International Journal of Biochemistry and Biotechnology
International Journal of Biochemistry and Biotechnology ISSN 2169-3048 Vol. 9 (9), pp. 001-004, September, 2020. © International Scholars Journals
Full Length Research Paper
Seed abnormalities and associated mycoflora of rain-fed wheat (Triticum aestivum L.) in South Western Nigeria
O. A. Enikuomehin
Department of Crop Protection, University of Agriculture, P. M. B 2240, Abeokuta, Nigeria.
Accepted 14 May, 2020
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.
Key words: Fungi, seed health testing, seed discolouration, wheat.
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