Seed abnormalities and associated mycoflora of rain-fed wheat (Triticum aestivum L.) in South Western Nigeria

The health of wheat seeds produced under rain-fed conditions in South Western Nigeria was investigated. There were more abnormal (1.0 - 79.7%) than normal (10.7 - 28.7%) seeds. Forms of seed abnormality observed include wrinkled seeds (64.2 - 79.7%), entirely discoloured seeds (1.0 - 12.5%), seeds w...

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Bibliographic Details
Published in:African journal of biotechnology 2005-07, Vol.4 (7), p.672-675
Main Author: Enikuomehin, O A
Format: Article
Language:English
Subjects:
Fusarium graminearum
Helminthosporium
Triticum aestivum
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Summary:The health of wheat seeds produced under rain-fed conditions in South Western Nigeria was investigated. There were more abnormal (1.0 - 79.7%) than normal (10.7 - 28.7%) seeds. Forms of seed abnormality observed include wrinkled seeds (64.2 - 79.7%), entirely discoloured seeds (1.0 - 12.5%), seeds with discoloured embryo (germ) (1.2 - 1.5%) and brush (0.25 - 1.25%) ends. Fusarium graminearum and Helminthosporium sativum were associated with all seeds, but at higher levels in abnormal (F. graminearum, 0.5 - 78.5%; H. sativum, 2.5 - 86.0%) than normal seeds (F. graminearum, 2.25%; H. sativum, 0.75%). Viability of abnormal seeds was 1.50 - 32.0% which is much lower than the 88.0% germination of normal seeds.
ISSN:1684-5315
1684-5315
DOI:10.5897/AJB2005.000-3123