Calculation of Space between rows and within rows on the yield and agronomic characteristics of two genotypes of spring rapeseed (Hyola 401 and Opera)

摘要

In Iran, rapeseed (Brassica napus L.) is an important alternative oilseed crop.. The data on plant density of rapeseed is scanty. Therefore this experiment is planed to investigate the effects of space between rows and space within rows on the yield and agronomic characteristics of two genotypes of spring rapeseed (Hyola 401 and Opera) two cultivars of Brassica napus L., were studied for 2 years in Karaj, Iran during 2008 and 2009 years. The effects of spacing's between or within rows on the yield and yield components of Hyola401 and Opera, Rows were spaced at 20, 30 and 45 cm. Spacing's within rows were 5, 10 and 20 cm. The results of this study suggested that grain yield was significantly affected by spacing's between rows but not by spacing's within rows, and that rape yields were higher at the narrow (15 cm) row spacing compared to the middle (30 cm) and wider (45 cm) spacing's.