English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A multilocational study was conducted to investigate the associated mycoflora of leafspot disease of sweet potato (Ipomoea batatas) and evaluate the extent of leafspot damage in selected farms in the central District of Delta State. The disease assessment in four locations of study (Abraka, Sapele, Oghara and Ughelli) was based on two criteria: Number of leafspot lesions per plant and percentage area of leaf surface covered by leafspot lesions. The result indicated that leafspot lesions were greatest on the older leaves and decreased progressively to the apex. The percentage leaf area damaged followed the same trend ranging from 1-48% in various locations. The leafspot disease in Sapele was significantly (P<0.05) greater than those found in Oghara, Abraka and Ughelli. The pathogen isolation study was conducted in the laboratory in potato Dextrose Agar medium with diseased leaf specimens from the study locations. Cochlobolus lunatus, Fusarium solani, Fusarium lateritium, Non-spolulating isolate EMI-E and Mucor hiemalis, F. luteus were found associated with leafspot disease of sweet potato at percentage ferequency of 57.71, 21.71, 10.86, 6.29 and 3.43 % respectively. C. lunatus, F. solani and F. lateritium were pathogenic. C. lunatus was the most frequent and pathogenic of all the isolates. The significance of these findings has a great implication on the food security and income of resource-limited families in the central district of Delta State.

Etiology and assessment of leafspot disease of sweet potato (Ipomoea batatas (L.) Lam) in selected farms in Delta State, Nigeria