Abstract:
In a comparative study dry matter partitioning, dry matter content, dry weight and dry matter yield of
tuberous roots of five exotic genotypes and five local varieties of sweet potato were evaluated. Total fresh
weight and total dry matter weight increased with plant age. Local varieties produced comparatively
higher fresh weight than dry weight, whereas exotic genotypes produced lower fresh weight but higher dry
weight. The highest fresh weight (1950.90 g) was found in Kamalasundari and dry weight (525.91 g) in
JB. Deposition of dry matter in leaves, vines and storage roots increased with plant ages except in
absorbing fibrous roots. Dry matter content and dry matter yield of storage roots also increased with days
gone. The highest amount (64.80%) of dry matter deposited to storage roots of J9 followed by JB
(62.90%) and Kamalasundari (60.31%), whereas the lowest amount (43.93%) was recorded in Daulatpuri.
TIle highest dry matter content (37.46%) in storage root was recorded in J8 followed by J7 (34.32%) and
JB (33.20%) and the lowest (18.46%) in Kamalasundari. The maximum dry weight as well as dry matter
yield was obtained in JB followed by J9 and J8. The minimum dry weight and dry matter yield were found
in Daulatpuri. The exotic genotypes showed better performance than the local varieties tested in respect of
yield attributes and JB showed the best performance in producing dry matter yield (18.38 t/ha)
