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Sisay Berhanu Mekonnen* J.J. Sharma
Nigussie Dechassa
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Nigussie Dechassa
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International Journal of Plant Breeding and Crop Science

Effects of nitrogen fertilizer rates on yield and yield components of sesame (Sesamumindicum L.) varieties under irrigation in Gode, South-Eastern Ethiopia

Sisay Berhanu Mekonnen1* J.J. Sharma2,  Nigussie Dechassa2

1*Department of Plant Science, College of Agriculture and Natural Resource, Dilla University, P O Box: 419, Dilla, Ethiopia

2Department of Plant Science, Haramaya University, P O Box 138, Dire-Dawa, Ethiopia

Co-authors email:  2sharma50@gmail.com 2nidussiedachassa @gmail.com

Accepted January 24, 2016.

Citation: Mekonnen Sb, Sharma JJ, Dechassa N   (2016). Effects of nitrogen fertilizer rates on yield and yield components of sesame (Sesamumindicum L.) varieties under irrigation in Gode, South-Eastern Ethiopia. International Journal of Plant Breeding and Crop Science. 3(1): 071-078.

                                                             

Copyright: © 2016 Mekonnen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

The productivity of sesame crop is low due to poor agronomic practice and inappropriate use of fertilizers in Gode district. Therefore, a field experiment was conducted under irrigation in the demonstration farm of Gode Polytechnic College, in 2014. The objective was to observe the effect of five N rates (0, 23, 46, 69 and 92kg ha-1) and three sesame varieties (Adi, Barsan and Mehado-80) on yield and yield components of sesame (Sesamumindicum L.). The experiment was designed according to randomized complete blocks in factorial arrangement with three replications. Results of the analysis revealed that the interaction effects of N rates and sesame varieties were highly significant (P<0.01) in relation to number of capsules per plant-1, thousand seed weight, aerial dry biomass weight, seed yield and harvest index. Barsan variety at 46 kg N ha-1 had significantly higher number of capsules plant-1 (46.07) and seed yield (2.08 t ha-1) and harvest index (0.24) than other interactions. Similar trend was observed in 1000 seed weight also except there was no significant difference with Mehado-80 variety at 69 kg N ha-1. Mehado-80 variety at 92 kg N ha-1 had highest aerial dry biomass yield which was statistically at par with Adi at 92 kg N ha-1 and Barsan from 46 to 92 kg N ha-1.Thus, according to the results of partial budget analysis, application of 46kg N ha-1 in Barsan variety was the best interaction than others in relation to yield and yield components of sesame under Gode conditions.

Keywords: Sesamumindicum, varieties, nitrogen, sesame, yield components, yield, irrigation.