Physiological quality of cowpea seeds for different periods of storage
Oscar José Smiderle,Aline das Graças Souza,José Maria Arcanjo Alves,Cylles Zara dos Reis Barbosa +3 more
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TLDR
Irrespective of storage period, seeds of the Mazagao cultivar show superior physiological quality in relation to the other cultivars, and Seeds of the BRS Guariba and Grao Verde cultivars show a reduction in physiological quality after three months of storage.Abstract:
The aim of this study was to evaluate physiological quality in the seeds of four cowpea cultivars during nine months of storage. The cowpea cultivars used were BRS Mazagao, UFRR Grao Verde, Pretinho Precoce 1 and BRS Guariba, produced intercropped with cassava in the experimental area of the Centre for Agrarian Science of the Federal University of Roraima, in Boa Vista. After harvest, the seeds were dried, hand cleaned, placed in PET bottles and stored for nine months at a temperature of 23 oC and a relative humidity of 60% at the Seed Analysis Laboratory of Embrapa Roraima. Data analysis was carried out in a completely randomised design, in a 4 x 4 factorial scheme with eight replications. The physiological quality of the seeds was evaluated at the start of storage, and after 3, 6 and 9 months, for germination, first germination count, 1000-seed weight, moisture, electrical conductivity, speed of emergence, seedling field emergence and water gain. Physiological quality in the seeds of BRS Guariba is influenced by the storage period. Irrespective of storage period, seeds of the Mazagao cultivar show superior physiological quality in relation to the other cultivars. Seeds of the BRS Guariba and Grao Verde cultivars show a reduction in physiological quality after three months of storage.read more
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Journal ArticleDOI
Caracterização física das sementes de feijão-caupi, cultivar brs guariba, durante o processo de secagem
Guilherme Cardoso Oba,André Luís Duarte Goneli,Elton Aparecido Siqueira Martins,Cesar Pedro Hartmann Filho,Alexandre A. Gonçalves +4 more
TL;DR: It was found that both volumetric shrinkages can be represented by the modified Bala and Woods (1984), Corrêa et al. (2004), Exponential, Polinomial of first and second degree and Rahman (1995) models.
Efeito da densidade de semeadura na produção de amendoim
Daline Taynã Santos Barros,Aline das Graças Souza,Wellington Manoel dos Santos,Ademária Aparecida de Souza,Antonio Lucrécio dos Santos Neto +4 more
TL;DR: In this paper, a trabalho foi realizado with o objetivo of avaliar o desempenho produtivo de plantas de amendoim in fileiras duplas.
Journal ArticleDOI
Assessing the vigor of cowpea seeds using the Vigor-S software
Carlos Henrique Queiroz Rego,Silvio Moure Cicero,Fabiano França-Silva,Francisco Guilhien Gomes-Junior +3 more
TL;DR: In this article, the authors evaluated the vigor of cowpea seeds using the Vigor-S software (Automated Seed Vigor Analysis System), in comparison to the information provided by traditional vigor tests that are recommended for the species.
Journal Article
DISINFECTION OF COWPEA (Vigna unguiculata) SEEDS ON SEEDLINGS DEVELOPMENT
Oscar José Smiderle,Manoel Luiz Silva Neto,Aline das Graças Souza,Jerri Édson Zilli,Krisle Silva Silva +4 more
TL;DR: Germination in sand, germination speed and dry mass of seedlings obtained from seeds of cowpea cultivars were negatively influenced by sodium hypochlorite disinfection, and fungicides used negatively influenced cowpeA seed vigor for BRS Cauame and BRS Novaera, even in the absence of sodium hypchlorite.
DissertationDOI
Avaliação da morfologia interna e do vigor de sementes de feijão-caupi por meio de técnicas de análise de imagens
TL;DR: In this paper, the authors evaluated the internal morphology and vigor of cowpea seeds through the analysis of radiographic images, relating to the physiological potential and the evaluation of seed vigor with the use of Vigor-S® software (Automated Seed Vigor Analysis system).
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