International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 7, July 2017

International Journal of Science and Technology


Effect of Different Water Application Schedules on the Growth and Yield of Onion (Allium Cepa L.) at Golinga Irrigation Scheme in the Tolon District of Northern Region, Ghana

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Author Abdul-Ganiyu Shaibu, Shaibu Alhassan, Thomas Apusiga Adongo
Volume No. 5
Issue No. 9
Issue Date September 01, 2015
Publishing Date September 01, 2015
Keywords Different water application schedules, yield of onion, crop evapotranspiration (ETc), crop water productivity


Abstract

In order to study the effect of different water application schedules on growth and yield of onion (Allium cepa L.), a field experiment was conducted at Golinga Irrigation Scheme. The experiment was arranged in a Randomized Complete Block Design (RCBD). Four treatments namely; T1 (adlib application by farmers), T2 (100% of the daily ETc applied only in the morning at each growth stage), T3 (100% of the daily ETc applied only in the evening at each growth stage) and T4 (50% of the daily ETc applied in the morning and the other 50% applied in the evening at each growth stage) were used for the study. Parameters studied on the crop were plant height, number of tillers, weight of fresh bulbs, weight of fresh leaves and weight of oven-dried leaves. The results of the experiment showed that bulb weight, plant height, and number of tillers were significantly affected by different water application schedules. T4 produced the highest mean weight of fresh bulb of 150.2g (25t/ha) with water productivity of 5.45kg/m3 followed by T3 of 138.8g (23.1t/ha) and water productivity of 5.04kg/m3 while T2 recorded the least mean weight of fresh bulb of 96.2g (16t/ha). T1 which served as control recorded the lowest water productivity of 2.65kg/m3. Since bulb weight determines its quality, maximum economic yield can be achieved by using T4 which produced the highest mean bulb weight at harvest. This suggests that, quality onion bulbs production could be achieved if a T4 water application schedule is adopted by onion farmers. However, where time is a limiting factor, T3 can be adopted since it followed T4 in terms bulb yield (23.1t/ha) and water productivity of 5.04kg/m3.

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