4.2 Article

Ethanol release as an indicator of seed vigour in radish, pepper, watermelon, aubergine, leek and onion seed lots

Journal

SEED SCIENCE AND TECHNOLOGY
Volume 49, Issue 1, Pages 1-6

Publisher

ISTA-INT SEED TESTING ASSOC
DOI: 10.15258/sst.2021.49.1.01

Keywords

controlled deterioration; seedling emergence; seed quality

Funding

  1. TUBITAK (The Scientific and Technological Research Council of Turkey) [:118O947]

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The study revealed that the relationship between ethanol release and seed vigour is species dependent. In some crops, ethanol release is positively or negatively correlated with controlled deterioration tolerance or seedling emergence.
Ethanol release was tested in relation to seed vigour measured by seedling emergence and controlled deterioration tolerance in radish, pepper, watermelon, aubergine, leek and onion seed lots. Ethanol release, measured with six lots from each species after four and eight hours at 40 degrees C and 30% seed moisture, was highly negatively correlated with controlled deterioration tolerance (45 degrees C, 48 hours, 20% seed moisture) in radish (r = 0.05, P < 0.05), with seedling emergence in watermelon (r = 0.99, P < 0.01) and to both traits in pepper (r = 0.87 to 0.94, P < 0.05), but not with any variable for aubergine and leek. One single case was significant between ethanol release after eight hours and controlled deterioration for onion seeds. Results indicate that there is a relationship between ethanol release and seed vigour, but this appears to be species dependent.

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