scholarly journals Physiological potential of onion seeds stored in different packings and environments

2020 ◽  
Vol 38 (3) ◽  
pp. 312-318
Author(s):  
Nander F Hornke ◽  
Gizele I Gadotti ◽  
André F Capilheira ◽  
Jerffeson A Cavalcante ◽  
Ariele P Nadal ◽  
...  
Keyword(s):  
Natural Environment ◽  
Seed Quality ◽  
The Other ◽  
Fundamental Step ◽  
Physiological Quality ◽  
Cold Chamber

ABSTRACT Storage is a fundamental step for maintaining seed quality after processing. Thus, in this study, we evaluated the physiological potential of onion seeds stored in different packings and environments. Impermeable, semi-permeable and permeable packings were tested under natural environment conditions (+19ºC), cold and dry chamber (10±2ºC and 33% RH) and cold chamber (16±2ºC and 60% RH), at 0, 90, 180, 270 and 360 days. The design was completely randomized in a 3x3x5 factorial scheme, with three replicates. In order to evaluate emergency in field, a 3x3 factorial arrangement (packing x environment) was adopted. Onion seeds maintained their physiological quality when stored in impermeable packing for 360 days, regardless of the environment. The seeds' physiological quality was maintained in the other packings when stored in a cold or cold and dry chamber, with viability and vigor above 80% up to 180 days of storage.

scholarly journals The physiological quality of yellow passion fruit (Passiflora edulis Sims. f. flavicarpa Deg.) seeds with different water content placed in a cold chamber room and environmental conditions

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 452-457
Author(s):  
Paula Aparecida Muniz de Lima ◽  
Khétrin Silva Maciel ◽  
Rodrigo Sobreira Alexandre ◽  
José Carlos Lopes
Keyword(s):  
Water Content ◽  
Natural Environment ◽  
Seed Quality ◽  
Passion Fruit ◽  
Laboratory Environment ◽  
Physiological Quality ◽  
Cold Chamber ◽  
Natural Laboratory ◽  
Yellow Passion Fruit

Seed quality is extremely important for the crop production system, and storage conditions are important to preserve this quality. The objective this study was to evaluate the physiological quality of yellow passion fruit seeds with different water contents placed in a cold chamber room (4°C) and in a natural laboratory environment (25 ± 2°C) for a period of eight months (240 days). Passion fruit seeds were harvested in orchards of the southern region of Espírito Santo, with water content adjusted to 10%; 14%; 18% and 22%, and placed in a cold chamber room and a natural laboratory environment. Germination, germination speed index, shoot and root length, fresh and dry mass of normal seedlings were evaluated. The experimental design was completely randomized, with two environments (cold chamber room and natural laboratory environment) and with a plot experimental arrangement subdivided according to time, with four replicates of 25 seeds within each environment. Yellow passion fruit seeds placed in a cold chamber room and natural environment with 14% of water content presented a higher physiological quality during eight months of storage. Yellow passion fruit seeds placed in a cold chamber room and natural environment presented maximum germination and vigour with 60 days of storage. Yellow passion fruit seeds exhibit orthodox behaviour, and should be stored at 14% of water content, in a cold chamber room and natural environment, without loss of viability and physiological quality over eight months, presenting maximum germination and vigour after 60 days storage, without the presence of pathogens.

scholarly journals Effect of physiological priming on stored coffee seeds

2021 ◽  
Vol 43 ◽  
Author(s):  
Amanda Carvalho Penido ◽  
Édila Maria de Rezende ◽  
Diego de Sousa Pereira ◽  
Venícius Urbano Vilela Reis ◽  
Debora Kelli Rocha ◽  
...  
Keyword(s):  
Coffea Arabica ◽  
Dry Weight ◽  
The Other ◽  
Physiological Quality ◽  
Coffee Cultivation ◽  
Cold Chamber ◽  
Water Contents ◽  
Priming Technique

Abstract: The physiological priming has been used to standardize and increase the speed of development of seed lots. The use of this technique is essential in coffee cultivation, as the crop has low longevity associated with slow and uneven germination. The objective was to evaluate the effect of physiological priming on the physiological quality of coffee seeds stored with different water contents. Seeds of two cultivars of Coffea arabica were used: cv. Catuaí Vermelho IAC144 and Topázio MG1190. A portion of the seeds were dried in the shade until reaching 12% moisture, and the other did not undergo drying. The seeds were stored in a cold chamber at 10 °C for nine months. Every three months, the physiological priming technique was performed with subsequent evaluation of the physiological quality by germination tests, root protrusion, normal seedlings at fifteen days, strong normal seedlings, seedlings with expanded cotyledonary leaves and seedling dry weight. Seeds that did not undergo drying subjected to the physiological priming technique maintained physiological quality after nine months of storage. Physiological priming was detrimental to dry seeds stored for nine months.

