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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

r Frequent field observations made in the vineyards of Jaffna showed that the disease is confined to the rainy season of the year. The developmeht of symptoms on various parts of grape vine has been observed. Invasion of the host tissue was accompanied by changes in colour and appearance of the affected omon. Sporangia of Plmmopa~a vificola germinated after 18 h of incubation at 2.5' * IOC and 100% r h and their single thick germ tubes penetrated the stomata by about 48 h. Penetration strictly occurred through stomata. Following penetration the fungus formed intercellular hyphae and colonised the spongy and pallisade parenchyma cells of the host. The external appearance of sporulating structures took about five days and this occurred stricdy through the stomata. The lesions remained productive upto the ninth day. during incubation.

Some observations on the downy mildew disease of grape vine caused by <em>Plasmopara viticola</em> in Jaffna