Publication Date
1985
Location
Kyoto Japan
Description
Prairie grass (Bromus willdenowii) is a relatively new, large seeded herbage grass species. Management factors for seed production were studied in 8 trials at two locations. Seed yields increased as sowing rate was increased from 7 .5 to 30 kg/ha. Nitrogen fertilizer increased seed yields, and seed recovery from 24.3 to 34. 7 seeds per 100 florets. High seed yields of 2000 kg/ha can be harvested, and two harvests in the same season are possible. Spring sown crops produce economic yields of 740 to 1460 kg/ha in the first summer. Harvest losses can be high (29 to 50% ), associated with crop bulk at harvest. Chlormequat plant growth regulator reduced crop bulk by 38%. Low seed recovery rates in a crop that lodged before flowering was due to a high proportion of light seed in the sample. Contrasts and similarities to perennial ryegrass seed production are noted.
Citation
Brown, K R. and Rolston, M P., "Effect of Management on Seed Recovery and Seed Yield of Bromus willdenowii" (1985). IGC Proceedings (1985-2023). 46.
(URL: https://uknowledge.uky.edu/igc/1985/ses2/46)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Management on Seed Recovery and Seed Yield of Bromus willdenowii
Kyoto Japan
Prairie grass (Bromus willdenowii) is a relatively new, large seeded herbage grass species. Management factors for seed production were studied in 8 trials at two locations. Seed yields increased as sowing rate was increased from 7 .5 to 30 kg/ha. Nitrogen fertilizer increased seed yields, and seed recovery from 24.3 to 34. 7 seeds per 100 florets. High seed yields of 2000 kg/ha can be harvested, and two harvests in the same season are possible. Spring sown crops produce economic yields of 740 to 1460 kg/ha in the first summer. Harvest losses can be high (29 to 50% ), associated with crop bulk at harvest. Chlormequat plant growth regulator reduced crop bulk by 38%. Low seed recovery rates in a crop that lodged before flowering was due to a high proportion of light seed in the sample. Contrasts and similarities to perennial ryegrass seed production are noted.
