Effect of foliage removal on root yield, dry matter, and proximate composition of five sweetpotato genotypes in Ghana. (64)
Keywords:Sweetpotato genotypes, Foliage removal, Root yield, Nutrient content, Ghana
AbstractPreliminary studies were conducted in Ghana in 1995 to identify high-yielding sweetpotato genotypes suitable for foliage removal without reducing root yield. Five genotypes were selected based on yield performance and nutrient content. These genotypes were ITS2, 91/198, and 83/123 which are improved genotypes from the University of Ghana, and ‘Agbeyeye’ and 'Damadami' which are two local genotypes currently cultivated by the farmers in the Akatsi District. These genotypes were used to test the effect of foliage removal on root yield, dry matter, and proximate composition of sweetpotato in two villages in the Akatsi District of the Volta region of Ghana. Results from the data indicated that there were significant differences between cutting treatments. However, genotypes tested showed variation in yield response for all root grades. There were significant genotypic differences as well as yield differences in location and in proximate composition. 'Agbeyeye' and 'Damadami' showed a better adaptation (based on visual observations), higher root yields, and proximate compositions and, therefore, would be ideal for consideration for foliage removal.