Sensibilidade de sementes de Cupuí (Theobroma subincanum) à redução do grau de umidade e a exposição à baixa temperatura

Nascimento, W. M. O. do; Carvalho, J. E. U. de

doi:10.1590/s0100-29452012000300034

Cited by 6 publications

(6 citation statements)

References 6 publications

(2 reference statements)

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“…(Moura et al, 2015) and Theobroma subincanum Mart. (Nascimento and Carvalho, 2012) includes sand, however, the temperature of 25 °C is the most favorable to the percentage rate and speed of germination of these plant species. It can be predicted that the knowledge of the conditions that provide a fast and uniform germination of the H. sabdariffa var.…”

Section: Resultsmentioning

confidence: 99%

Substrates and Temperatures in the Germination of Hibiscus sabdariffa L. Seeds

Gomes¹,

Bruno²,

Melo³

et al. 2018

JAS

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Vegetable biodiversity in Brazil accounts for almost 67% of the plants on the planet, which are part of studies with focus on determinants of food security and access to adequate and healthy food, while preserving natural resources. Studies indicate that Hibiscus sabdariffa L. is one of the most studied unconventional food crops because of its nutraceutical quality as antioxidant and prevention of hypertension and cancer. Although relevant, substrate and temperature information for seedling production of this species are scarce. Thus, the aim of this study was to evaluate the best substrate and temperature for the vigor and germination test of H. sabdariffa seeds of the Talo Roxo and Rubra varieties. The experiment was laid out in a randomized complete design, in a 7 × 5 factorial arrangement, consisting of the combinations of seven substrates (paper towel, filter paper, vermiculite, between sand, on sand, plantmax® and compost) with five temperatures (20, 25, 30, 35 and 20-30 °C), with four replicates with 50 seeds each. The following variables were evaluated: germination, germination speed index, seedling length and dry mass. For germination and vigor tests of Hibiscus sabdariffa var. Talo Roxo seeds the paper roll substrate is recommended at temperatures of 25 or 35 °C and for var. Rubra seeds, plantmax® at 25 °C and plantmax® and vermiculite at temperatures of 25 or 20-30 °C, respectively.

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Section: Resultsmentioning

confidence: 99%

Substrates and Temperatures in the Germination of Hibiscus sabdariffa L. Seeds

Gomes¹,

Bruno²,

Melo³

et al. 2018

JAS

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“…However, the sensitivity to low temperature of storage was also reported by Nascimento et al (2012), who verified, for 'cupuí' seeds, loss of viability when exposed to a temperature of 7ºC for 8 hours.…”

Section: Sowing and Storage Testmentioning

confidence: 53%

Advances in the Propagation of Rambutan Tree

et al. 2017

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-The reality of Brazilian fruit farming is demonstrating increasing demand for sustainable information about native and exotic fruit, which can diversify and elevate the efficiency of fruit exploitation. Research on propagation of fruits tree is very important so that it can provide a protocol for suitable multiplication of this fruitful. Due to the great genetic diversity of rambutan plants, it is recommended the use of vegetative propagated plants. This research aimed to evaluate the propagation of rambutan by cuttings, layering and grafting, as well as seed germination and viability without storage. The results of this research indicate that this species can be successfully propagated by layering, grafting and seeds. We also observed that the germination percentage of seeds kept inside the fruits for six days were not influenced by the different substrates used in this experiment. Index terms: Nephelium lappaceum L, grafting, layering, cuttings.AVANÇOS NA PROPAGAÇÃO DA RAMBUTEIRA RESUMO -A realidade da fruticultura brasileira tem demostrando crescente demanda de informações sustentáveis sobre frutíferas nativas e exóticas, as quais possam diversificar e elevar a eficácia da exploração de frutas. Pesquisas em propagação em frutíferas tem grande importância para que se possa fornecer um protocolo para adequada multiplicação dessa frutífera. Devido a grande diversidade genética das plantas de rambutan, para estabelecimento de pomares comerciais da cultura, recomenda-se o uso de plantas propagadas vegetativamente. Este trabalho teve como objetivo avaliar a propagação de rambuteira por estaquia, alporquia, enxertia, bem como a germinação por sementes e a viabilidade no armazenamento. Pelos resultados dos trabalhos nota-se que a frutífera pode ser propagada por alporquia, enxertia e por sementes, e se existir a necessidade de armazenamento de sementes que não ultrapasse um período de seis dias e sejam mantidas dentro dos frutos, não houve diferenças consideráveis na germinação nos substratos testados neste experimento. Termos para indexação: Nephelium lappaceum L, enxertia, alporquia, estaquia.

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“…Segundo Fajardo et al (2011), estudando a sensibilidade a secagem nos genótipos UF667 e UF668 (Trinitario), Pound e EET 48 (Forasteros) e Carmelo (Criollo), concluíram que a sensibilidade a dessecação varia entre os genótipos das três origens genéticas a 30%, contudo não toleram a secagem a 20%. Com espécies do gênero Theobroma este comportamento também é similar, ficando os teores críticos entre 30% e o letal cerca de 15% (Cruz & Cicero 2008, Nascimento & Carvalho 2012. Fig.…”

Section: Resultsunclassified

Ecofisiologia da germinação dos genótipos de Theobroma cacao L.

Lavanhole

Arantes

et al. 2019

Iheringia Ser Bot

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Sensibilidade de sementes de Cupuí (Theobroma subincanum) à redução do grau de umidade e a exposição à baixa temperatura

Cited by 6 publications

References 6 publications

Substrates and Temperatures in the Germination of Hibiscus sabdariffa L. Seeds

Substrates and Temperatures in the Germination of Hibiscus sabdariffa L. Seeds

Advances in the Propagation of Rambutan Tree

Ecofisiologia da germinação dos genótipos de Theobroma cacao L.

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