scholarly journals HEALTH AND PHYSIOLOGICAL POTENTIAL OF SOYBEAN SEEDS SUBMITTED TO DIFFERENT STORAGE CONDITIONS

2016 ◽  
Vol 91 (1) ◽  
pp. 40
Author(s):  
Pastora Josefina Querales ◽  
Victor Augusto Forti ◽  
Vanessa Cristina Frare ◽  
Taís Leite Ferreira Pinto ◽  
Annelise Roberta Tremocoldi ◽  
...  
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Harmful Effect ◽  
Accelerated Aging ◽  
Storage Conditions ◽  
Soybean Seeds ◽  
Laboratory Environment ◽  
Physiological Quality ◽  
Chamber Temperature ◽  
Cold Chamber

The objective of this study was to verify the health and physiological potential of soybean seeds submitted to different storage conditions. Three batches of soybean seeds were first evaluated for their health and physiological quality with sanitary, germination, seedling emergence in a greenhouse and accelerated aging tests; moisture content was also determined. The seeds were stored for six months under cold chamber (temperature of 10°C and 85% RH), dry chamber (temperature of 20°C and 50% RH) and laboratory (uncontrolled) conditions. Seed samples were taken every three months and submitted to the tests mentioned previously. The harmful effect of fungi on seed quality before storage was observed. Generally, there was a reduction in fungal occurrence with storage, principally for the conditions of the cold chamber and the uncontrolled laboratory environment, resulting in the increased of germination and seedling emergence. 

scholarly journals Physiological and biochemical aspects of castor beans seeds deterioration stored in different packaging conditions and temperatures

2016 ◽  
Vol 38 (3) ◽  
pp. 241-247 ◽  
Author(s):  
Heloisa Oliveira dos Santos ◽  
Maria Laene Moreira de Carvalho ◽  
Carla Massimo Caldeira ◽  
Stefânia Vilas Boas Coelho ◽  
Edila Vilela de Resende Von Pinho ◽  
...  
Keyword(s):  
Castor Bean ◽  
Seed Quality ◽  
Storage Conditions ◽  
Plastic Packages ◽  
Before And After ◽  
Physiological Quality ◽  
Emergence Percentage ◽  
Cold Chamber

Abstract: The present study aimed to evaluate effects of different storage conditions on the castor bean seed cultivar IAC-226 quality, stored for 12 months. For this purpose, seeds were stored in different environment and packaging conditions: in a cold chamber and conventional storage, using multiwall Kraft paper and in no vacuum and vacuum plastic packages at 1 atm; as well as under cryopreservation storage (-196 °C). Seed quality was evaluated before and after 4, 8 and 12 months of storage by germination tests, first count of germination, emergence percentage, emergence speed index and determination of changes in catalase (CAT) and superoxide dismutase (SOD) enzyme systems. Cryopreservation (-196 °C) is efficient in maintaining the physiological quality of castor bean cultivar IAC-226 for 12 months. The enzyme catalase stands out as a marker of castor seed deterioration during storage.

scholarly journals Deterioration of sunflower seeds during storage

2013 ◽  
Vol 35 (2) ◽  
pp. 240-247 ◽  
Author(s):  
Luciana Aparecida de Souza Abreu ◽  
Maria Laene Moreira de Carvalho ◽  
Crislaine Aparecida Gomes Pinto ◽  
Verônica Yumi Kataoka ◽  
Tanismare Tatiana de Almeida Silva
Keyword(s):  
Fatty Acids ◽  
Oil Content ◽  
Seed Quality ◽  
Storage Conditions ◽  
Sunflower Seeds ◽  
Plastic Packaging ◽  
Kraft Paper ◽  
Physiological Quality ◽  
Cold Chamber

