Effect of seeding rate on height, yield and quality of large-seeded and semi-dwarf buckwheat genotypes.

G.H. Gubbels and C.G. Campbell.

Research Station, Agriculture Canada, Morden, Manitoba R0G 1J0.

Gubbels, G.H. and C.G. Campbell. 1986. Effect of seeding rate on height, yield and quality of large-seeded and semi-dwarf buckwheat genotypes. Can J. Plant Sci. 66: 61-66.

Abstract: Two large-seeded buckwheat cultivars, Mancan and Manor, and semi-dwarf lines were grown at Morden and Portage la Prairie in the years 1979-1982 at seeding rates from 15, 30, 45, 60 kg/ha. There was no consistent effect of seeding rate on plant height, seed weight (g/1000 seeds) or seed density. In six of the eight location-years there was no interaction of genotype x seeding rate for seed yield, indicating that, generally, the cultivars and lines reacted similarly to differences in seeding rate. It was cOncluded that a seeding rate of from 30 to 45 kg/ha would ensure optimum yield in most years.

Key words: buckwheat, Fagopyrum esculentum, seeding rate, semi-dwarf