Skip to main content

Germination of leucaena and Rhodes grass seeds in saline and alkaline conditions

Buy Article:

$30.00 plus tax (Refund Policy)

Saline and alkaline groundwater can be used for irrigation of pastures. Using leucaena (Leucaena leucocephala cv. Tarramba) and Rhodes grass (Chloris gayana cv. Topcut), the effects of saline (electrical conductivity [EC], 0-20 dS m-1), sodic (sodium absorption ratio [SAR], SAR 5-30), and alkaline (0-855 mg L-1 CaCO3 equivalent) water on seed germination was investigated, with seedling root growth also measured in leucaena. For leucaena, germination decreased at EC > 15 dS m-1, but SAR at values of up to 30 had no effect on germination. Alkalinity was found not to influence germination of leucaena (up to 855 mg L-1 CaCO3 equivalent). Germination of 'Topcut' Rhodes grass was not reduced significantly with any EC, SAR or alkalinity treatment used in this study. Root growth in leucaena was inhibited by salinity > 5 dS m-1, SAR > 5 and alkalinity (as CaCO3) > 24 mg L-1. It was found that the inhibition of root elongation of leucaena at high SAR values could be attributed to Ca deficiency, i.e. activity of Ca2+ at the root cell plasma membrane. Germination of leucaena and Topcut Rhodes grass was highly tolerant of the salinity and alkalinity found in alkaline and saline groundwater (including water extracted from coal seams) when used for irrigation.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2016-12-01

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