Influência de diferentes períodos de secagem na qualidade fisiológica de sementes de Tapirira guianensis Aublet

Santos-Moura, Sueli da Silva; Alves, Edna Ursulino; Bruno, Riselane de Lucena Alcântara; Moura, Mácio Farias de; Gondim, Patrícia Sousa de Sales

doi:10.1590/s0100-29452012000200010

Cited by 4 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In drying conditions, the seeds of Blepharocalyxs alicifolius and Casearia decandra were sensitive to moisture reduction between 29% and 25% and lost viability around 14% and 8% of humidity, respectively, in relation to physiological changes during drying of the seeds, it was observed a decrease of viability and vigor from 25% of humidity (Rego et al, 2013). Santos-Moura et al (2012) verified that the drying at 40 ºC of the seeds of Tapirira guianensisAubl. reduced in the first germination count, the maximum percentages (62%) occurred in the seeds that were not dehydrated (zero hour of drying), not being verified germination from the 12 hours of drying, noting that the reduction of the water content affected negatively the vigor, determined by the first germination count, as observed for the seeds of P. aquatica.…”

Section: Discussionmentioning

confidence: 62%

See 1 more Smart Citation

Desiccation of Pachira aquatica Aubl. Seeds

Lima¹,

Gonçalves²,

Viana³

et al. 2018

JAS

View full text Add to dashboard Cite

The conservation of seed quality during storage is important to perform the maintenance and conservation of germplasm banks. Several native species of Brazil are intolerant to desiccation to desirable levels for conservation during storage is necessary to develop specific technologies for their conservation. The objective of this research was to evaluate the physiological quality of Paquira aquatica seeds submitted to drying periods. The study was carried out using seeds of P. aquatica dried at a temperature of 35 ºC, the following exposure times: 0 (no drying), 24, 48, 72 and 96 hours. Before and after each period of drying samples for the evaluations, the data were submitted to analysis of variance and regressionat level of 5%. The seeds of P. aquatica were dispersed with very high water content and a small reduction in its physiological value agrees quality, allowing the seeds to characterize this as a recalcitrant species. The drying temperature is 35 ºC until the viable 24 hours after this period the water content of seed reduced from 55% to 43%, which was considered the critical level for desiccation of seeds of P. aquatica. Because it reduces the values of first count, germination, rate of germination and growth of seedlings.The drying temperature the 35 ºC until the viable 24 hours, whit small reduction in its physiological quality seed P. aquatica.

show abstract

Section: Discussionmentioning

confidence: 62%

“…One of the characteristics of the recalcitrant seeds is to have a high water content at the time of dispersion, because unlike the orthodox seeds, the recalcitrant seeds do not undergo a thorough desiccation process during maturation and/or predating the dispersion (Santos-Moura et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Desiccation of Pachira aquatica Aubl. Seeds

Lima¹,

Gonçalves²,

Viana³

et al. 2018

JAS

View full text Add to dashboard Cite

show abstract

Challenges in the Restoration of Quartzitic and Ironstone Rupestrian Grasslands

Fernandes

Toma

Angrisano

et al. 2016

Ecology and Conservation of Mountaintop Grasslands in Brazil

View full text Add to dashboard Cite

Drying on the germination and vigor of Crataeva tapia L. seeds

et al. 2017

Self Cite

View full text Add to dashboard Cite

Crataeva tapia L. is a fruit native to the Brazilian savanna, the Caatinga, and is used in the production of soft drinks and other beverages. Given the importance of this species and the lack of knowledge about its seeds, this research aimed to evaluate the physiological quality of C. tapia L. seeds subjected to different environments and drying periods. Seeds were dried for the following time periods: 0 (no drying), 24, 48, 72, 96, and 120 hours, in the laboratory environment (25°C and 90% RH) and in a greenhouse (30°C and 80% RH). After the drying period, seeds from each of the treatments were used for determining the water content, germination, and vigor (using tests for emergence, first count of germination and emergence, rate of germination and emergence, length, and seedling dry weight). The experimental design was completely randomized and a factorial 2×6 scheme (local environment × drying periods) was used with four replicate sets of seeds. The data were subjected to analysis of variance and polynomial regression using quadratic models. The germination and seed vigor reduced as the drying periods increased. For optimum results, the seeds of C. tapia L. must be dried in the laboratory for a period of 48 hours. In addition, their desiccation resistance was classified as intermediate.

show abstract

Influência de diferentes períodos de secagem na qualidade fisiológica de sementes de Tapirira guianensis Aublet

Cited by 4 publications

References 12 publications

Desiccation of Pachira aquatica Aubl. Seeds

Desiccation of Pachira aquatica Aubl. Seeds

Challenges in the Restoration of Quartzitic and Ironstone Rupestrian Grasslands

Drying on the germination and vigor of Crataeva tapia L. seeds

Contact Info

Product

Resources

About