The experiment was carried out in Bom Jesus, Goiás State, Brazil, with the objective to evaluate the growth and yield of the castor crop bean, cultivar Guarani, influenced by different population, of plants under rainfed condition. A randomized block design was used. Five treatments had been carried through: Treatment nº 1 - 1 x 1 m with 10,000 plants ha-¹; Treatment nº 2 - 0.90 x 0.70 m with 15,873 plants ha-¹; Treatment nº 3 - 1 x 0.50 m with 20,000 plants ha-¹; Treatment nº 4 - 0.90 x 0.50 m with 22,222 plants ha-¹; Treatment nº 5 - 1,50 x 0,50 m with 13,333 plants ha-¹. Data of height of plants, first raceme height, number of raceme per plant, length of raceme, stem diameter, and yield were collected. The first raceme height, the number of raceme per plant and the stem diameter were influenced by different population of plants. However for the height of plant, length of raceme and yield, there was no significant effect among the treatments.
Ricinus communis; oilseed; stem diameter
