Effects of seeding rate and row space on yield and components of naked oat

Field experiments with Qingyin No.3 cultivar were conducted to study the effects of seeding rate and row space on seed yield, stalk yield and seed yield components of naked oat (Avena nuda) in Minhe county, east part of Qinghai province. Correlation between seed yield and its components, production profit of naked oat were analyzed. Results showed that 1 000 kernel weight and seed yield were highest under the treatment of 120 kg·ha-1 seeding rate and 20 cm row space. Stalk yield was highest under the treatment of 150 kg·ha-1 seeding rate and 15 cm row space. There were significant correlations between seed yield and its components. Under the treatment of seeding rate 120 kg·ha-1 and row space 20 cm, the economic profit of naked oat production was highest which was 6 232 CNY·ha-1. Seed yield (Y1 kg·ha-1) and stalk yield (Y2 kg·ha-1) could be estimated by the binary quadratic equation between them and treatments with seeding rate (B, kg·ha-1) and row space (H, cm).