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

Hydrotime analysis for determination of seed vigour in cotton

Buy Article:

$35.00 + tax (Refund Policy)

This research was conducted to test whether hydrotime parameters are related to germination, emergence and early seedling vigour in cotton with the aim of determining whether hydrotime analysis might be used as a vigour test. Three experiments were carried out: (1) a germination test to obtain hydrotime parameters; (2) a laboratory seedling growth experiment; and (3) a greenhouse experiment. Relationships were examined between hydrotime parameters and early growth parameters obtained from the laboratory and greenhouse experiments, for each of three water potentials separately and for the overall mean. Results showed that there was wide variation among lots for hydrotime and early growth parameters. The hydrotime constant for germination, H, ranged from 14.7 to 105.5 MPa-hours. The median base water potential, ψ b(50), varied from -1.15 to -0.48 MPa and σ ψ b ranged from 0.23 to 0.72. There was no relation between H or σ ψ b and seedling emergence percentage. Therefore, they cannot be applied as a seed vigour test in cotton. The ψ b(50) was the sole parameter acceptable for predicting emergence potential of cotton seed lots. Seed vigour of cotton can be classified based on ψ b(50) as low (ψ b(50) > -0.689MPa), intermediate (ψ b(50) -0.689 to -0.815MPa) and high (ψ b(50) < -0.815MPa).
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: August 1, 2014

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