Physical and physiological quality of rice seeds in function of drying temperature and storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

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Influence of drying temperature and storage period on the quality of cherry and plum tomato powder

Food Science & Nutrition ◽

10.1002/fsn3.658 ◽

2018 ◽

Vol 6 (4) ◽

pp. 1146-1153 ◽

Cited By ~ 1

Author(s):

Adewale Obadina ◽

Jumoke Ibrahim ◽

Ifeoluwa Adekoya

Keyword(s):

Storage Period ◽

Drying Temperature ◽

Tomato Powder ◽

And Storage

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Biochemical changes and physiological quality of corn seeds subjected to different chemical treatments and storage times

Journal of Seed Science ◽

10.1590/2317-1545v42234181 ◽

2020 ◽

Vol 42 ◽

Author(s):

Thiago Lucas de Oliveira ◽

Renzo Garcia Von Pinho ◽

Heloisa Oliveira dos Santos ◽

Karen Marcelle de Jesus Silva ◽

Elise de Matos Pereira ◽

...

Keyword(s):

Superoxide Dismutase ◽

Alcohol Dehydrogenase ◽

Cold Test ◽

Chemical Treatments ◽

Treatment Standard ◽

Quality Markers ◽

Physiological Quality ◽

Storage Times ◽

And Storage

Abstract: The chemical treatment of corn seeds is widely adopted for protecting crops at the early stages. However, some molecules interfere in the quality of seeds, especially when stored, by accelerating their deterioration. The objective of this work was to investigate the influence of insecticides on the enzymatic expression and quality of corn seeds subjected to storage. Seeds of the hybrids 2B647PW and SHS4070 were subjected to four different chemical treatments (standard treatment, standard + clothianidin, standard + thiamethoxam, and standard + fipronil) and stored for different periods (0, 3, 6, and 9 months). The quality evaluation included the germination test, first germination count, cold test, and health test. The expression of the enzymes α-amylase, esterase, superoxide dismutase, catalase, and alcohol dehydrogenase were determined by the gel electrophoresis technique. The insecticides clothianidin, thiamethoxam, and fipronil reduce the physiological quality of the seeds of hybrid 2B647PW after nine months of storage. The treatment of seeds with the insecticides clothianidin, thiamethoxam, and fipronil reduces the expression of α-amylase, superoxide dismutase, and catalase enzymes after nine months of storage. The enzymes α-amylase, superoxide dismutase, catalase, and alcohol dehydrogenase are good quality markers for hybrid corn seeds.

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Performance of rice seeds treated with zinc, boron, and molybdenum

Journal of Seed Science ◽

10.1590/s2317-15372013000400016 ◽

2013 ◽

Vol 35 (4) ◽

pp. 532-539 ◽

Cited By ~ 3

Author(s):

Lizandro Ciciliano Tavares ◽

Daniel Ândrei Robe Fonseca ◽

André Pich Brunes ◽

Cassyo de Araujo Rufino ◽

Géri Eduardo Meneguello ◽

...

Keyword(s):

Leaf Area ◽

Plant Height ◽

Initial Growth ◽

Rice Seedlings ◽

Aerial Parts ◽

Seedling Length ◽

Randomized Experimental Design ◽

Physiological Quality ◽

Rice Seeds

The objective of this study was to assess physiological quality of seeds and the initial growth of lowland rice seedlings, cv. PUITA INTA-CL, treated with a product based on Zinc, Boron and Molybdenum. The following dosages of product were used: 0 (control), 50, 100, 150 and 200 mL.100 kg-1 seed. A completely randomized experimental design was used, with 10 treatments and four replications. Physiological quality of seeds was assessed by following tests: germination; first count of germination; and length and dry phytomass of seedlings. The initial growth was assessed at 7, 14, 21, 35, and 42 days after emergence (DAE) through plant height, leaf area and dry phytomass of aerial parts and roots. It was concluded that the treatment of rice seeds with the product containing Zinc, Boron and Molybdenum up to the dosage tested of 200 mL.100 kg-1 seed does not influence germination, first count of germination, and the dry phytomass of aerial parts and roots; however, negatively influences seedling length. In addition, it also promotes greater plant height, higher leaf area, higher production of dry phytomass of seedlings, and increase on the growth rate, until 42 DAE.

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Drying and storage of Eugenia involucrata DC. seeds

Scientia Agricola ◽

10.1590/s0103-90162003000300009 ◽

2003 ◽

Vol 60 (3) ◽

pp. 471-475 ◽

Cited By ~ 23

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.

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Relationship between internal morphology and physiological quality of pepper seeds during fruit maturation and storage

Agronomy Journal ◽

10.1002/agj2.20071 ◽

2020 ◽

Vol 112 (1) ◽

pp. 25-35 ◽

Cited By ~ 3

Author(s):

André Dantas Medeiros ◽

Manuel Jesús Zavala‐León ◽

Laércio Junio da Silva ◽

Ariadne Morbeck Santos Oliveira ◽

Denise Cunha Fernandes dos Santos Dias

Keyword(s):

Fruit Maturation ◽

Internal Morphology ◽

Physiological Quality ◽

And Storage

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Treatment of rice seeds with salicylic acid: seed physiological quality and yield

Journal of Seed Science ◽

10.1590/2317-1545v36n3636 ◽

2014 ◽

Vol 36 (3) ◽

pp. 352-356 ◽

Cited By ~ 8

Author(s):