The speed on deterioration of oil-seeds depends on conditions of the storage environment and on particularities of the species, which include the seed chemical composition. Within this study, the changes on quality of sunflower seeds, stored in different packaging types and environmental conditions, were investigated. The packaging used were multiwall Kraft paper and plastic packaging (with and without vacuum), under cold chamber and conventional storage conditions. Seed quality was evaluated by tests of: germination and accelerated aging; besides alterations on oil content, fatty acids profile, and isoenzymatic systems. The storage under cold chamber conditions was more efficient in maintaining physiological quality of sunflower seeds; and under such environment, the Kraft paper packaging was the most adequate. Under conventional storage facility, however, the plastic packaging, sealed with vacuum, has provided better maintenance of physiological quality. Changes in the sunflower seed quality were detected by the enzymatic systems: alcohol dehydrogenase and superoxide dismutase. The oil content in seeds decreases over time, regardless of storage condition. The linoleic and oleic acids constituted 80% of the total amount of fatty acids scanned. There have been no significant differences on the fatty acid profiles of the sunflower oil under the different storage conditions studied.

scholarly journals Physiological quality of fennel ( Foeniculum vulgare Miller) seeds stored in different containers and environmental conditions

2013 ◽  
Vol 35 (3) ◽  
pp. 331-339 ◽  
Author(s):  
Raquel Fialho Rubim ◽  
Silvério de Paiva Freitas ◽  
Henrique Duarte Vieira ◽  
Geraldo de Amaral Gravina
Keyword(s):  
Environmental Conditions ◽  
Seed Quality ◽  
Storage Conditions ◽  
Control Treatment ◽  
Foeniculum Vulgare ◽  
Glass Containers ◽  
Randomized Design ◽  
Physiological Quality ◽  
Cold Chamber

For an adequate conservation of seeds it is essential previously establishing the ideal conditions for their storage. Thereby, this study aimed at evaluating influence of packaging types and storage environmental conditions on physiological quality of fennel seeds. The seeds were stored into three different packaging types (cotton bags, multiwall paper bags, and glass containers), and stored under two environmental conditions (laboratory and cold chamber) during a twelve months period. Physiological seed quality was assessed before storage and at every two months after storage through tests of germination, germination speed index, and electrical conductivity. Experiment was performed on a completely randomized design with treatments arranged in a split-split plot arrangement in time (two environmental storage conditions x three packaging types x six storage periods + a control treatment), with four replications. Fennel seeds packaged into glass containers have maintained their physiological quality stable over the twelve storage months regardless storage environmental conditions; being considered the best container for storing fennel seeds; and cotton packaging was considered as the least efficient for both storage under laboratory environmental conditions as well as for storage under cold chamber conditions.

scholarly journals Storage of 'Swingle' citrumelo seeds in different maturation stages subjected to fungicide treatment

2011 ◽  
Vol 33 (4) ◽  
pp. 768-776 ◽  
Author(s):  
Tanismare Tatiana de Almeida Silva ◽  
Renato Mendes Guimarães ◽  
Édila Vilela de Resende Von Pinho ◽  
Luciana Aparecida de Souza Abreu
Keyword(s):  
Seed Quality ◽  
Long Term Storage ◽  
Maturation Stages ◽  
Pathogen Control ◽  
Physiological Quality ◽  
Polyethylene Bags ◽  
Citrus Orchards ◽  
Time Required ◽  
Cold Chamber ◽  
Swingle Citrumelo

The establishment of citrus orchards with rootstocks from seed with a low physiological quality has been a recurring problem. Low quality seeds directly affect both the final stand and the time required for seedling production. The irregular maturation of fruits, seed recalcitrance, and the high incidence of fungi, make long term storage difficult, even at low temperatures. This study evaluated the storage potential and the use of fungicide treatments on 'Swingle' citrumelo seeds extracted from fruits collected at two maturation stages, green or ripe. The seeds were subjected to a thermal treatment, treated with Derosal, Thiram or Tecto+Captan fungicides, packaged in impermeable polyethylene bags and stored in a cold chamber for nine months. Every three months, the physiological and sanitary qualities of the seeds were evaluated from germination and sanitary tests and also from enzyme profiles. Seeds from green fruits deteriorated less than those from mature fruits; deterioration increased up to nine months of storage; treatment with the Tecto+Captan mixture gave effective pathogen control and maintained seed quality during storage. The germination of the green and ripe seeds is satisfactory (70%) after three months storage.

