seeds, the physiological quality of propagules exposed to different conditions and times of storage were examined. Recently collected seeds of G. sepium were analyzed immediately, while the other sample was stored for three, six, nine, or twelve months in plastic or paper bags under refrigeration or at room temperature for further analysis. The germination rates of seeds from each storage regime were determined and these rates compared to their water content. It was observed that germination capacity was directly related to changes in seed humidity. Storing seeds in plastic bags yielded the best conservation, mainly when they were stored at low temperatures. However, even at temperatures near 25°C it was possible to prolong seed viability when their water content was controlled through the use of impermeable packing.

scholarly journals Ham salting in plástic bags: A way to reduce salt use?

2018 ◽  
Vol 36 (2) ◽  
pp. 166-173
Author(s):  
Joel Girón ◽  
Raúl Grau ◽  
José Manuel Barat
Keyword(s):  
Sensory Analysis ◽  
Total Mass ◽  
Salt Content ◽  
Physicochemical Characteristics ◽  
Sensory Assessment ◽  
Salt Reduction ◽  
Plastic Bags ◽  
Dry Cured Ham ◽  
Plastic Bag

The objective of this work was to study salt reduction in the processing and final product of Iberian dry-cured ham manufacturing. For this purpose, high-barrier plastic bags were used in the salting stage, with salt doses of 2.5 and 3.2% at 10 and 15 d. The following aspects were evaluated: the production and salt content of brine, the analytical determinations of the hams after the salting stage, the changes in the total mass of the hams during processing and the analytical and sensory assessment of the dry-cured product. The experiment results showed that the plastic bag salting minimized the production of brine by 61 and 63% and reduced the salt content in the final product without altering the physicochemical characteristics or the hygienic quality of the dry-cured ham. In the sensory analysis, the samples salted with 2.5% doses were preferred by consumers.

scholarly journals SPATIAL DISTRIBUTION OF PHYSIOLOGICAL QUALITY OF Joannesia princeps Vell. SEEDS1

2018 ◽  
Vol 41 (4) ◽  
Author(s):  
Rômulo André Beltrame ◽  
José Carlos Lopes ◽  
Julião Soares de Souza Lima ◽  
Vagner Mauri Quinto
Keyword(s):  
Spatial Distribution ◽  
Root System ◽  
Spatial Dependence ◽  
Aerial Part ◽  
Dry Mass ◽  
Fresh Mass ◽  
Plastic Bags ◽  
Mother Plants ◽  
Physiological Quality

ABSTRACT The objective of this study was to analyze the spatial distribution of the attributes that determine the physiological quality of Joannesia princeps seeds. Seeds were collected, individually from, 40 mother plants in the Horto Florestal Municipal Laerth Paiva Gama, in Alegre-ES, which constituted the georeferenced sampling mesh. For germination, the seeds tegument was cracked and was held the imbibition in gibberellic acid GA3 500 mg L-1 for 24 h in environmental chamber with temperature adjusted to 30 ºC. The seeds were sown in plastic bags of ± 600 cm3 containing soil+sand+manure in the proportion of 1:1:1. On the 65th day after sowing, the following variables were analised: emergence (E), emergence speed index (IVE), root length (CR), diameter of base (DC), shoot length of the aerial part (CPA), fresh mass of the root system (MFSR), fresh mass of the aerial part (MFPA), dry mass of the root system (MSSR) and dry mass of the aerial part (MSPA). Data were subjected to descriptive statistics, geostatistics and kriging. With the exception of CPA and MFSR, it was found spatial dependence for the other studied variables: E, IVE, CR, DC, MFPA, MSSR e MSPA; varying of 14,0 a 47,5 m, so that the lowest range for the CR and longer range and degree of spatial dependence for the IVE. The analysis of the spatial distribution of the physiological quality of seeds of J. princeps can be used as a tool to define the sampling region of seeds with high and low vigor.

scholarly journals Drying and storage of Eugenia involucrata DC. seeds

2003 ◽  
Vol 60 (3) ◽  
pp. 471-475 ◽  
Author(s):  
Angela Maria Maluf ◽  
Denise Augusta Camargo Bilia ◽  
Claudio José Barbedo
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Cold Storage ◽  
Native Species ◽  
Plastic Bags ◽  
Physiological Quality ◽  
Drying Rates ◽  
And Storage ◽  
Water Contents

The physiological quality of seeds of native species is important to produce healthy saplings and therefore guarantee the success of programs to recover disturbed vegetation. This reinforces the necessity for investigating the physiological quality of those seeds. To evaluate the effects of different drying rates on the germination, moisture content and storability of Eugenia involucrata diaspores, mature fruits collected at Mogi Guaçu, SP, Brazil had their epi- and mesocarps removed by washing and were dried at 30, 40 or 50ºC until their water content was reduced from 57% (fresh diaspores) to 13% (final drying), totaling six drying levels. In a second experiment, diaspores had their moisture content reduced from 57% to 49%, at 30ºC, totaling six drying levels (0h, 1h, 2h, 3h, 4h and 5h), and were kept for 180 days in plastic bags under cold storage. The drying rate had no effect on tolerance to desiccation by E. involucrata diaspores; water contents lower than 51% decreased both germinability and storability. Diaspores can be stored for up to 180 days as long as their water content is reduced to 53% and they are kept inside plastic bags under cold storage.

