PROMOTING ACCESS TO AFRICAN RESEARCH

Journal of Agriculture and Food Sciences

Log in or Register to get access to full text downloads.

Remember me or Register



DOWNLOAD FULL TEXT Open Access  DOWNLOAD FULL TEXT Subscription or Fee Access

Evaluation of Yield and Yield Attributes of Five Sweet Potato (Ipomoea batata (L)Lam) Varieties in Owerri - Imo State

HA Okorie, NC Ohazurike, TC Njoku

Abstract


Five sweet potato varieties (Ex –igbariam local, TIS 86/0356, TIS 8441, TIS 87/0087, and TIS 2532.OP.1.13) were evaluated for yield and agronomic performance in Imo State University Farm, Owerri. The experiment was laid out in a randomised complete block design with three replications. The planting density was 33,000 plants/ha and NPK (15:15:15) fertilizer was applied blanket at the rate of 100kg/ha. Significant (p= 0.05) differences were obtained in the performance of the varieties in fresh tuber yields, vigor at six weeks after planting, leaf area/plant, fresh biomass, tuber dry matter and biomass dry matter yields. Variety TIS 86/0356 gave significantly (p= 0.05) the highest mean fresh tuber yield of 7.38 t/ha and a significantly (p=0.05) high mean biomass dry weight of 3.08 t/ha, whereas the variety TIS 8441 gave the lowest mean fresh tuber and biomass dry matter yields of 1.28t/ha and 1.29t/ha, respectively. Variety TIS 86/0356 was therefore recommended for sweet potato growers in the region.

Key words: Sweet potato, varieties, yield evaluation.




http://dx.doi.org/10.4314/jafs.v10i1.4
AJOL African Journals Online