Skip to main content
padlock icon - secure page this page is secure

The use of a shortened controlled deterioration vigour test in predicting field emergence and longevity of onion seed lots

Buy Article:

$35.00 + tax (Refund Policy)

This work evaluated the possibility of shortening the duration of the controlled deterioration test and compared the ability of the shortened test and the routine CD (controlled deterioration) and AA (accelerated aging) vigour tests to identify differences in vigour of onion seed lots. The CD test was modified, so that seed moisture raising, equilibration and ageing were completed in a day, and in the subsequent germination test, radicle emergence following ageing was assessed regularly over the first 4 days. The routine CD (45°C, 20% m.c. for 24 h) and AA (41°C 72h) tests were also conducted. Emergence was assessed in the field at two sowing dates and seed longevity was determined following storage at 5 and 25°C for 9 months at 6 and 9% seed moisture content (m.c.) Both the CD and the shortened CD tests (SCD) were closely correlated with field emergence (CD, r = 0.91-0.92, p < 0.01; SCD 0.85 - 0.93, p < 0.01 - 0.05) and mean emergence time (CD, r = 0.77-0.90, p < 0.01-0.05; SCD, r = 0.75 – 0.97, p < 0.05 – 0.001). Germination fell during storage only in seeds held at 9% m.c. at 5 and 25°C and both the CD and SCD tests clearly identified seed lots that showed a larger decline in germination. The standard germination test was unrelated (p > 0.05) to the seedling emergence in the field and longevity. These results indicate that a shortened controlled deterioration test of only 5 days for onion seeds can identify differences in seed lot vigour.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: April 1, 2011

More about this publication?
  • 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.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Membership Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more