scholarly journals CONSERVATION OF SEEDS OF Myrcianthes pungens (Berg) Legr. IN DIFFERENT PACKAGING IN A CONTROLLED ENVIRONMENT1

2019 ◽  
Vol 43 (2) ◽  
Author(s):  
Patrícia Gibbert ◽  
Marlene de Matos Malavasi ◽  
Ubirajara Contro Malavasi ◽  
João Alexandre Lopes Dranski
Keyword(s):  
Water Content ◽  
Dry Matter ◽  
Storage Period ◽  
Germination Test ◽  
Plastic Packaging ◽  
Glass Containers ◽  
Plastic Bags ◽  
Seedling Length ◽  
Plastic Containers ◽  
Physiological And Biochemical

ABSTRACT Studying the physiological and biochemical behavior of Myrcianthes pungens seeds stored in different packages for up to ten months was the objective of this work. Seeds were collected in Toledo, Pato Bragado, and Marechal Cândido Rondon and stored in a cold and dry chamber (11 ºC and 6,3% RH) for ten months. The germination test and the germination speed index (GSI), the seedling length (SL), the seedling dry matter mass (DMS), and the tetrazolium (ZT) test were performed and, for each evaluation, the water content was determined. Non-parametric analysis was used. During storage, the water content of the seeds in the plastic and glass containers varied little, but decreased in the paper packaging. The germination was maintained for ten months when the seeds were stored in plastic containers and for two months in the glass and paper ones. The variables GSI, SL, and DMS presented upwards and downwards variations during the storage period. The ZT revealed that, in the plastic packaging, the seeds remained viable for up to ten months, in glass, up to two months, and in paper, up to four months. Therefore, seeds of Myrcianthes pungens with high initial quality can be stored in a cold and dry chamber in plastic bags, maintaining viability and vigor for a period of ten months

Fat Test Depression During Chilled Storage of Milk Samples in Plastic Containers for Analysis by the Milko-Tester1

1979 ◽  
Vol 42 (4) ◽  
pp. 314-316 ◽  
Author(s):  
C. W. DILL ◽  
S. A. HERLICK ◽  
R. L. RICHTER ◽  
J. W. DAVIS
Keyword(s):  
Storage Period ◽  
Water Mixture ◽  
Milk Samples ◽  
Chilled Storage ◽  
Plastic Bags ◽  
Glass Bottles ◽  
Ice Water ◽  
Plastic Containers ◽  
Time Of Collection

Ambiguous depressions in fat tests were observed when milk samples were stored before testing by the Milko-Tester procedure. Fat-test depression was augmented by shipping and by chilling samples at the time of collection in an ice-water mixture. The effect was greatest in samples stored in 1-oz. plastic containers and in partially filled plastic bags. The fat-test depression was not significant in samples stored in glass bottles or in plastic containers receiving no refrigeration during the storage period.

scholarly journals Effect of Packaging Materials and Storage Periods on the Vigor Parameters of Some Selected Varieties of Soybeans in Makurdi, Benue State, Nigeria

2019 ◽  
pp. 1-14
Author(s):  
J. O. Obute ◽  
S. V. Irtwange ◽  
T. Vange
Keyword(s):  
Storage Period ◽  
Packaging Material ◽  
Packaging Materials ◽  
Seedling Vigor ◽  
Storage Material ◽  
Germination Test ◽  
Plastic Container ◽  
Seedling Length ◽  
And Storage ◽  
Very High

