Análise de imagens no estudo morfológico e fisiológico de sementes de abóbora

Silva, Patrícia P.; Freitas, Rilton Alves de; Cícero, Silvio Moure; Marcos-Filho, J.; Nascimento, W. M. O. do

doi:10.1590/s0102-05362014000200016

Cited by 18 publications

(18 citation statements)

References 8 publications

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“…It was observed that the percentage of full seeds was related to germination, whose results were above 96% for nonstored seeds (Table 2). Working with pumpkin seeds collected between 30 and 60 DAA, Silva et al (2014) verified that the progress of the maturation stage of fruits increased considerably the percentage of full seeds, relating with the percentage of normal seedlings. When harvesting cucumber fruits between 30 and 55 DAA, Nakada et al (2011) also verified an increase in the percentage of full seeds with the maturation of fruits, coinciding with the increase of normal seedlings and vigor (electrical conductivity and emergence speed index).…”

Section: Resultsmentioning

confidence: 77%

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Physiological maturity and drying speed in the quality of zucchini ( Cucurbita pepo L.) seeds

et al. 2017

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-Harvesting and drying are essential procedures to obtain high quality seeds as well as for their conservation during storage. The goal of this research was to identify the physiological maturity stage and to verify the effect of drying speeds on the quality of zucchini seeds. A completely randomized design in a 3x2x2 factor scheme was used, involving three fruit maturation stages (49, 56 and 63 days after anthesis -DAA), two drying speeds (slow and quick) and two storage periods (0 and 6 months). Seed quality was evaluated by germination, first count, accelerated aging, electrical conductivity, tetrazolium, seedling emergence, emergence speed index and seed health test. Moisture content, thousand seed mass and percentage full seeds were also evaluated. Zucchini seeds reach maximum quality at 49 DAA. Slow or quick drying and storage do not affect the physiological quality of seeds that were harvested at 49 DAA. The delayed harvest of fruits reduces the quality of seeds. Quick drying reduces the incidence of the fungi Alternaria, Cladosporium, Phoma and Fusarium, and increases the occurrence of Aspergillus and Penicillium.Index terms: Cucurbita pepo L., storage, deterioration, seed health test.Maturidade fisiológica e velocidade de secagem na qualidade de sementes de abobrinha (Cucurbita pepo L.)RESUMO -A colheita e secagem são procedimentos essenciais para obtenção de sementes de elevada qualidade, bem como, para sua conservação durante o armazenamento. O objetivo nesta pesquisa foi identificar o estádio de maturidade fisiológica e verificar o efeito de velocidades de secagem sobre a qualidade de sementes de abobrinha. Utilizou-se o delineamento inteiramente casualizado em esquema fatorial 3x2x2, envolvendo três estádios de maturação de frutos (49, 56 e 63 dias após a antese -DAA), duas velocidades de secagem (lenta e rápida) e dois períodos de armazenamento (0 e 6 meses). A qualidade das sementes foi avaliada pelos testes de germinação, primeira contagem, envelhecimento acelerado, condutividade elétrica, tetrazólio, emergência de plântulas, índice de velocidade de emergência e sanidade. Também foi determinado o teor de água, massa de mil sementes e porcentagem de sementes cheias. As sementes de abobrinha atingem máxima qualidade aos 49 DAA. A secagem lenta e rápida e o armazenamento não influenciam a qualidade fisiológica das sementes colhidas aos 49 DAA. O atraso da colheita dos frutos reduz a qualidade das sementes. A secagem rápida reduz a incidência dos fungos Alternaria, Cladosporium, Fusarium e Phoma, e aumenta a ocorrência de Aspergillus e Penicillium.Termos para indexação: Cucurbita pepo L., armazenamento, deterioração, sanidade.1

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Section: Resultsmentioning

confidence: 77%

“…In studies with cucumber and pumpkin, Nakada et al (2011) and Silva et al (2014) verified that the seeds reached their physiological maturity (45 and 60 DAA) with 33 and 41% of moisture content, respectively. The high moisture content of seeds is necessary to have the proper synthesis and accumulation of stock materials (Marrocos et al, 2011).…”

