Mature and yield traits of hybrid maize have a genetic and phenotypic link (Zea mays L.)
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Vegetables are raised for both human and animal consumption largely because of their minerals, vitamins and fibre contents. Amaranthus, a typical example of a leafy vegetable, are raised for human consumption (Oke, 1980; Oliveira and de Carvalho, 1975), forage crop (Fitterer et al., 1975), Ornamental purposes (Iturbide and Gispert, 1994) and pigment production (Piatelli et al., 1969). Kaul and Egbo (1985) noted that the history of harvesting crops is as old as the history of human itself. This important operation is labour consuming and its cost has gone up considerably in the recent years due to increase in the area of cultivation and unavailability of labour (Ojha and Michael, 2003). Cho et al. (2002) reported that researchers in rural development administration investigated input labour per hour of *Corresponding author email: topeleye@yahoo.com greenhouse lettuce in each stage of task and reported that 47% of the total working hours applied to harvesting. Buchmaster (2006) also asserted that harvesting machinery and associated labour costs is often the single largest contributor to the cost of producing and delivering forages. Acquiring western designed harvester which could be adapted for harvesting amaranthus is practically impossible because of the high cost of the machine, sophistication of its operation and maintenance; its suitability to the local terrain and the fragmentation (farm holdings) of our farming land.