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

Inert matter with rice and wheat seeds is source of inoculum of plant pathogens

Buy Article:

$35.00 + tax (Refund Policy)

Presence of fungi in inert matter of rice and wheat seed samples were investigated. Sixty seven seed samples representing three rice and one wheat cultivars collected from nine seed processing centers and four contact grower zones in 13 locations of Bangladesh were analyzed for the presence of inert matter and infestation of seeds by fungi. The inert matter separated from seeds was grouped into three categories: I, broken seeds, husk and awn; II, sand and soil and III, pieces of brick, stone, fiber, hair and insects. Fungi associated with inert matter was detected following centrifugation of inert matter and subsequently plating on Agar plates both the supernatant and the sediment. Inert matter accounted for 0.28% of total weight of rice seed samples with 60% in Group I category and fungi detected were Bipolaris oryzae, Fusarium spp., Aspergillus flavus, A. niger, A. ochraceus and Penicillium sp. Upon analyses by standard Blotter Method, samples of rice seed yielded B. oryzae, Pyricularia oryzae, Alternaria padwickii and Fusarium spp. with variable frequencies. Inert matter in wheat seeds accounted for 0.294% of total weight of seed samples analyzed. Fungi detected in inert matter of wheat seeds included Fusarium moniliforme, B. sorokiniana, A. flavus, A. niger, A. candidus, A. ochraceaus and Panicillium sp Similarly, samples of wheat seeds analyzed by the Blotter Method yielded the same fungi but in different frequencies. Also like rice, Group I category of inert matter dominated the wheat seeds samples and this component of the inert matter carried the important pathogenic fungi B. oryzae and B. sorokiniana respectively. The number of fungal colonies distinctly varied among the three categories of inert matter and was positively correlated with the total weight of inert matter. Germination of seeds was negatively correlated to seed infection and significantly affected by seed infection by Bipolaris sp.
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, 2005

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