Academic Research Journal of Agricultural Science and Research
 

Academic Research Journal of Agricultural Science and Research 

Vol. 5(4), pp. 313-319. July, 2017.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASR2017.030

Full Length Research

Effects of planting density and number vertical on yield and yield component of south Ethiopia coffee selections at Awada, Sidama zone, Southern Ethiopia

^1*Ashenafi Nigussie, ² Adane Adugna, ³Leta Ajema, ³ Tesfaye Shimber and ⁴Endale Taye

^{1, 2, 3,} Ethiopia Institute of Agricultural Research, Wondo Genet Agriculture Research Center P.O.Box 198 Shashemene Ethiopia

Corresponding Author’s email: nigussie.ashenafi@yahoo.com

Accepted 15 May 2017

A field experiment was conducted at Awada Agriculture Research Sub-center experimental site in two sets between 2005 and 2015 having two promising improved south Ethiopian coffee selections with distinct canopy class: open type (13/77) and compact type (85/238) to determine appropriate plant density and number of verticals for enhanced yield and yield component. Three levels of spacing (2.50 m x 2.50 m, 2.00 m x 2.00 m and 1.50 m x 1.50 m) and three vertical or bearing head number (one, two and free growth as farmers practice) were used as treatments and laid out in a randomized complete block design (RCBD) with three replications.  Analysis of variance revealed that; clean coffee yield significantly influenced by different spacing level; highest and lowest clean coffee yield were obtained at 4444 trees/ha (Sp3) and 1600 coffee trees/ha (SP1) planting density, respectively. Regardless of number of vertical, except pooled mean analysis in most harvesting seasons clean coffee yield significantly influenced by different number of verticals. The combined analysis of variance also revealed highly significant yield variations among crop seasons and showed interactions effect with spacing and number of verticals.  Moreover, open type coffee variety was showed interaction effect among spacing by number of verticals but compact type coffee variety not yet influenced by interaction effect. Generally, these finding suggest that close spacing with their required number of verticals significantly promoted the yield responses of Arabica coffee cultivars under two contrasting coffee varieties. Therefore, 1.5m X 1.5m (SP3) spacing with single stem (V1), and 1.5m X 1.5m (SP3) spacing with multiple stems (V2) treatments combinations were recommended for open and compact type coffee varieties to enhance yield and yield components, respectively.

Key words: - Bearing heads, Coffee selections, Number vertical and planting density
 

How to cite this article: Nigussie A, Adugna A, Ajema L, Shimber T, Taye E (2017). Effects of planting density and number vertical on yield and yield component of south Ethiopia coffee selections at Awada, Sidama zone, Southern Ethiopia. Acad. Res. J. Agri. Sci. Res. 5(4): 313-319

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