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Seed viability and vigour of two nanche species (Malpighia mexicana and Byrsonima crassifolia)

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This research aimed to determine the optimal pre-treatment, tetrazolium concentration and staining times to evaluate the biological condition of the embryos in two nanche species, Malpighia mexicana, collected in Matatlan, and Byrsonima crassifolia, collected from Tehuantepec, Oaxaca. The fruit pulp was removed and the seeds were washed and dried. The embryos were placed in 0.1 or 1% tetrazolium for 18, 24 or 48 hours at 30°C. A random design was used with 12 treatments consisting of four replications of 25 embryos each. Viability and vigour were evaluated based on embryo colour patterns. M. mexicana seeds showed 90% viable vigorous embryos when pre-treated for 24 hours and stained with 0.1% tetrazolium for 48 hours, whereas B. crassifolia seeds showed 90% with 1% tetrazolium for 48 hours. The tetrazolium test allowed for assessment of embryo vigour by the pattern differences and colour intensity obtained.
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Document Type: Research Article

Publication date: April 1, 2016

This article was made available online on February 16, 2016 as a Fast Track article with title: "Seed viability and vigour of two nanche species (<i>Malpighia mexicana</i> and <i>Byrsonima crassifolia</i>) ".

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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