Conservação de sementes de ipê-amarelo (Tabebuia chrysotricha (Mart. ex A. DC.) standl.) em função do teor de água das sementes e da temperatura do armazenamento

Martins, Leila; Lago, Antônio Augusto do; Sales, Wilson Roberto Marques

doi:10.1590/s0101-31222009000200010

Cited by 12 publications

(9 citation statements)

References 5 publications

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“…Similar results were reported by Melchior et al (2006), who recommended storing C. adamantium seeds at humidity levels less than 30% in glass recipients at 25ºC. According to Martins et al (2009), the efficiency of packaging in maintaining the original seed moisture content supports the treatments identity related with seeds moisture content and allows for reliable comparisons between different storage treatments.…”

Section: Resultssupporting

confidence: 80%

Conservation of Campomanesia adamantium (CAMB.) O. berg seeds in different packaging and at varied temperatures

Scalon

Oshiro

Masetto³

et al. 2013

Rev. Bras. Frutic.

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-This article aims at evaluating the effects of different packaging and varied storage temperatures on the germination potential of seeds of Campomanesia adamantium Camb. O. Berg. The seeds were packaged in glass, aluminum foil and plastic containers, or maintained inside intact fruits at 5, 10 and 15 ºC during 0, 7, 14 and 21 days. After these periods the seeds were sown in Germitest® germination paper and maintained in incubation chambers at 25 ºC under constant white light for 42 days. Seed moisture contents were evaluated both before and after storage, as well as germination percentages, germination speed index, root and aerial portion of seedlings lengths, and total dry weights. All possible combinations of packing materials, temperatures and storage times were tested, with four repetitions of 25 seeds for each treatment. C. adamantium seeds showed initial water contents of 31.5%. Glass and aluminum packaging were efficient at maintaining the water content of the seeds, and provided greater germination speed index than the other packaging materials. Germination percentages, seedlings lengths and dry weights did not vary among the different temperatures tested. C. adamantium seeds can be stored for up to 21 days at temperatures between 5 and 15 ºC without altering their physiological quality. In terms of cost-benefit efficiencies, these seeds can be stored without significant damage for 21 days while still inside the fruits at temperatures of 5, 10 or 15 ºC. Index terms: guavira; Brazilian savannah; native fruit; Myrtaceae; seed longevity. CONSERVAÇÃO DE SEMENTES DE Campomanesia adamantium (CAMB.) O. BERG EM DIFERENTES EMBALAGENS E TEMPERATURAS

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Section: Resultssupporting

confidence: 80%

Conservation of Campomanesia adamantium (CAMB.) O. berg seeds in different packaging and at varied temperatures

Scalon

Oshiro

Masetto³

et al. 2013

Rev. Bras. Frutic.

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“…DC.) stored, Martins et al (2009) found that extreme levels of water (21.1 and 8.5%) caused immediate negative effects.…”

Section: Results and E Discussionmentioning

confidence: 99%

Physiological quality seeds Clitoria fairchildiana R. A. howard during storage

Alves¹,

Alves²,

Santos-Moura³

2015

Biosci. J.

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ABSTRACT:The species Clitoria fairchildiana R. A. Howard, belonging to the family Fabaceae is a fastgrowing ornamental tree, with potential for use in reforestation for heterogeneous vegetation reconstruction and recovery of degraded areas. Storage is aid in quality programs, which allows the preservation of the quality of seeds, however, the water content of the same is a crucial factor in its preservation, because it is high may cause deterioration and death of seeds stored. In this way the objective to evaluate the germination and vigor of seeds of C. fairchildiana stored with different levels of water. That's way was an experiment in completely randomized design in a factorial 5 x 7 (water levels and periods of storage). Before storage for 20, 40, 60, 80, 100 and 120 days, the seeds were subjected to drying in an oven at 40 °C for 0, 6, 12, 18 and 12:0 am, to obtain the following water levels: TA 1 = 19.05, TA 2 = 13.60, TA 3 = 11.99%, TA 4 = 10.51% and TA 5 = 8.70%, respectively. After each interval of storing seeds were subjected to the following evaluations: determination of the moisture content, germination and vigor tests (emergency, first count of germination and emergence and germination speed index and emergence, seedling dry mass and length). The reduction of water content of seed C. fairchildiana to 10.5 and 8.7% (TA 4 TA 5 and, respectively) resulted in greater preservation during storage, giving Orthodox behavior for stand drying until it reaches the water content of around 8%.

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“…Os valores observados no grau de umidade das sementes de T. serratifolia durante o armazenamento são, segundo Miyasaki e Cândido (1978), os ideais para a conservação de sementes desse gênero; visto que, por serem ortodoxas, teores de água menores causam diminuição da atividade metabólica das sementes, o que prolonga sua viabilidade. Para T. chrysotricha, Martins et al (2009) observaram que a conservação das sementes é favorecida pelo armazenamento com teores de água em torno de 11,9%.…”

Section: Resultsunclassified

Alterações fisiológicas e bioquímicas durante o armazenamento de sementes de Tabebuia serratifolia

Silva¹,

Carvalho

Nery

et al. 2011

CERNE

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RESUMO:A espécie Tabebuia serratifolia (ipê-amarelo) é utilizada para refl orestamento de áreas degradadas, além de possuir propriedades medicinais e madeireiras. Sua propagação é por sementes, as quais podem apresentar problemas de conservação, como alterações no seu potencial fi siológico ao longo do armazenamento. Para investigar a ocorrência dessas alterações fi siológicas e bioquímicas de sementes de ipê-amarelo, durante o armazenamento sob condições de câmara fria e ambiente, foram realizadas avaliações trimestrais da germinação, viabilidade, vigor, teor de água, de polifenóis e proteínas resistentes ao calor, em sementes armazenadas por doze meses. Para sementes armazenadas em câmara fria foram observados resultados superiores de germinação e vigor quando comparados com os obtidos na condição ambiente. Ocorreram decréscimos nos teores de polifenóis ao longo do armazenamento, já as proteínas resistentes ao calor mantiveram a mesma intensidade de bandas. Na condição ambiente, a germinação torna-se nula aos nove meses; enquanto que, em câmara fria, as sementes permanecem viáveis durante 12 meses de armazenamento.Palavras-chave: Ipê-amarelo, Handroanthus serratifolius, longevidade. PHYSIOLOGICAL AND BIOCHEMICAL PROPERTIES CHANGES DURING STORAGE OF Tabebuia serratifolia SEEDS ABSTRACT : The species Tabebuia serratifolia (ipê amarelo) is used for reclamation of degraded areas, in addition it

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Conservação de sementes de ipê-amarelo (Tabebuia chrysotricha (Mart. ex A. DC.) standl.) em função do teor de água das sementes e da temperatura do armazenamento

Cited by 12 publications

References 5 publications

Conservation of Campomanesia adamantium (CAMB.) O. berg seeds in different packaging and at varied temperatures

Conservation of Campomanesia adamantium (CAMB.) O. berg seeds in different packaging and at varied temperatures

Physiological quality seeds Clitoria fairchildiana R. A. howard during storage

Alterações fisiológicas e bioquímicas durante o armazenamento de sementes de Tabebuia serratifolia

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