Academic Research Journal of Agricultural Science and Research
 

Vol. 7(1), pp. 21-30, January 2019
DOI: 10.14662/ARJASR2018.103
Copy©right 2019
Author(s) retain the copyright of this article
ISSN: 2360-7874
http://www.academicresearchjournals.org/ARJASR/Index.htm
 

Full Length Research

Evaluation of Improved Exotic Head Cabbage (Brassica Oleracea Var Capitata L.) Varieties at Adola Rede Areas, Southern Oromia, Ethiopia

Solomon Teshome^1,*, Tekile Bobo²

^1,2Oromia Agriculture Research Institute (IQQO)

Bore Agricultural Research Center (BOARC)

*Corresponding author: Solomon Teshome (solomtesh41@gmail.com)

Accepted 10 January 2019

Evaluation of exotic varieties was carried out to select the most adaptable and high yielding improved or exotic varieties. Field experiments were conducted during the 2017 and 2018 short rainy season at three locations with supplemental irrigation. A randomized complete block design with three replications was used; each plot consisted of five rows and eight plants per row having spacing of 40cm*50cm on a plot size of 2.5 m* 2.8 m. Improved exotic cabbage varieties Olsen, Royal, Monarch and DSA Copenhagen market were used for the study. A widely cultivated variety (Gloria) was included as check. The two years combined data analysis results revealed that for each seasons and locations days to head initiation, days to 80% maturity, plant height, number of expanded true leaves, diameter of head, untrimmed head mass, trimmed head mass, head yield with wrapper, head yield without wrapper and total head yield had differently significance (P<0.05) among the varieties. But there was non-significance difference (P> 0.05) mean of head height of each variety. The maximum days to head initiation (72 days) were attained by Gloria variety where the minimum (63.83, 64.25, 65.08 and 65.91 days) duration was observed by Olsen, Royal, DSA and Monarch varieties, respectively. While the maximum days (100.5 days) to maturity was recorded by Gloria variety and the minimum days (93 days) were recorded by Olsen variety. Regarding the plant height the highest (30.74 cm) result was attained by Monarch variety and the minimum (21.93 cm) was recorded by Gloria variety. As combined analysis of improved varieties over locations and years means revealed that the highest (17 leaves) expanded true leaves were obtained from Monarch variety. However, the lowest true leaves (8, 9, and 10) were obtained from Royal, Olsen and DSA varieties. Similarly the highest (21.16 cm) diameter of head was recorded by Royal variety, while the rest improved varieties were with minimum head height. There was non-significant difference between varieties on height of head. The maximum (4735 g) untrimmed head mass was observed by Royal variety, while the minimum (2180 g) was recorded by DSA Copenhagen variety. Regarding the trimmed economic head mass the maximum (3960 g) was recorded by Royal variety and the minimum (1310.3 g) was by DSA Copenhagen variety. The highest (78.69 t ha-1) yield without wrapper was recorded by Royal variety while the lowest (53.39 t ha-1) yield without wrapper was recorded by DSA Copenhagen variety. And also the highest (164.14 t ha-1) total yield was observed by Royal variety and the lowest (129.49 t ha-1) total yield was recorded by DSA Copenhagen variety. Generally, as a conclusion and recommendation, for head cabbage growers at Adola Rede and similar agro ecologies improved varieties of Royal and Monarch were selected and recommended for better early maturing, maximum head yield, head shape, head size, and low incidence of loose heads.

Key words: Improved cabbage varieties, growth, head yield, yield components

How to cite this article (APA Style):

Solomon T, Tekile B (2019). Evaluation of Improved Exotic head Cabbage (Brassica Var Capitata L.) Varieties at Adola Rede Areas, southern Oromia, Ethiopia. Acad. Res. J.Agri.Sci.Res.x(x): 31-36.