Comportamento de sementes de milho híbrido durante o armazenamento sob condições variáveis de temperatura e umidade relativa do ar

Bilia, Denise Augusta Camargo; Fancelli, Antônio Luiz; Filho, Júlio Marcos; Machado, José Arimatéia Rabelo

doi:10.1590/s0103-90161994000100022

Cited by 4 publications

(2 citation statements)

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“…Seed deterioration is a major problem for agriculture, being responsible for serious losses worldwide, especially in the tropics where, in general, high temperatures and relative air humidity prevail during product maturation and storage (Bilia, 1994). Therefore, storage is an important step in the agricultural production chain, as it directly contributes to the quality of the product that reaches the consumer (Costa et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Sanitary Quality of Corn Grain Selled at Conab De Parnaíba

Costa¹,

Araújo²,

Oliveira³

2022

JSCS

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This work aimed to analyze the sanitary quality of stored corn grains, through the "Blottertest" and use of the water restriction technique. The experiment was carried out using a completely randomized design (D.I.C.) with 10 treatments and 24 repetitions, in which each repetition consisted of a Petri dish with 8 seeds/plate. The treatments were submitted to NaCl and KCl solution at restriction levels (-0.6; -0.7; -0.8 and -0.9 Mpa), freezing and control. The seeds were distributed in plastic Petri dishes (a total of eight/plate), measuring 90x15mm in diameter, containing three layers of filter paper soaked in the aforementioned solutions. These remained at a temperature of 25°C±2, for a period of 7 days, and were later analyzed for percentage of germination, radicle length and associated fungi, under a stereoscopic and optical microscope. The incidence of the fungal genera Colletotrichum sp., Aspergillus sp., Penicillium sp., Rhyzopus sp., Cladosporium sp., Bipolaris sp., Curvularia sp. and Fusarium sp. The genera with the highest incidence were Colletotrichum sp. (88.6%), Penicillium sp. (4.7%) and Aspergillus sp.(2.5%). The control treatment had the lowest average incidence rate in relation to the water restriction treatment. The lowest percentage of germination (1%) was obtained in the freezing treatment, which provided 9.5% of incidence of fungal genera. The greatest diversity of fungi was observed in the NaCL and KCl treatments (-0.9 Mpa), the same treatments provided the greatest inhibition of germination and radicle emission.

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Section: Introductionmentioning

confidence: 99%

Sanitary Quality of Corn Grain Selled at Conab De Parnaíba

Costa¹,

Araújo²,

Oliveira³

2022

JSCS

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“…As variedades que apresentaram redução mais significativa na emergência foram Caiano (38%) e Bico de Ouro (36%). Bilia et al (1994), ao armazenarem sementes de milho em câmara seca, câmara fria e condição ambiente não verificaram diferença com relação à emergência de plântulas à campo, sendo esta superior aos 90% para as três condições, ao final dos seis meses de avaliação. Na avaliação do índice de velocidade de emergência (IVE) (Figura 4 Dependendo da cultivar, sementes de milho com teor de água de 13%, acondicionadas em embalagens plásticas, mantêm sua qualidade fisiológica por 180 dias.…”

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Influência do tipo de embalagem na qualidade fisiológica de sementes de milho crioulo

Antonello

Muniz

Brand

et al. 2009

Rev. bras. sementes

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RESUMO -Objetivou-se com este trabalho avaliar a qualidade fisiológica de sementes de seis variedades de milho submetidas ao armazenamento em embalagens plásticas a vácuo e em sacos de pano. Para tanto, foram realizadas avaliações do teor de água, germinação, primeira contagem de germinação, emergência, índice de velocidade de emergência, comprimento de parte aérea e massa seca de plântulas. Utilizou-se o delineamento inteiramente casualizado, com os tratamentos arranjados em esquema 6x4x2 (variedades x tempos de armazenamento x embalagens). Durante os seis meses de armazenamento, o teor de água das sementes não ultrapassou os 13%. A germinação foi reduzida nas duas embalagens, sendo que na embalagem plástica, esta queda ocorreu devido à retirada do oxigênio de dentro da embalagem, enquanto, para as sementes armazenadas em sacos de pano, pela infestação dos insetos-praga e o aumento da incidência de fungos, ocasionado pelas condições ambientais durante o período de armazenamento. Na avaliação de emergência, a tendência foi semelhante. Para o comprimento de parte aérea e massa seca para as duas formas de armazenamento, ao final dos seis meses, observaram-se valores próximos ou superiores à condição inicial. A manutenção da qualidade fisiológica de sementes de milho, durante o armazenamento, depende da variedade e do tipo de embalagem.Termos para indexação: Zea mays L., embalagens plásticas, sacos de pano. INFLUENCE OF PACKAGING ON PHYSIOLOGICAL QUALITY OF MAIZE SEEDSABSTRACT -This study aimed to evaluate the physiological quality of maize seeds of six varieties submitted to the storage in plastic packaging and cloth bags. The moisture content, germination, germination first count, emergence, speed emergence rate, length and dry weight of seedlings were evaluated. During the six months of storage, the seed moisture content did not exceed 13%. The germination and emergency was reduced in both packagings, and in the plastic packaging, the reduction was due to the removal of oxygen from inside the package, while for the seeds stored in cloth bags, it was because of infestations of insect pests and increasing incidence of fungi due the ambient conditions during storage. The varieties performed differently regarding the physiological parameters of quality seeds, depending on the packaging used. The length and dry mass in the two types of storage presented values near or above the initial condition at the end of six months. The maintenance of maize seed physiological quality during storage depends on the variety and type of packaging.

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Germination responses of Jatropha curcas L. seeds to storage and aging

Moncaleano-Escandon

Silva

et al. 2013

Industrial Crops and Products

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Comportamento de sementes de milho híbrido durante o armazenamento sob condições variáveis de temperatura e umidade relativa do ar

Cited by 4 publications

References 1 publication

Sanitary Quality of Corn Grain Selled at Conab De Parnaíba

Sanitary Quality of Corn Grain Selled at Conab De Parnaíba

Influência do tipo de embalagem na qualidade fisiológica de sementes de milho crioulo

Germination responses of Jatropha curcas L. seeds to storage and aging

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