Integrated Harvesting Techniques for African Egg Plant (Solanum macrocarpon L., cv. Igbagba)
David O. Ojo *
NIHORT, PMB 5432, Idi Ishin, Ibadan, Oyo State, Nigeria.
Oladiran Olaleye
NIHORT, PMB 5432, Idi Ishin, Ibadan, Oyo State, Nigeria.
Olakunle O. Alabi
NIHORT, PMB 5432, Idi Ishin, Ibadan, Oyo State, Nigeria.
Joseph T. Atobatele
College of Staten Island, 2800 Victory Boulevard, Staten Island, New York 10314 718.982.2000, United States of America.
Jonas N. Chianu
Tropical Soil Biology and Fertility Institute of Centro Internacional Agricultura de Tropicale (TSBF-CIAT), World Agroforestry Centre (ICRAF), Nairobi, Kenya.
*Author to whom correspondence should be addressed.
Abstract
This study elucidated the influence of harvesting height and frequency on concurrent seed and shoots production of the African Eggplant, Solanum macrocarpon L., cv. Igbagba/Igbo. The overall aim was to use the outcome to make recommendations that would enable African resource poor farmers secure the much needed increase in income for improved livelihoods. The study was carried out between April to November 2004 on the National Horticultural Research Institute (NIHORT) Ibadan, Nigeria commercial vegetable production fields. Result shows that harvesting at 0.08 m above ground level was optimal and significantly highest for leaf, stem, shoot, seed and total yields except at 0.12 m above ground level for seed production. The result of financial profitability analysis shows that harvesting 0.08 m above ground level and fortnightly was most profitable for leaf, shoot and total yields compared to all the treatment combinations. Harvesting 0.12 m above ground level and monthly, however, was most profitable for seed production when compared to all treatments combinations. The study concluded noting that integrated harvesting techniques for shoot (leaf + stem) and seed production proved economically viable and optimize resource use efficiency better than growing S. macrocarpon sole either for shoot or seed.
Keywords: African egg plant, harvesting techniques, financial profitability, smallholder farmers, Nigeria