Influence of rainfall features on barley yield in Sinana district of Ethiopia

Authors

  • FITSUM BEKELE National Meteorological Agency of Bale Branch Directorate, P.O.Box 129, Bale-Robe, Ethiopia
  • DIRIBA KORECHA National Climate Scientist –Ethiopia USGS/Famine Early Warning Systems Network, Addis Ababa, Ethiopia
  • LISANEWORK NEGATU College of Agriculture, Haramaya University, Ethiopia

DOI:

https://doi.org/10.54386/jam.v19i2.684

Keywords:

Ethiopia,, barely yield, kiremt (JJAS) rainfall, onset date, correlation coefficients

Abstract

Rainfall data and barley production of Sinana district, South East Ethiopia for the period 1995-2016 were used to analyze influence of rainfall features on barley yield using correlation and regression techniques. Downscaled output of CSIRO-Mk3.6.0 GCM model for RCP 8.5 emission scenario for the period 2020-2049 were used to determine future rainfall and to ascertain its impact on barley yield. Six
rainfall characteristics viz. onset date, end date, length of growing season, seasonal (June-September, kiremt) rainfall, and total annual rainfall were analysed. Kiremt (JJAS) contributes 37 per cent of annual rainfall and varied between 271.4 mm and 854.0 mm during the study period with coefficient of variation (CV) of 43 per cent. The barley yield was found to vary between 14.79qha-1and 35.84qha-1 with CV of 27.9 per cent during the same period. The results indicated that among all the rainfall features studied, the kiremt rainfall had strong positive relationship (r = 0.668**) with barley yield and explained nearly 45 per cent of total variance in the yield. Under future climatic scenario during 2020-2049 period, the projected rainfall is going to be less than the mean rainfall that may cause reduction in barley yield by 1.8 to 4.4 per cent in Sinana district.

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Published

01-06-2017

How to Cite

FITSUM BEKELE, DIRIBA KORECHA, & LISANEWORK NEGATU. (2017). Influence of rainfall features on barley yield in Sinana district of Ethiopia. Journal of Agrometeorology, 19(2), 125–128. https://doi.org/10.54386/jam.v19i2.684

Issue

Vol. 19 No. 2 (2017): June

Section

Research Paper

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