Section: Resultsmentioning

confidence: 88%

Physiological maturity and drying speed in the quality of zucchini ( Cucurbita pepo L.) seeds

et al. 2017

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“…One of the first systems proposed for this purpose was developed for the evaluation of lettuce seedlings and it was called Seed Vigor Imaging System (SVIS ® ) (Sako et al, 2001). The efficiency of SVIS ® has already been demonstrated by researches on the seed vigor evaluation of several species from large crops and vegetables, such as soybean (Hoffmaster et al, 2003;Hoffmaster et al, 2005;Marcos-Filho et al 2009), maize (Hoffmaster et al, 2005;Mondo et al, 2011), melon (MarcosFilho et al, 2006), pumpkin (Silva et al, 2014), eggplant (Silva and Cícero, 2014a), and tomato (Silva and Cícero, 2014b).…”

Section: Introductionmentioning

confidence: 96%

Computerized image analysis of seedlings to evaluate broccoli seed vigor

Abud¹,

Cícero²,

Gomes³

2017

J. Seed Sci.

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-The computerized image analysis of seedlings constitutes an efficient technique to evaluate the quality of seed lots, since it is quick in responding, has a simple execution and reproduction. The goal of this research was to verify the efficiency of the computer image analysis of seedlings to detect vigor differences among broccoli seed lots and compare them with other traditionally used vigor tests. Computerized image analysis were performed by the Seed Vigor Imaging System (SVIS ® ), using 3-day-old seedlings and the results were compared to germination at first count, seedling emergence, accelerated aging and electrical conductivity tests. Evaluations were performed in three experimental periods (before storage, 6 and 12 months of storage at 20 °C and 45-50% RH). A completely randomized design with eight replications of 25 seeds was used. Data were submitted to analysis of variance and means were compared by Scott-Knott test at 5% error probability. It is concluded that it is possible to detect vigor differences among broccoli seed lots by the computerized image analysis of seedlings with SVIS ® , similarly to traditional vigor tests.

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“…In addition to all of these possibilities of use, the X -ray test has been successfully performed to relate the internal morphology of the seed with the germination or morphology of tomato seedlings [9], sweet pepper [10,11], eggplant [5], melon, pumpkin and watermelon [8], Acca sellowiana [12], pumpkin [13].…”

Section: Introductionmentioning

confidence: 99%

Image Analysis in the Evaluation of the Physical and Physiological Quality of Jiló (Solanum gilo) Seeds during Development

Alves

Pinho

Alves

et al. 2019

JEAI

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Currently, the X-ray image analysis of seeds has proved effective for the evaluation of the physical and physiological quality of the seeds, besides being a non-destructive method. The objective of this work was to evaluate the internal free area of jiló seeds (Solanum gilo) through the analysis of radiographic images and to relate the results with the germination of seeds in different stages of maturation. The seeds were harvested at 35, 40, 45 days after anthesis and 45 days after anthesis with 7 days at rest (45 DAAr). Seeds with free internal area ≤ 10% produced normal seedlings whereas seeds with an average free area above 10% produced abnormal or non-germinated seedlings. Seeds of fruits harvested at 45 DAA and seven days at rest showed a smaller internal free area and a formation of 100% of normal seedlings. The analysis of the radiographic images of jiló seeds allows the measurement of the free internal areas, as well as the determination of the relation between these and the germination. Alves et al.; JEAI, 35(6): 1-10, 2019; Article no.JEAI.48682 2 Original Research Article

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Análise de imagens no estudo morfológico e fisiológico de sementes de abóbora

Cited by 18 publications

References 8 publications

Physiological maturity and drying speed in the quality of zucchini ( Cucurbita pepo L.) seeds

Physiological maturity and drying speed in the quality of zucchini ( Cucurbita pepo L.) seeds

Computerized image analysis of seedlings to evaluate broccoli seed vigor

Image Analysis in the Evaluation of the Physical and Physiological Quality of Jiló (Solanum gilo) Seeds during Development

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