This study was carried out in 2017 at the Federal University of Agriculture, Makurdi Nigeria. The study was aimed at evaluating the effect of packaging materials and storage period on the vigor parameters of some selected varieties of soybeans in Makurdi. The experimental design was 3x5x6 factorial CRD comprising 3 varieties, 5 storage periods and 6 packaging materials by 3 replicates. Samples were collected from National Cereal Research Institute, Yandev sub-station. The soybeans were cleaned, dried and the moisture content noted. Five hundred grams was measured into the various packaging material stored and at Strategic Grains Reserve, Federal Ministry of Agriculture Makurdi. The seeds in storage was sampled periodically (2, 4, 6 and 8 months) to determine quality by conducting standard germination test with 100 seeds (100 seeds/rep). The investigation revealed that V3 (TGx 1448-2E) stored for 2 months had the highest Shoot seedling length while V1 (TGx 923-3F) stored for 8 months had the least shoot seedling length. Soybeans stored in cloth had a very high Shoot seedling length at 2 months but dropped thereafter and turned out to be the lowest at the end of the storage period. V2 (TGx 1904-6F) stored in laminate paper produced the longest Shoot seedling length and also produced the shortest with V1. The seedling root length was longest in V3 stored for 2 months and least in V1 stored for 8months.Soybeans stored in cloth for 2 months produced very high SRL 2 months but dropped to 0.00 at the end of the storage period. V2 did better in LDPE than all the packaging materials. V1 had the shortest SRL in soybeans stored in bottle. The highest seedling vigor was recorded in V3 stored for 2 months while the lowest seedling vigor was recorded in V1 stored for 8 months. V2 in plastic container had the highest seedling vigor whileV1 in plastic had the lowest. However, significant differences were observed at (P< 0.05) in the interaction effect. In the present study, LDPE proved to be the best packaging material and the variety that had more resistance to deterioration was V2 (TGx 1904-6F). Soybeans that are stored at ambient should be in storage material that are impervious to air and moisture otherwise the seeds will lose viability and vigor. In addition, varieties that are prone to fast deterioration should not be stored longer.

scholarly journals STANDARDIZATION OF GERMINATION TEST AND RESPONSE TO NACL SALT STRESS IN Toona cliliata SEEDS

FLORESTA ◽  
2015 ◽  
Vol 45 (4) ◽  
pp. 845 ◽  
Author(s):  
Letícia Ramon De Medeiros ◽  
Manoela Andrade Monteiro ◽  
Patrícia Migliorini ◽  
Marilia Lazarotto ◽  
Lilian De Tunes
Keyword(s):  
Salt Stress ◽  
Sodium Chloride ◽  
Seed Germination ◽  
Dry Matter ◽  
Distilled Water ◽  
Germination Test ◽  
Light Regimes ◽  
Seedling Length ◽  
Toona Ciliata ◽  
Germinated Seeds

AbstractThe objective of this study was to evaluate the germination of Australian cedar seeds (Toona ciliata M. Roem) in three different substrates and two photoperiods and evaluate the effect of salt stress with sodium chloride (NaCl) on the viability and vigor of seeds, conducting two experiments. The first experiment was conducted in a constant temperature room at 25 C and two light regimes 12h 24h white light; and three substrates: sand, between paper and on paper. Evaluations were performed on the seventhand twenty-first day after sowing. Results were expressed as percentage of Normal Seedlings, Abnormal Seedlings and Dead Seeds, Number of True Leaves, Fresh, Dry Matter, Seedling Length and Root. The second experiment used constant 25 C and photoperiod of 12 hours light. With treatments T1 (0mM: distilled water); 25mMNaCl T2; T3 50mMNaCl; T4 and T5 100mMNaCl 75mMNaCl. We evaluated PCG, G, IVG, CP, CR. The photoperiod of 24h light, does not influence the final seed germination and the use of paper on substrate provided the highest percentage of germinated seeds. As to the effect of salt stress, the concentration of 50mMsalt, caused damage to the development of seedlings.ResumoPadronização do teste de germinação e resposta ao estresse salino por NaCl em sementes de Toona ciliata. O objetivo do trabalho foi avaliar a germinação de sementes de cedro australiano (Toona ciliata M. Roem) em três substratos com dois fotoperíodos e avaliar o efeito do estresse salino com cloreto de sódio (NaCl) na viabilidade e vigor de sementes. O experimento I foi conduzido em ambiente com temperatura constante a 25 ºC e dois regimes de luminosidade, 12h de 24h de luz branca; três substratos: areia, entre papel e sobre papel. As avaliações foram realizadas no sétimo e vigésimo primeiro dia após a semeadura. Os resultados expressos em porcentagem de Plântulas Normais, Plântulas Anormais e Sementes Mortas, número de Folhas Verdadeiras, Massa Fresca, Massa Seca, Comprimento de Plântula e Raiz. O experimento II utilizou temperatura constante a 25 ºC e fotoperíodo de 12 horas luz. Com os tratamentos T1 (0 mM: água destilada); T2 25 mMNaCl; T3 50 mMNaCl; T4 75 mMNaCl e T5 100 mMNaCl. Avaliando-se PCG, G, IVG, CP e CR. O fotoperíodo de 24h de luz, não influencia na germinação e o uso do substrato sobre papel proporcionou a maior germinação. Quanto ao efeito do estresse salino, a concentração de 20 mM de sal, prejudicou o desenvolvimento das plântulas.Palavras-chave: Sementes florestais; análise de sementes, vigor, salinidade.

