Effect of agronomic practices on seed and oil yields of Ethiopian mustard (Brassica carinata A. Braun.) and rape seed (B. napus L.)

Authors

  • Alemayehu Nigussie Institute of Agricultural Research, Holetta Research Center, Addis Ababa, Ethiopia
  • Teklewold Adefris Institute of Agricultural Research, Holetta Research Center, Addis Ababa, Ethiopia
  • Tadele Zerihun Institute of Agricultural Research, Holetta Research Center, Addis Ababa, Ethiopia

Keywords:

Seed and oil yields, Seed yield components, Ethiopian mustard, Brassica carinata, Rape seed, Brassica napus, Sowing date and method, Fertilizer, Weed control

Abstract

An experiment was conducted at two locations and for two seasons in Ethiopia to quantify the relative effects of sowing date and method, fertilizer, and weed control on seed and oil yields and seed-yield components of Ethiopian mustard (Brassica carinata A. Braun.) and rape seed (B. napus L.). Use of N and P fertilizers, optimum sowing dates, and weed control invariably promoted seed and oil yields and number of pods per plant. The influence of sowing method was not consistent. There was a positive compensation of oil content by seed size. The indigenous species B. carinata, unlike the exotic B. napus, was found to be less fastidious in respect of the major culture practices.

Issue

Section

Research Papers