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Publication Date
1993
Location
New Zealand
Description
Reproductive initiation, closing dates, nitrogen requirements and optimum harvest time were investigated for seed production of Grasslands Tiki smooth brome (Bromus inermis Leyss.) in the South Island of New Zealand. Reproductive initiation began in late June, spikelet initiation in mid-September and ear-emergence in midOctober. Seed yield was not affected detrimentally by mowing to 5 cm in mid-September but decreased 24% by mowing in mid-October. Seed yield tended to increase with increasing amounts of N. However, although the highest seed yields were achieved with 50 kg/ha of N in autumn plus I 00 or 150 kg/ha in spring, they did not differ significantly from the yield from 100 kg N/ha applied in spring. Optimum harvest was 21-25 days after anthesis.
Citation
Rowarth, J S. and Archie, W J., "Reproductive Initiation, Closing Dates, Nitrogen Requirements and Harvesting of Smooth Brome cv. Grasslands Tiki" (1993). IGC Proceedings (1985-2023). 27.
(URL: https://uknowledge.uky.edu/igc/1993/session45/27)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Reproductive Initiation, Closing Dates, Nitrogen Requirements and Harvesting of Smooth Brome cv. Grasslands Tiki
New Zealand
Reproductive initiation, closing dates, nitrogen requirements and optimum harvest time were investigated for seed production of Grasslands Tiki smooth brome (Bromus inermis Leyss.) in the South Island of New Zealand. Reproductive initiation began in late June, spikelet initiation in mid-September and ear-emergence in midOctober. Seed yield was not affected detrimentally by mowing to 5 cm in mid-September but decreased 24% by mowing in mid-October. Seed yield tended to increase with increasing amounts of N. However, although the highest seed yields were achieved with 50 kg/ha of N in autumn plus I 00 or 150 kg/ha in spring, they did not differ significantly from the yield from 100 kg N/ha applied in spring. Optimum harvest was 21-25 days after anthesis.