scholarly journals Silicon alters early development of bean seedlings from seeds infected by Anthracnose

2021 ◽  
Vol 17 (3) ◽  
pp. 39-51
Author(s):  
Patrícia Migliorini ◽  
Cristina Rossetti ◽  
Andreia da Silva Almeida ◽  
Bruna Barreto Reis ◽  
Gustavo Fonseca Rodrigues ◽  
...  
Keyword(s):  
Early Development ◽  
Root Length ◽  
Aerial Part ◽  
Dry Matter ◽  
Dry Mass ◽  
Colletotrichum Lindemuthianum ◽  
Seed Coating ◽  
Germination Test ◽  
Initial Development ◽  
Seedling Length

The present study aimed to evaluate the effect of seed coating with Si in response to infection in a cultivar susceptible and resistant to Colletotrichum lindemuthianum, on the physiological and health potential of seeds and seedlings, during the initial development of bean culture. The experiment was carried out in a completely randomizeddesign, in a 2 × 2 × 2 factorial scheme, with four replications, where the factors were: cultivar (BRS Esplendor and IPR Tuiuiú), silicate application (with and without Agrosilício® coating) and inoculation (seeds inoculated or not with C. lindemuthianum). In the evaluation of the initial development of the culture, the following variables were measured: germination, first count of the germination test, emergence, emergence speed index (IVE), total seedling length, shoot and root length, total dry mass, aerial part dry matter, root dry matter and aerial part dry matter at 15 days after sowing (DAS). The incidence of C. lindemuthianumin beans was determined by the paper roll method. Covering the seeds with Si reduces the incidence and severity of C. lindemuthianumand provides greater growth of bean seedlings. The effect of responses potentiated by Si is more expressive in the cultivar of greater susceptibility.

scholarly journals Quality of millet seeds at different positions of the panicle

2020 ◽  
Vol 50 ◽  
Author(s):  
Juliana Martinatti ◽  
Erikson Kadoshe Morais Raimundo ◽  
Marina Barros Zacharias ◽  
Patricia Marluci da Conceição ◽  
Victor Augusto Forti
Keyword(s):  
Water Content ◽  
Dry Matter ◽  
Seed Mass ◽  
Lower Mass ◽  
Mass Percentage ◽  
X Ray ◽  
Seedling Length ◽  
Fusarium Sp ◽  
Possible Cause

