Effects of row spacing and seeding rate on some agronomic characteristics of rapeseed

Abstract

In two field trials conducted at National Wheat Research Center (CNPT) in Passo Fundo, RS, Brazil, the effects of three seeding rates, in combination with three row spacing and broadcast seeding, on yield and components of rape seed (Brassica napus L. var. oleifera Metzg.), cultivar CTC4, were studied. Seeding rates used in 1982 and its interaction with row spacing (1980 and 1982) did not affect grain yield and some agronomic characteristics of rape seed and other agronomic characteristics. There was significance between means for some characters on row spacing in both years of experimentation, and for sceding rates only in 1980. It was concluded that the highest grain yield was obtained by broadcasting the seeds.