Control of storage diseases of yam (Dioscorea alata L.)
1996
Del Rosario, C.S. | Palomar, M.K. | Molato, A.B. (Visayas State Coll. of Agriculture, Baybay, Leyte (Philippines). Philippine Root Crop Research and Training Center)
The efectiveness of chemical, physical and mechanical control or a combination of these measures in minimizing storage rot disease of yam was determined using two storage methods. Storing under either modified pit or conventional method had no significant effect on rot of yam tubers. Different yam varieties varied in their response to different control measures. Kinampay responded positively to T2 (mechanical trimming and wood ash), T3 (mechanical trimming + fungicides + wood ash), T4 (fungicide alone) and T5 (hot water treatment); VU-2 to T2 nd T3 and Acc 007 to T5. However, untreated tubers of Kinampay and VU-2 had a lower severity of rot disease compared to those applied with the most effective disease control treatments. Higher percentage germination of tubers was likewise noted in T2, T3 and T6 (untreated). Significant interaction effects of variety, storage methods and control measures as well as their combination were also noted. Yam tubers were generally sensitive to curing, fungicide and hot water treatments
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