Alterações isoenzimáticas em sementes de cultivares de soja em diferentes condições de armazenamento

Carvalho, Everson Reis; Mavaieie, Denilson Paulo da Rosa; Oliveira, João Almir; Carvalho, Marcos Vinícios de; Vieira, Antônio Rodrigues

doi:10.1590/s0100-204x2014001200007

Cited by 29 publications

(49 citation statements)

References 15 publications

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“…However, for the cultivar SYN 9074 RR, the rates were stable until the fourth month and there was a prominent decrease after six months. Carvalho et al (2014a) reported similar results, where starting from the sixth month of storage in uncontrolled conditions there was a drastic reduction on soybean seed germination. However, Almeida et al (2010) found a linear loss of soybean seed germination stored for 180 days at ambient condition.…”

Section: Germinationsupporting

confidence: 54%

“…Seeds from the SYN 9074 RR cultivar, pre-packaging cooled or not cooled show, in general, prominent decrease on vigor after a four month storage, according to tendency lines (Figure 3c and 3d), a latter vigor reduction, which shows differences regarding the storage tolerance. Carvalho et al (2014a) report that soybean genotypes show different levels of storing tolerance. In both cultivars, the vigor decrease was accentuated after six and especially in eight months, culminating with low vigor index at the end of storage (Table 1 and Figure 3).…”

Section: Accelerated Agingmentioning

confidence: 99%

“…In both cultivars, the vigor decrease was accentuated after six and especially in eight months, culminating with low vigor index at the end of storage (Table 1 and Figure 3). For Carvalho et al (2014a), in uncontrolled conditions, either vigor or germination is reduced especially after six months of storing. Cunha et al (2009) reported soybean seed vigor reduction after six months of storage in cold chamber (12 ºC and 65% UR).…”

Section: Accelerated Agingmentioning

confidence: 99%

“…This justifies the increasing demand and need of the use of high quality seeds (Vieira et al, 2010;Carvalho et al, 2014a). Villela and Menezes (2009) highlighted the need of adopting modern post-harvest techniques which allows the conservation and quality of the seeds, ensures the maintenance of germination and minimizes vigor reduction.…”

Section: Introductionmentioning

confidence: 99%

“…Conditions of low temperature and low relative humidity of the air enable the reduction of the seed respiratory activity and, consequently, the speed of the deterioration process (Carvalho and Nakagawa, 2012;Lima et al, 2014;Smaniotto et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Pre-packing cooling and types of packages in maintaining physiological quality of soybean seeds during storage

et al. 2016

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Seeds storing under appropriate conditions reduces the speed of the seeds deterioration process. The aim of this study was to evaluate pre-packing cooling and types of packages in the maintenance of the physiological quality of soybean seeds during storage. The completely randomized experimental design was used, with four replications, considering a factorial arrangement involving or not the pre-packing cooling of the seed mass, three types of packages (multi-layer paper bag, big bag, and polyethylene container), and five storing periods (0, 2, 4, 6 and 8 months). The physiological quality was evaluated by the tests of first germination count, germination, accelerated aging, electrical conductivity, emergence speed index and emergence. The use of packages with larger amount of seeds (big bag and polyethylene container) did not favor the maintenance of the pre-packing cooling temperature. The types of packages did not show significant differences in the seeds viability during storage, up to eight months, regardless the pre-packing cooling. The cultivars seeds showed different tolerance to storing, i.e. seeds of the cultivar TMG 1176 had lower storing potential comparing to the seeds from the cultivar SYN 9074.Index terms: germination, Glycine max, storability, storing conditions, vigor.Resfriamento pré-envase e tipo de embalagem na manutenção da qualidade fisiológica de sementes de soja ao longo do armazenamento RESUMO -O armazenamento de sementes sob condições adequadas reduz a velocidade do processo de deterioração de semente. O objetivo com o trabalho foi avaliar o resfriamento pré-envase e tipos de embalagem na manutenção da qualidade de sementes de soja ao longo do armazenamento. Utilizou-se o delineamento experimental inteiramente casualizado com quatro repetições, em arranjo fatorial envolvendo ou não o resfriamento da massa de sementes antes do envase, três tipos de embalagens (sacaria de papel multifoliado, big bag e contêiner em polietileno) e cinco épocas de armazenamento (0, 2, 4, 6 e 8 meses). A qualidade fisiológica foi avaliada por meio de testes de primeira contagem de germinação, germinação, envelhecimento acelerado, condutividade elétrica, índice de velocidade de emergência e emergência. O uso de embalagens com maiores quantidades de sementes (big bag e contêiner) não favoreceu a manutenção da temperatura do resfriamento pré-envase. Os tipos de embalagem não proporcionaram diferenças na viabilidade de sementes de soja ao longo do armazenamento, até oito meses, independente do resfriamento antes do envase. As sementes das cultivares apresentaram diferentes tolerâncias ao armazenamento, sendo que as sementes da cultivar TMG 1176 RR possuem menor potencial de armazenamento em relação às sementes da cultivar SYN 9074 RR.Termos para indexação: armazenabilidade, condições de armazenamento, germinação, Glycine max, vigor.

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Section: Germinationsupporting

confidence: 54%

Section: Accelerated Agingmentioning

confidence: 99%

Section: Accelerated Agingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pre-packing cooling and types of packages in maintaining physiological quality of soybean seeds during storage

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Zika virus incidence, preventive and reproductive behaviors: Correlates from new survey data

Quintana‐Domeque

Carvalho

Oliveira

2018

Economics & Human Biology

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During the outbreak of the Zika virus, Brazilian health authorities recommended that pregnant women take meticulous precaution to avoid mosquito bites and that women in general use contraceptive methods to postpone/delay pregnancies. In this article, we present new estimates on the Zika virus incidence, its correlates and preventive behaviors in the Northeast of Brazil, where the outbreak initiated, using survey data collected between March 30 and June 3 of 2016. The target population were women aged 15-49 in the capital cities of the nine states of the Northeast region of Brazil. We find that more educated women were less likely to report suffering from Zika (or its symptoms) and more likely to report having taken precaution against Zika, such as having used long and light-colored clothes, having used mosquito repellent or insecticides, having used mosquito protective screens or kept windows closed, and having dumped standing water where mosquitoes can breed. In addition, more educated women were more likely to report being informed about the association between Zika and microcephaly and to avoid pregnancy in the last 12 months. Finally, we also find that women who reported experiencing sexual domestic violence in the last 12 months were more likely to report suffering from Zika.

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Interferência do oxigênio na conservação das sementes de arroz

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Alterações isoenzimáticas em sementes de cultivares de soja em diferentes condições de armazenamento

Cited by 29 publications

References 15 publications

Pre-packing cooling and types of packages in maintaining physiological quality of soybean seeds during storage

Pre-packing cooling and types of packages in maintaining physiological quality of soybean seeds during storage

Zika virus incidence, preventive and reproductive behaviors: Correlates from new survey data

Interferência do oxigênio na conservação das sementes de arroz

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