บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Efficacy of foliar extracts against pre- and post-harvest diseases of sponge-gourd fruits.

Ahmad, S. K.; Prasad, J. S.;

Letters in Applied Microbiology Year: 1995 Vol: 21 Issue: 6 Pages: 373-375 Ref: 7 ref.

1995

บทคัดย่อ

Efficacy of foliar extracts against pre- and post-harvest diseases of sponge-gourd fruits.

 

The inhibitory potential of aqueous foliar extracts of Adhatoda vasica, Azadirachta indica, Catharanthus roseus, Datura fistulosa, Lantana camara, Murraya exotica [M. paniculata], Ocimum sanctum, Ricinus communis and Strychnos nux-vomica were evaluated against soft rot diseases of Luffa cylindrica [L. aegyptiaca] fruits caused by Helminthosporium spiciferum [Cochliobolus spicifer] and Fusarium scirpi. Conidial germination of F. scirpi and C. spicifer were reduced to c. 75% when their spores were treated with A. indica, C. roseus, D. fistulosa, L. camara, M. exotica and O. sanctum. Considerable reductions (50%) in mycelial DWs and colony diam. were recorded in liquid media containing (20%) aqueous extracts of C. roseus, D. fistulosa and M. exotica. Other extracts reduced the mycelial growth but to a lesser extent. Post-infection treatment of sponge-gourd fruits with the extracts of A. indica, L. camara, M. exotica, O. sanctum, D. fistulosa and C. roseus almost fully inhibited the spread of diseas

e. Treatment of fruits with A. indica and C. roseus before fungal infection reduced the spread of disease caused by both the pathogens, whereas M. exotica, O. sanctum and D. fistulosa reduced the spread of soft-rot caused by F. scirpi but not by C. spicifer.