Determining the water use efficiency (WUE) of drought tolerant common bean varieties
Paper Details
Determining the water use efficiency (WUE) of drought tolerant common bean varieties
Abstract
In semi-arid regions, like Machakos, crops use only a small fraction of total rainfall received in many agricultural systems. An experiment was set up to evaluate initial soil characteristics, determine moisture retention using pF-curve as early warning for irrigation scheduling, determine moisture trends during phenological stages, determine water use efficiency (WUE) of grain and above ground biomass production of four selected bean varieties. The experiment was laid out in randomized complete block design with 4×3 Split-plot arrangement and replicated four times for two seasons of 2016 and 2017. The treatments were Conventional tillage, Minimum tillage and zero tillage replicated four times. The bean varieties were four in the order of GLPX92, KAT/B1, KATX56 and KATRAM replicated four times in a 4×3 Split-plot arrangement. Soil moisture was taken using neutron probe at different depths. The result shows that GLPX92 had the highest WUE followed by KAT/B1, KATX56 and KATRAM the least performing.
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Yarkpawolo K. Johnson, Josiah M. Kinama, Fredrick O. Ayuke, Isaya V. Sijali (2018), Determining the water use efficiency (WUE) of drought tolerant common bean varieties; IJAAR, V12, N3, March, P35-45
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