Chemical and hot-water treatments to improve the survival of yam minisetts
1998
Kenyon, L. (Univ. of Greenwich, Maritime (U.K.). Natural Resources Institute) | Nwankitiand, A. | Ekefan, E. | Peters, J.
Tubers of white yam (Dioscorea rotundata) and water yam (D. alata) were cut to produce minisetts each weighing about 25 g. They were treated by either dipping in a fungicide (Benomyl, thiabendazole, or iprodione) solution for 1 h, or immersing in water at 50 deg.C for 5, 10, or 20 min. They were allowed to cure overnight and then planted according to a randomized complete block design at several sites in Nigeria, and assessed regularly to determine the effect of the treatments on minisett survival, plot yield, and anthracnose disease development. The hot water treatment for 20 min at 50 deg.C reduced the survival of D. alata at all sites. Treatment for more than 5 min killed D. rotundata. The results indicated that the fungicides were generally better at increasing the survival rate of both Dioscorea species than the hot water treatments.
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