Disease and other problems affecting sugar cane variety change in Trinidad and Tobago, 1975 to 1989
1991
Phelps, R.H. | Donelan, A.F. (Caroni Research Station, Carapichaima (Trinidad and Tobago))
A number of characters were identified as having an influence on the degree to which sugar cane varieties do not find acceptance for commercial production. Among the more important of these characters were: arrowing of canes; high fibre content resulting in excessive bagasse; relatively slow early growth causing higher weed control costs; thin canes in ratoons; failure to give expected yields; and varying levels of susceptibility to important diseases. Susceptibility to smut, rust and yellow spot diseases can vary with location, weather with proximity to more susceptible varieties. Under the influence of such external factors the rating of any one variety could vary from resistant to merely moderately resistant. In some instances there was clear evidence of recovery, and eventual good yield, following marked symptoms of smut expressed under the stress of a severe and prolonged dry season.
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