Full Length Research Paper

Effect of sowing method and seed rate on the growth, yield and yield components of faba bean (Vicia faba L.) under highland conditions of Bale, Southeastern Ethiopia

Kissi Wakweya* and Tamiru Meleta

Abstract

Faba bean (Vicia faba L.) is one of the main crops grown in Southeastern Ethiopia. Broadcasting is the dominant planting method of faba bean production in the study area. An experiment was conducted on the effect of sowing method and seed rate on the growth, yield and yield components of faba bean at Sinana agricultural research center during 2013-2014 ‘Bona/meher’ cropping seasons. Two faba bean cultivars (Shallo and Gebelcho), Two sowing methods (Broadcast and row planting), Five seed rates (125, 150, 175, 200 and 225 kg/ha) were laid out in split-spilt plot with randomized complete block design (RCBD) in three replications. SAS, computer software was used to compute the analysis of variance. The results revealed that cultivars significantly affected seed and biomass yield, harvest index and 1000 seed weight. Gebelcho cultivar surpasses shallo. Similarly sowing method also significantly affected plant height, pods plant-1, biomass and seed yield. The seed yield gained by row sowing method was 20.2% higher than broadcast sowing method. Seed rates had significantly affected all the tested parameters except number of pods plant-1 and seed yield. On the other hand, the interaction effect between cultivars and sowing methods showed it was significantly affected all the tested traits. Similarly interaction between cultivar and seed rate had significantly affected all the tested parameters except number of pods plant-1 and seeds pod-1. Interaction between sowing method and seed rates were significantly affected all the studied parameters but not harvest index. The interaction between cultivar, sowing method and seed rates were also significantly affected all the tested parameters. Thus, for small seeded cultivars like Shallo use of 125 kg/ha seed rate was economical to use. On the other hand, Gebelcho in row sowing method at 200 and 225 kg/ha gave the first and the second highest mean seed yield (kg/ha). However, the partial budget analysis result showed that Gebelcho cultivar planted in row sowing method with 150 and 200 kg/ha seed rates gave the first and second highest marginal rate of return (MRR) respectively and  it was economical to produce faba bean.

Key words: Faba bean (Vicia faba L.), cultivar, sowing method, seed rate.

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