ABSTRACT Many factors may interfere in the quality of millet seeds; however, it is not known whether the location at different positions of the panicle may affect this quality. This study aimed to evaluate the quality of millet seeds produced at different positions of the panicle using uniformity, 1,000-seed mass, water content, X-ray, germination, seedling length, seedling dry matter mass, cold and health tests. The panicles were divided into five equidistant portions (proximal 1, proximal 2, intermediary, distal 1 and distal 2), starting from the panicle insertion. It was observed that there are differences among the positions of the seeds in the panicles related to the physical, physiological and health characteristics. The seeds located at the ends of the panicles presented a lower mass and physiological potential. The highest occurrence of Fusarium sp. was verified in the seeds from the proximal 1 portion, what might indicate a possible cause for the reduction in the physiological potential. Seeds from the intermediary portion present a higher mass, percentage of intact seeds and physiological potential.

scholarly journals Study of genetic resources for Powdery mildew resistance by biochemical and physiological parameters on peaches and nectarines in Romania

2004 ◽  
Vol 10 (1) ◽  
Author(s):  
S. Toma ◽  
A. Ivascu ◽  
M. Oprea ◽  
E. Delian ◽  
F. Toma ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Water Content ◽  
Dry Matter ◽  
Powdery Mildew Resistance ◽  
Genetic Material ◽  
Research Station ◽  
Powdery Mildew Fungus ◽  
Mildew Resistance ◽  
Isolation And Characterization ◽  
Physiological And Biochemical

During 1997-2002, studies on the physiological and biochemical changes due to powdery mildew attack in peach and nectarine cultivars and hybrids belonging to different classes of resistance had been performed at the Research Station for Fruit Tree Growing (RSFTG) Baneasa Bucharest, located in the southern part of Romania. The study was based on disease assessments in the field and on other diagnosis criteria. The southern part of Romania has favourable ecological conditions for growing peach and nectarine but trees have been attacked by various pathogens such as Sphaerotheca pannosa (Wallr.: Fr.) Lev. var. persicae Woronichin fungus for a long time. The presence of the pathogen causes important changes in the quantity and quality of fruits and affects the metabolism of trees. This study was focused on several physiological and biochemical parameters such as photosynthesis and respiration intensity along with catalase activity; and changes in some biochemical compounds such as free, total and linked water content, dry matter, nitrogen and protein content, tannin levels. The aim was to find possible correlation among the above parameters and the biotic stress induced by the powdery mildew fungus calculated as attack degree (AD%). Results showed that photosynthesis diminished significantly in the case of the attacked phenotypes, the respiration was more intense in the infected cultivars and catalase proved to be less intense in the affected plants. The total water content significantly increased in contrast to the dry matter and tannin contents, which greatly reduced in the case of resistant cultivars such as 'Victoria', Vectared 7', 'KB 11-40'. The total nitrogen and protein levels showed less influence on resistance to powdery mildew on all cultivars. All genetic material found resistant to powdery mildew is currently used in peach and nectarine breeding programs in Romania. Further studies focused on isolation and characterization of resistance genes for powdery mildew resistance will be done in the future based on data collected during several years.

scholarly journals The influence of calyx maturation stage and types of packaging on the germination of goldenberry seeds

2020 ◽  
Vol 14 ◽  
Author(s):  
Weslley Rosário Santana ◽  
Érica Duarte Silva ◽  
Gleison Oliosi ◽  
Jalille Amim Altoé ◽  
Jeniffer Ribeiro De Oliveira ◽  
...  
Keyword(s):  
Seed Viability ◽  
Storage Period ◽  
Maturation Stage ◽  
Harvest Time ◽  
Germination Test ◽  
Brownish Yellow ◽  
Greenish Yellow ◽  
Plastic Bags ◽  
Maturation Stages ◽  
Sexual Propagation