‘He Brought the Cold Death on my Harandra’: The Cosmic Trilogy and the Ecotheology of Laudato si'

2018 ◽  
Vol 8 (2) ◽  
pp. 166-182
Author(s):  
Maria Poggi Johnson
Keyword(s):  
Natural Environment ◽  
The Other ◽  
Space Travel ◽  
Human Relationships ◽  
Other Hand ◽  
Divine Will ◽  
The Relationship

In his trilogy of space travel novels, published between 1938 and 1945, C.S. Lewis strikingly anticipates, and incarnates in imaginative form, the insights and concerns central to the modern discipline of ecotheology. The moral and spiritual battle that forms the plot of the novels is enacted and informed by the relationship between humans and the natural environment, Rebellion against, and alienation from, the Creator inevitably manifests in a violent and alienated attitude to creation, which is seen as something to be mastered and exploited. Lives and cultures in harmony with the divine will, on the other hand, are expressed in relationships of care and respect for the environment. The imaginative premise of the Trilogy is that of ecotheology; that the human relationships with God, neighbour, and earth and are deeply and inextricably intertwined.

scholarly journals Genetic diversity in soybean seed quality under different storage conditions

2017 ◽  
Vol 38 (1) ◽  
pp. 57
Author(s):  
Daniele Piano Rosa ◽  
Danúbia Aparecida Costa Nobre ◽  
Diego Santos Oliveira ◽  
Francisco Charles dos Santos Silva ◽  
André Ricardo Gomes Bezerra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Seed Quality ◽  
Soybean Seed ◽  
High Standard ◽  
Storage Conditions ◽  
Seed Vigor ◽  
Soybean Cultivars ◽  
High Germination ◽  
Physiological Quality ◽  
Almost All

This study aimed to assess the effect of genetic diversity on physiological quality of soybean seeds stored in cold chamber and under environmental conditions. Ten cultivars were assessed in a randomized factorial design (2x10). Factor 1 corresponded to two storage conditions and factor 2 to ten soybean cultivars, with four replications. The evaluated variables were total germination (G%), first count of germination (F%), percentage of abnormal seedlings (AS%), germination speed index (GSI), water content (WC), electrical conductivity (EC), dry matter of seedlings (DMS) and length of seedlings (LS). Data underwent ANOVA, followed by Scott Knott test, as well as multivariate analysis of genetic diversity. The results showed a higher physiological quality for seeds under cold storage. Half of the cultivars (FPS Júpiter, FPS Urano, FPS Antares, FPS Netuno and CD 250) presented high germination rates and seed vigor, being thus indicated as high-standard materials for further breeding programs. Besides that, storage environment had influence on the clustering of soybean cultivars. Moreover, cultivars had genetic dissimilarity for almost all assessed traits as G%, GSI, F%, AS%, EC, DMS and LS.

scholarly journals Lignification of the plant and seed quality of RR soybeans sprayed with herbicide glyphosate

Revista CERES ◽  
2013 ◽  
Vol 60 (2) ◽  
pp. 286-292
Author(s):  
Cristiane Fortes Gris ◽  
Edila Vilela de Resende Von Pinho ◽  
Maria Laene de Moreira Carvalho ◽  
Rafael Parreira Diniz ◽  
Thaís de Andrade
Keyword(s):  
Seed Quality ◽  
Lignin Content ◽  
Block Design ◽  
Accelerated Aging ◽  
Soybean Seeds ◽  
Randomized Block Design ◽  
Physiological Quality ◽  
Hand Weeding ◽  
Herbicide Glyphosate

Differences in levels of lignin in the plant between conventional and transgenic cultivars RR has been reported by several authors, however, there are few studies evaluating the influence of spraying of glyphosate on the lignin in the plant and RR soybean seeds. The aim of this study was to evaluate the physiological quality of RR transgenic soybean seeds and the lignin contents of plants sprayed with the herbicide glyphosate. The assays were conducted both in greenhouse and field in the municipality of Lavras, MG, in the agricultural year 2007/08. The experiment was arranged in a splitplot design with four replicates, considering the treatments hand weeding and herbicide glyphosate as plots, and five RR soybean cultivars (BRS 245 RR, BRS 247 RR, Valiosa RR, Silvânia RR and Baliza RR) as splitplots. In the greenhouse, the cultivars tested were BRS 245 RR and Valiosa RR in a randomized block design with four replicates. The sprayings were carried out at stages V3, V7 and early R5 (3L/ha). The 1000 seed weight, mechanical injury, germination and germination velocity index, emergence velocity index, accelerated aging, electrical conductivity and water soaking seed test, lignin content in the seed coat, in the stem and legumes were determined. The spraying of glyphosate herbicide, in greenhouse and field, did not alter the physiological quality of seeds and the lignin contents in the plant.

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