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

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.

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Producción de semilla de tomate de cáscara en hidroponía

Revista de Ingeniería Tecnológica ◽

10.35429/jten.2019.10.3.19.24 ◽

2019 ◽

pp. 19-24

Author(s):

Eduardo Rodríguez-Guzmán ◽

Luis Javier Arellano-Rodríguez ◽

Alicia De Luna-Vega ◽

Cruz Arriaga-Ruiz

Keyword(s):

Volcanic Rock ◽

Seed Production ◽

Nutrient Solution ◽

Seed Yield ◽

Seed Quality ◽

Productive Capacity ◽

Physiological Quality ◽

Polyethylene Bags ◽

Husk Tomato

Fruit and seed productive capacity and physiological seed quality of 2 varieties of husk tomato were estimated: Jojutla and CHF1. The study was conducted in hydroponics under greenhouse, in the CUCBA-UDG, Zapopan, Jalisco. Red volcanic rock (/Tezontle) of 0.5 to 2 cm in diameter was used in 19 L polyethylene bags and Steiner's universal nutrient solution of 0.3 to 0.7 atm, depending on the stage of the plant. The production of fruit and seed and the physiological quality of the seed were estimated. The varieties Jojutla and CHF1 showed a similar behavior in the production of fruit and seed, with lower fruit yields than expected (30 ton / ha in the field) because only 3 harvests were made, looking to produce husk tomato in winter when it reaches attractive prices. The weight of the fruit was greater as cuts were made while the seed production improved by cutting, associated with a greater number of fruits, while the weight of the fruit was not related to the seed yield. The physiological quality of the seed was affected by cutting the fruit to commercial maturity even when it was left to mature in the shade.

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

BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura ◽

10.37856/bja.v91i1.245 ◽

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.

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

Journal of Seed Science ◽

10.1590/2317-1545v38n3165298 ◽

2016 ◽

Vol 38 (3) ◽

pp. 241-247 ◽

Cited By ~ 1

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.

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Physiological Quality of Swingle Citrumelo Seed after Refrigerated Storage of Fruits and Seeds

Agriculture ◽

10.3390/agriculture11121243 ◽

2021 ◽

Vol 11 (12) ◽

pp. 1243

Author(s):

Marilia Morelli ◽

Fernando Alves de Azevedo ◽

Ana Julia Borim de Souza ◽

Rodrigo Martinelli ◽

Patrícia Marluci da Conceição

Keyword(s):

Seed Germination ◽

Germination Rate ◽

Soluble Solids ◽

Maturation Stage ◽

Refrigerated Storage ◽

Seed Extraction ◽

Physiological Quality ◽

Definition Of ◽

Cold Chamber ◽

Swingle Citrumelo

For citrus, there is no definition of the ideal fruit harvesting point for seed extraction. Some studies have shown the positive effect of postharvest refrigerated storage of fruits to obtain quality seeds. This study aimed to evaluate the influence of the fruit maturation stage on the germination of Swingle citrumelo (CS) seeds after the refrigerated storage of fruits and seeds. CS fruits were harvested at 180 days after anthesis (DAA); 210 DAA and 240 DAA. Fruits and seeds were stored in cold chamber for 0, 15, 30, and 45 days. Physicochemical analyses were performed on fruits (colour, soluble solids, acidity and ratio) and seeds (water content, germination, and emergence). Germination of seeds extracted from fruits harvested at 180, 210, and 240 DAA, without refrigerated storage, showed a positive correlation with colour index. The refrigerated storage of fruits and seeds extracted from fruits harvested at 210 DAA, increased the seed germination rate. Peel colour (IC) was correlated positively with the germination of Swingle citrumelo seeds. The results of this study revealed that the absence of refrigerated storage, harvesting Swingle citrumelo fruits, with ripe characteristics (end of harvest), results in a high seed germination rate. On the other hand, refrigerated storage of fruits and seeds extracted from fruits harvested at mid-harvest increases the seed germination rate.

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Deterioration of sunflower seeds during storage

Journal of Seed Science ◽

10.1590/s2317-15372013000200015 ◽

2013 ◽

Vol 35 (2) ◽

pp. 240-247 ◽

Cited By ~ 12

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.

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Physiological potential of onion seeds stored in different packings and environments

Horticultura Brasileira ◽

10.1590/s0102-053620200312 ◽

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.

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

Journal of Seed Science ◽

10.1590/s2317-15372013000300009 ◽

2013 ◽

Vol 35 (3) ◽

pp. 331-339 ◽

Cited By ~ 1

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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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

Australian Journal of Crop Science ◽

10.21475/ajcs.19.13.03.p1462 ◽

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.

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Genetic diversity in soybean seed quality under different storage conditions

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n1p57 ◽

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.

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MATURATION STAGES OF FRUITS AND PHYSIOLOGICAL SEED QUALITY OF Physalis ixocarpa BROT. EX HORMEN

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452017151 ◽

2017 ◽

Vol 39 (3) ◽

Cited By ~ 2

Author(s):

NATÁLIA DOS SANTOS BARROSO ◽

MANUELA OLIVEIRA DE SOUZA ◽

LAURA CAROLINA DA SILVA RODRIGUES ◽

CLAUDINÉIA REGINA PELACANI

Keyword(s):

Seed Quality ◽

Germination Rate ◽

Development Stage ◽

Physiological Changes ◽

Ripe Fruit ◽

Maturation Stages ◽

Chlorophyll A And B ◽

Dark Green ◽

Dry Matter Weight

ABSTRACT Physalis is represented by species that produce fruits with relevant potential for national and international marketing. The species are normally grown from seeds, so maturation studies are important to assist the point of harvest, as well as seeds with a high physiological potential, since the fruits remain enclosed within a cup throughout their development. Despite the nutraceutical importance of fruits and medicinal potential of many species of Physalisinformation on the physiological seeds quality are scarce. This study aimed to monitor the physical and physiological changes of maturation and the viability of seeds during fruit development stages. The fruits of P. ixocarpa were collected in 15, 25, 35, 45, 55 days after anthesis (DAA). Length, diameter, fresh weight, skin and cup coloring characterization, TSS content, number and weight of seeds per fruit were obtained at each development stage. We also evaluated and correlated the coloring and pigment content of the cup (chlorophyll a and b). Water content, dry matter weight and germination rate were measured from fresh and dry seeds (room conditions, 72 hours). The main physical and physiological changes during maturation occurred within 35 DAA. The maximum physiological seeds quality was achieved within 45 DAA when the cup is completely or partially broken with coloring between yellowish-green and light-yellowish-brown and the ripe fruit in dark-green.

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