Five cultivars of sweet potato (Hapur local, Indonesia Boger (IB) 97-6/7, IB 12/24, IB 12/7 and CIP SWA-4) were grown at ICRISAT, India, on red soil with supplementary irrigation. Agronomical observations were carried during the rainy and post rainy season 2005/2006. Season had a significant effect on biomass yield. Across seasons dry vine yields (t/ha) ranged from 3,6 in IB 97 12/7 to 26,4 in CIP SWA-4 (LSD 14,3) and dry tuber yields ranged from 8,6 in CIP SWA-4 to 13,0 in IB 97 12/7 (LSD 4,5). Dry total biomass yield ranged from 16,6 in IB 97 12/7 to 35,0 in CIP SWA-4 (LSD 14,8). Vine to tuber ratio varied cultivars dependent from 70 – 30%. Silages were prepared, from vine, tuber and total biomass. All silages had a pH within 3.6 to 4.2 and a good smell and a typical fermentative pale brown color.
HOW TO CITE
Reddy, R., Sreekanth, A., Chung, I.B., Ravi, D., Khan, A.A. and Blummel, M. (ed) Variations in vine to tuber ratios and total biomass yield in five cultivars of sweetpotato (Ipomoea Batatas (L) Lam) grown for silages for pigs. International Potato Centre, Pp 1-4.