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 Physiological quality and expression of genes in seeds of Handroanthus serratifolius subjected to drying

2015 ◽  
Vol 37 (2) ◽  
pp. 102-110
Author(s):  
Leandra Helena do Nascimento Gonçalves ◽  
Heloísa Oliveira dos Santos ◽  
Édila Vilela de Resende Von Pinho ◽  
Thaís de Andrade ◽  
Iolanda Vilela Von Pinho ◽  
...  
Keyword(s):  
Gene Expression ◽  
Water Content ◽  
Seed Quality ◽  
Isocitrate Lyase ◽  
Electrophoretic Pattern ◽  
Drying Methods ◽  
Heat Resistant ◽  
Expression Of Genes ◽  
Physiological Quality

Handroanthus serratifolius seeds are considered orthodox and have some mechanisms that assist in desiccation tolerance, like heat-resistant proteins and the presence of protective systems against free radical production. In order to investigate the drying effect on the quality of Handroanthus serratifolius seeds collected with 28% water content two methods were used: slow drying (30 °C) and fast drying (45 °C) until water contents equaled 20%, 15%, 10% and 5%. Seed quality was assessed by germination test, first count of germination, speed germination, emergence and speed emergence. The expression of heat-resistant proteins and enzymes catalase, esterase and isocitrate lyase was assessed by electrophoresis. The gene expression of sHSP17.5, CAT3 and ICL6 was quantified by real time PCR. Higher values of germination and vigor were obtained in seeds with 20% water content, subjected to fast drying. There was induction of heat-resistant proteins expression for both drying methods. There was variation in the electrophoretic pattern of catalase, esterase and isocitrate lyase in seeds subjected to different treatments. The gene expression in Handroanthus serratifolius seeds varies depending on methods of drying and water content of seeds. The drying of Handroanthus serratifolius seeds until the water content between 15 and 10% compromises their physiological quality.

scholarly journals X-ray test on passion fruit seeds submitted to different aryl removal methods

2018 ◽  
Vol 9 (3) ◽  
pp. 356-362
Author(s):  
Rogerio Luciano Severiano ◽  
Paloma Rayane Pinheiro ◽  
Francisco Guilhien Gomes Junior ◽  
Andre Dantas de Medeiros ◽  
MARCIO DIAS PEREIRA
Keyword(s):  
Quality Evaluation ◽  
Mechanical Damage ◽  
Passion Fruit ◽  
Local Market ◽  
X Ray ◽  
Water Degumming ◽  
Seedling Length ◽  
Physiological Quality ◽  
Yellow Passion Fruit

Passion fruit seeds present germination problems which are mainly attributed to growth regulating substances present in aryl. The objective of this work was to evaluate the quality of passion fruit seeds submitted to different aryl removal methods by the X-ray test compared to the traditional viability and vigor tests. Seeds extracted from giant yellow passion fruit were purchased from a local market and then subjected to the following aryl removal techniques: water degumming, sand rubbing, mechanical blending, fermentation and virgin lime. After aryl removal, the seeds were submitted to a physiological quality evaluation by the moisture degree, germination, first germination count, germination speed, and seedling length, and also a physical quality evaluation by X-ray test. The treatments using fermentation and virgin lime were harmful to the seeds and the aryl removal techniques of passion fruit seeds by means of degumming in water, sand friction and mechanically with a blender presented the best results. The X-ray test was efficient in identifying mechanical damage and deformations in passion fruit seeds.

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

2019 ◽  
Vol 41 (3) ◽  
pp. 286-292
Author(s):  
Girlânio Holanda da Silva ◽  
Mariana Zampar Toledo ◽  
Renake Nogueira Teixeira ◽  
Rubiana Falopa Rossi ◽  
João Nakagawa
Keyword(s):  
Pennisetum Glaucum ◽  
Storage Period ◽  
Ambient Conditions ◽  
Laboratory Environment ◽  
Grass Family ◽  
Physiological Quality ◽  
Harvest Techniques ◽  
And Storage ◽  
Natural Laboratory

Abstract: 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.

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 Physiological quality of yellow passion fruit seed produced under saline water, NPK and bovine biofertilizer

2015 ◽  
Vol 10 (30) ◽  
pp. 2948-2954 ◽  
Author(s):  
Andrey Guedes Dantas Stenio ◽  
Ferreira Cavalcante Lourival ◽  
Ursulino Alves Edna ◽  
Adeilson Medeiros do nascimento Jose ◽  
Aparecida da Silva Sherly ◽  
...  
Keyword(s):  
Saline Water ◽  
Passion Fruit ◽  
Physiological Quality ◽  
Yellow Passion Fruit

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 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 CHEMICAL DESICCANTS FOR ANTICIPATION OF HARVEST AND PHYSIOLOGICAL QUALITY OF COWPEA SEEDS

2020 ◽  
Vol 33 (4) ◽  
pp. 878-887
Author(s):  
ELIZETH REGINA RAISSE ◽  
MIQUÉIAS DE OLIVEIRA ASSIS ◽  
EDUARDO FONTES ARAUJO ◽  
FRANCISCO CLÁUDIO LOPES DE FREITAS ◽  
ROBERTO FONTES ARAUJO
Keyword(s):  
Seed Germination ◽  
Water Content ◽  
Seed Quality ◽  
Block Design ◽  
Control Treatment ◽  
Controlled Environment ◽  
Glufosinate Ammonium ◽  
Cowpea Seeds ◽  
Physiological Quality

ABSTRACT Information about the effect of herbicides on cowpea seed quality is scarce. The objective of this work was to evaluate the effect of using chemical desiccants at pre-harvest on the anticipation of harvest and physiological quality of cowpea seeds of the cultivar BRS-Tumucumaque, before and after storage. Two experiments were conducted: experiment 1 was conducted under a randomized block design, with four replications; the treatments consisted of seven herbicides (carfentrazone-ethyl, saflufenacil, glyphosate, paraquat, flumioxazin, glufosinate-ammonium, and diquat) and a control treatment; anticipation of harvest, and seed water content, germination, and vigor were evaluated. The seeds were stored for six months in controlled environment and not-controlled environment rooms and evaluated for water content, germination, and vigor in Experiment 2, which was conducted in a 7^2+1 factorial arrangement, with four replications; the first factor consisted of the seven herbicides, the second factor was the two storage environments, plus a control treatment. The results showed 3 to 9 days of anticipation of harvest relative to the control. The glufosinate -ammonium herbicide negatively affected seed germination and vigor. The glyphosate herbicide decreased seed germination and vigor after storage. The physiological quality of cowpea seeds at the post -harvest period and after six months of storage was not affected by the carfentrazone-ethyl and flumioxazin herbicides. Paraquat and diquat were the most efficient herbicides for the anticipation of harvest (nine days). Glyphosate and glufosinate -ammonium were the most harmful herbicides to seed physiological quality. The controlled environment room was the most adequate environment for seed conservation.

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.

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