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Open Access Developing improved methods for cost effective viability monitoring of Aeschynomene abyssinica and A. americana

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This article is Open Access under the terms of the Creative Commons CC BY-NC licence.

Aeschynomene americana and A. abyssinica are forage legumes that are highly valuable as livestock feed and for soil fertility improvement. Hard-seededness is a form of physical dormancy imposed by a hard seed coat and is a common phenomenon in legume seeds. We assessed dormancy breaking treatments in relation to the time and cost of performing the assessments with the objective of developing improved methods for cost effective viability monitoring in these species. Results show that scarification of seeds with a hot wire, incubating them at 25 or 30°C, and germinating them on top of paper were the most reliable and cost-effective methods for overcoming seed dormancy for viability monitoring in Aeschynomene abyssinica and A. americana. However, the species differed in their response to the dormancy breaking treatments, with no significant differences in A. americana for all the factors except accession, suggesting that efficient dormancy breaking methods in Aeschynomere is species-specific.

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Keywords: AESCHYNOMENE ABYSSINICA; AESCHYNOMENE AMERICANA; FORAGE GERMPLASM; SEED DORMANCY BREAKING METHODS; VIABILITY MONITORING

Document Type: Research Article

Publication date: August 1, 2020

This article was made available online on April 24, 2020 as a Fast Track article with title: "Developing improved methods for cost effective viability monitoring of Aeschynomene abyssinica and A. americana".

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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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