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The interaction phenotype, seed size and temperature affect the germinative capacity of Agave cupreata

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Agave cupreata is an endemic species from western Mexico. It has been observed that there are two types of floral scapes in this species, based on its density, "hard" and "soft". The plants with hard scape yield more mezcal. Uncontrolled use of this agave has reduced its populations. In this work, the germination of A. cupreata seeds from the two types of plants was studied. Three factors were considered, each one with two levels: seed size (large and small), phenotype (soft and hard) and temperature (high, 23/19°C; and low, 20/16°C). The highest final germination (92.5%) was reached with large seeds from plants with hard scapes at high temperature. These factors must be considered for commercial propagation. However, all types of seeds and plants are important to keep genetic diversity. Harder scapes, smaller seed size and lower seed moisture content seem to be characteristics related to drier collecting sites.
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Document Type: Research Article

Publication date: December 1, 2017

This article was made available online on December 6, 2017 as a Fast Track article with title: "The interaction phenotype, seed size and temperature affect the germinative capacity of Agave cupreata".

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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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