Lizandro Ciciliano Tavares ◽

Cassyo Araújo Rufino ◽

Sandro de Oliveira ◽

André Pich Brunes ◽

Francisco Amaral Villela

Keyword(s):

Salicylic Acid ◽

Seed Yield ◽

Seed Treatment ◽

Seed Quality ◽

Rice Seed ◽

Promising Alternative ◽

Seed Industry ◽

Physiological Quality ◽

Rice Seeds

Seed treatment with growth regulators, especially salicylic acid, is a promising alternative to the seed industry because it is an important inducer of resistance to diseases and pests, as well as acting significantly on quality and seed yield. The objective of this study was to evaluate the performance of rice seed treated with different concentrations of salicylic acid, as well as assess the crop yield and seed quality. The treatments consisted of increasing levels of 0, 50, 100, 150 and 200 mg.L-1 salicylic acid. To this was prepared a stock solution of salicylic acid and the highest concentration by successive dilution in distilled water, the other concentrations were obtained. The physiological quality of seeds produced was treated and evaluated by tests of vigor and germination, and after harvest were evaluated seed yield. It follows that treatment of rice seeds with salicylic acid concentrations up to 130 mg.L-1 at a dose of 2 mL.kg-1 seed does not affect the germination and affects the strength, however provides substantial increases in the yield of seeds. The seed treatment with salicylic acid has no influence on seed quality produced.

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Effect of drying, pelliculation and storage on the physiological quality of eggplant seeds

Journal of Seed Science ◽

10.1590/2317-1545v32n2959 ◽

2014 ◽

Vol 36 (2) ◽

pp. 240-245 ◽

Cited By ~ 3

Author(s):

Natassia Zamariola ◽

João Almir Oliveira ◽

Luiz Antônio Augusto Gomes ◽

Michelle Fonseca Jácome ◽

Leandro Vilela Reis

Keyword(s):

Seed Quality ◽

Seedling Emergence ◽

Film Coating ◽

Germination Percentage ◽

Hybrid Seeds ◽

Physiological Quality ◽

Forced Air ◽

Air Circulation ◽

And Storage

The use of methods and technologies such as drying and film coating can bring significant contributions to the farmer. This experiment was conducted in order to evaluate the effect of drying and film coating on the physiological quality of eggplant seeds during storage. Hybrid seeds UGA MS1 produced by the company Hortiagro - Ijaci, MG were used. Seeds were subjected to two types of drying: slow (room temperature) and quick (oven with forced air circulation at 35 ºC). The chemical treatment was performed with the Captan product at a dose of 250 grams per 100 kilograms of seed and for the recoating were used three doses of polymer: (0, 3 and 6 mL.kg-1 of seeds). The physiological quality of seeds was evaluated every three months until reaching the period of nine months using germination test, seedling emergence test and seedling establishment. There is a reduction of physiological seed quality during the storage. The slow drying of eggplant seeds results in better quality seeds. The use of polymer reduces the germination percentage, germination speed index and the percentage of seedling emergence.

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Abiotic factors in the effect of herbicides on the physiological quality of rice seeds

Revista Ciência Agronômica ◽

10.5935/1806-6690.20150070 ◽

2015 ◽

Vol 46 (4) ◽

pp. 818-825

Author(s):

Eduardo Venske ◽

Carlos Eduardo Schaedler ◽

Carlos André Bahry ◽

Thais Ongaratto de Camargo ◽

Paulo Dejalma Zimmer

Keyword(s):

Abiotic Factors ◽

Physiological Quality ◽

Rice Seeds

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Seed quality of rice cultivars stored in different environments

Journal of Seed Science ◽

10.1590/s2317-15372014000100004 ◽

2014 ◽

Vol 36 (1) ◽

pp. 32-39 ◽

Cited By ~ 3

Author(s):

Elizabeth Rosemeire Marques ◽

Eduardo Fontes Araújo ◽

Roberto Fontes Araújo ◽

Sebastião Martins Filho ◽

Plínio César Soares

Keyword(s):

Seed Quality ◽

Accelerated Aging ◽

Storage Period ◽

Rice Cultivars ◽

Germination Test ◽

Randomized Design ◽

Physiological Quality ◽

Completely Randomized Design ◽

And Storage

The objective of this study was to evaluate dormancy and physiological quality of seeds of rice cultivars during storage in different environments. After harvesting, the seeds of three rice cultivars (Seleta, Curinga and Relâmpago) were dried in the sun, to reach moisture content at around 13%. Then, they were packed in paper and stored in four environments: 5 ± 2 ºC / 70 ± 5% RH, 12 ± 2 ºC / 70 ± 5% RH, 18 ± 2 ºC / 65 ± 5% RH and in uncontrolled condition of temperature and relative humidity (natural). Physiological quality was evaluated at the beginning and at 3, 6, 9 and 12 months of storage by germination test, electrical conductivity, accelerated aging and sand emergence. The experiment was conducted in split plots in a completely randomized design with three replications. Environmental factor was applied in the plots, cultivars in the subplots and storage period in subplots. Cultivar Seleta showed higher dormancy, which was surpassed during storage regardless of environment conservation. In general, seeds stored in natural environment showed lower physiological quality. Only the seeds of cultivar Seleta, regardless of the environment, maintained germination above the minimum required for commercialization until six months of storage.

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