scholarly journals Evaluation of the physiological quality of anadenenthera peregrina (L.) Speg. seeds during storage

2009 ◽  
Vol 33 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Daniel Santos Pinho ◽  
Eduardo Euclydes de Lima e Borges ◽  
Viviana Borges Corte ◽  
Luiz Carlos Bhering Nasser
Keyword(s):  
Electrical Conductivity ◽  
Storage Temperature ◽  
Storage Period ◽  
Seed Priming ◽  
Seed Moisture ◽  
Physiological Quality ◽  
Viable Seeds ◽  
Cold Chamber ◽  
Constant Percentage

The aim of this experiment was to evaluate the effect of storage temperature on the viability and vigour of A. peregrina seeds. Seeds of A. peregrina harvested in Viçosa-MG, in September 2005 were used. The seeds were stored in the Laboratory of Forest Seeds Analysis (LASF) of the Universidade Federal de Viçosa (UFV), in a cold chamber, under approximately 5ºC over150 days. The seeds were stored under 20ºC for 150 days more. Seed moisture was determined after oven-drying at 105 ± 3ºC for 24 hours. The seeds were analyzed monthly using germination, tetrazolium and electrical conductivity tests and Osmopriming during 300 days, with four repetitions of 25 seeds. A. peregrina seeds kept a constant percentage of germination and viable seeds under the tetrazolium test for five months of storage, under either 5ºC and 20ºC. The electrical conductivity test showed significant differences in relation to the storage period, proving to be more sensitive than the standard germination test. Seed priming in PEG -0,4 MPa solution was not efficient in recovering the viability and vigor of the stored seeds at 5ºC and 20ºC.

scholarly journals Improving Product Quality With Production Quality Control

2021 ◽  
Vol 4 (2) ◽  
pp. 41-50
Author(s):  
Suhadak ◽  
Tedjo Sukmono
Keyword(s):  
Six Sigma ◽  
Causative Factor ◽  
Production Quality ◽  
Process Data ◽  
Production Quality Control ◽  
Plastic Bags ◽  
Plastic Bag ◽  
X 24 ◽  
A Company

PT. Z is a company engaged in the plastic bag industry. The company produces plastic bags, one of which is a type of ATP 12 x 24 that is often used as plastic wrapping meatballs, sugar and others. A company is certainly required to provide the best quality on its products. To meet the needs and expectations of consumers for the quality of products, the company must improve the quality of existing products. Six sigma is a quality tool that can be used to analyze and process data to maintain or improve the quality of a product based on the process. One of the shorts used in the six sigma method is Define, Measure, Analyze, Improve and Control ( DMAIC). This research focuses on the results of product defects produced for 5 months in 2019. Because of the process analyzed there is data of proportions that are out of control in july and november. So that the data is omitted so that the data can be controlled. The sigma production level of ATP 12 x 24 is currently at the level of 4 sigma so it is necessary to improve to reach the level of 6 sigma. Pareto diagrams and fishbone diagrams can be used as tools to analyze significant factors causing product defects. And it can be known that the causative factor that can be done repair is deflated.

scholarly journals Physical and physiological quality of Jatropha curcas L. seeds at different maturity stages using image analysis

2020 ◽  
Vol 18 (3) ◽  
pp. e0206
Author(s):  
Daniel T. Pinheiro ◽  
André D. Medeiros ◽  
Manuel J. Zavala-León ◽  
Denise C. F. S. Dias ◽  
Laércio J. Da Silva
Keyword(s):  
Image Analysis ◽  
Jatropha Curcas ◽  
Physical Characteristics ◽  
Radiographic Images ◽  
Seed Filling ◽  
X Ray ◽  
Tissue Integrity ◽  
Maturity Stages ◽  
Physiological Quality

Aim of study: To assess the potential of automated X-ray image analysis to evaluate the physical characteristics of Jatropha curcas seeds, and to relate the parameters obtained with the physiological quality of the seeds harvested at different maturity stages.Area of study: Experimental area of Agronomy Department, Federal University of Viçosa (UFV), Brazil.Material and methods: The fruits were harvested from 20 plants, based on the external skin color (green, yellow, brownish-yellow and brown). The study was performed by automated and visual analysis of radiographic images of the seeds, in which measurements of tissue integrity, density and seed filling were performed. Seed dry matter, germination and seedling growth were also analysed.Main results: Variables obtained through automated analysis of radiographic images correlated significantly with all physiological variables (r > 0.9), as well as visual image evaluations (r > 0.75). The seeds extracted from green fruits presented lower tissue integrity and lower physiological quality. Radiographic analysis was efficient for monitoring J. curcas seed quality at different maturity stages. Morpho-anatomical parameters obtained from X-ray analysis were highly correlated with seed physiological attributes.Research highlights: It is important to develop and improve methodologies based on lower-cost techniques, such as X-ray analysis. In this context, we verified that X-ray images can be used for monitoring J. curcas seed filling and maturation. Radiographic images of seeds can be analyzed automatically with ImageJ software. Internal morphology and physical characteristics of seeds have relationship with their physiological quality.