Studies of the optimum harvest time for obtaining seeds for the sexual propagation of the goldenberry are essential to help maintain seed viability. This study aimed to determine the optimum harvest time for the goldenberry based on the calyx maturation stage and viability of stored seeds. The design was completely randomized a in factorial design (5 x 3), with three replications. The treatments consisted of a combination of five calyx maturation stages, assessed based on color (green, green-yellow, greenish-yellow, yellow, brownishyellow), and three types of packaging: Kraft paper bags, plastic bags, and glass. The seeds were removed from the fruit and stored at the same temperature and shade conditions for 120 days. Based on the results of the 21-day germination test, it is recommended that goldenberry seeds should be obtained from fruit with a green-yellow to brownish-yellow calyx. All the packaging types analyzed by this study are recommended for the storage of goldenberry seeds obtained from fruit with a green-yellow to brownish-yellow calyx for a 120-day storage period.

scholarly journals Physiological response of soybean seeds to spray volumes of industrial chemical treatment and storage in different environments

2020 ◽  
Vol 42 ◽  
Author(s):  
Julia Abati ◽  
Cristian Rafael Brzezinski ◽  
Elieges Carina Bertuzzi* ◽  
Fernando Augusto Henning ◽  
Claudemir Zucareli
Keyword(s):  
Cold Storage ◽  
Dry Matter ◽  
Seedling Emergence ◽  
Storage Period ◽  
Soybean Seeds ◽  
Climate Control ◽  
Seedling Length ◽  
Randomized Experimental Design ◽  
Chemical Products ◽  
And Storage

Abstract: The increase in spray volumes in industrial seed treatments may increase the deterioration and reduce the physiological potential of seeds, especially when stored in unfavorable environments. The aim of this study was to evaluate the effect of spray volumes obtained by the combination of different chemical products, via industrial treatment, on the physiological potential of soybean seeds during storage in different environments. A completely randomized experimental design was used in a 5 × 3 factorial arrangement, with four replications. The factors were five spray volumes (0, 600, 1200, 1800 and 2400 mL.100 kg-1 of seeds), obtained from the combination of different products in commercial use, and three storage periods (0, 60 and 120 days), evaluated separately in two environments (storage without climate control and cold storage). The following variables were evaluated: germination, first germination count, seedling emergence in sand, emergence speed index, seedling length (total, shoot, and root) and dry matter (shoot and root). The physiological potential of soybean seeds is reduced by increasing the spray volume used in the industrial treatment and by prolonging the storage period. However, this effect is mitigated by the controlled conditions of cold storage.

scholarly journals Penurunan mutu dan pendugaan umur simpan sup krim instan labu kuning diperkaya tempe untuk lansia dengan metode accelerated shelf life testing (ASLT)

2020 ◽  
Vol 8 (2) ◽  
pp. 134-142
Author(s):  
Salma Shafrina Aulia ◽  
Budi Setiawan ◽  
Tiurma Sinaga ◽  
Ahmad Sulaeman
Keyword(s):  
Lipid Oxidation ◽  
Shelf Life ◽  
Water Content ◽  
Water Activity ◽  
Critical Parameter ◽  
Storage Period ◽  
Life Testing ◽  
Quality Of Water ◽  
Long Time

Background: Instant pumpkin cream soup enriched with tempeh had fulfilled 10% Recommended Dietary Allowances (RDA) for elderly so that it can be used as an easy-to-serve snack, but decreasing quality of instant cream soup will be happened if the instant cream soup was stored for a long time. Objectives: This study aimed to analyze quality of water content, water activity and lipid oxidation in instant pumpkin cream soup during storage and estimated the shelf life of pumpkin cream soup enriched with tempeh.Method:  Quality storage was analyzed using of water content, water activity (aw) and lipid oxidation. Estimation of shelf life was analyzed using Arrhenius Accelerated Shelf Life Testing (ASLT) model.Results: The results showed that the water content, aw levels and lipid oxidation of instant pumpkin cream soup increased during the storage period. The critical parameter used in this study was lipid oxidation. Instant cream soup without the addition of tempeh can last 447 days  while the cream soup with the addition of tempeh has a shelf life of 433 days.Conclusion: Quality of instant pumpkin cream soup decreased during the storage period and it would be expired over a year.

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