scholarly journals Germination and vigor of stored Jatropha (Jatropha curcars L.) seeds

2018 ◽  
Vol 40 (1) ◽  
pp. 52-59
Author(s):  
Solange Carvalho Barrios Roveri Jose ◽  
Antonieta Nassif Salomão ◽  
Luis Alberto Martins Palhares de Melo ◽  
Izulmé Rita Imaculada Santos ◽  
Bruno Galvêas Laviola
Keyword(s):  
Seed Germination ◽  
Moisture Content ◽  
Initial Moisture Content ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Plastic Bag ◽  
Physiological Quality ◽  
Jatropha Seeds ◽  
Seed Water Content

Abstract: Jatropha seeds are classified as orthodox. However, since it is an oil seed species, adequate storage conditions are required to ensure their longevity. The objective of this work was to evaluate the physiological quality of jatropha seeds stored in different environments and packaging, for periods of 3, 9 and 15 months. Three types of seed packaging bags (high density plastic bag, aluminized envelope and multiwall paper bag) were used, and the storage environments were cold and dry chamber (20 °C and 15% RH, constant), refrigerator (7 ± 3 °C, 48 ± 8% RH) and laboratory conditions (25 ± 3 °C, 51 ± 7% RH). The initial moisture content and seed germination were 7.1% and 89%, respectively. During storage, the physiological quality (germination and vigor) and moisture content of the seeds were evaluated. Seed water content ranged from 3.3 to 7.7%, depending on the permeability of the packaging and the storage environment. The highest longevity (15 months) without loss of viability was observed for jatropha seeds with initial moisture of 7.1%, packed in semipermeable plastic. Seed vigor was maintained, regardless of the environment and the type of packaging used, for up to nine months of storage.

scholarly journals PRODUÇÃO DE MUDAS E CRESCIMENTO INICIAL EM CAMPO DE Enterolobium contortisiliquum PRODUZIDAS EM DIFERENTES RECIPIENTES

FLORESTA ◽  
2014 ◽  
Vol 45 (1) ◽  
pp. 141 ◽  
Author(s):  
Alan Henrique Marques Abreu ◽  
Paulo Sergio Santos Leles ◽  
Lucas Amaral Melo ◽  
Dereck Halley Antony Alves Ferreira ◽  
Flávio Augusto Santos Monteiro
Keyword(s):  
Initial Growth ◽  
Field Phase ◽  
Relative Growth ◽  
Plastic Bags ◽  
Plastic Bag ◽  
Survival And Growth ◽  
Planting Season

O objetivo deste trabalho foi verificar a qualidade de mudas de Enterolobium contortisiliquum produzidas em sacos plásticos de 1.248 cm³, tubetes de 280 cm³ e tubetes de 180 cm³, e posteriormente avaliar a sobrevivência e o crescimento pós-plantio. Na fase de viveiro, todos os recipientes produziram mudas de qualidade, com destaque para as produzidas nos sacos plásticos. Na fase de campo, as plantas oriundas de saco plástico e de tubete 280 cm³ apresentaram 100% de sobrevivência, enquanto as de tubete de 180 cm³ apresentaram apenas 58%. Apesar de as mudas produzidas em sacos plásticos apresentarem maiores medidas na época de plantio, constatou-se que essa diferença tende a diminuir ou desaparecer com o tempo, pois as mudas produzidas nos tubetes apresentaram maior crescimento relativo. Para produção de mudas de Enterolobium contortisiliquum, podem-se utilizar sacos plásticos com capacidade 1.248 cm³ ou tubetes de 280 cm3.Palavras-chave: Tubetes; sacos plásticos; orelha-de-negro. AbstractSeedlings production and initial growth in fields of Enterolobium contortisiliquum produced in different containers. This research aims to verify the quality of Enterolobium contortisiliquum seedlings produced in plastic bags of 1.248 cm³, tubes of 280 cm³, and tubes of 180 cm³, as well as evaluate their survival and growth after planting. In nursery stage, all containers resulted in quality seedlings, especially those produced in plastic bags. In field phase, plants from plastic bag and tubes 280 cm³ had 100% survival, while to the ones from tube of 180 cm ³ survival was only 58%. Despite seedlings produced in plastic bags present greatest measures in planting season, such difference tends to disappear in time, because the seedlings grown in tubes had higher relative growth. We recommend plastic bags of 1.248 cm³ and tubes of 280 cm³.Keywords: Tubes; plastic bags; orelha-de-negro.

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