Archived
This content is available here strictly for research, reference, and/or recordkeeping and as such it may not be fully accessible. If you work or study at University of Kentucky and would like to request an accessible version, please use the SensusAccess Document Converter.
Publication Date
1981
Description
Obtaining more than 34 machine-dressed seeds from every 100 florets in trials at Lincoln, New Zealand, was uncommon. In ryegrass (Lolium sp.), Grasslands Matua prairie grass (Bromus catharticus Vahl), and G17 cocksfoot (Dacrylis glomerata L.) crops, the larger the floret population, the lower the number of seeds obtained from every 100 florets. Nitrogen (N) improved the return, and in prairie grass the return increased as the rate ofN increased beyond 20 kg N/ha. In prairie grass, floret populations decreased as row spacings increased. With this seed, recovery was highest at wide row spacings, but in cocksfoot the reverse was true. For crops with similar floret populations, seed recovery was greater in crops with fewer but larger seed heads. Research aimed at inhibiting reduction of or increasing seed recovery offers a promising approach for increasing the efficiency of grassseed production.
Citation
Brown, K R., "Inefficient Conversion of Floret Populations to Actual Seed Harvested in Grass-Seed Crops" (1981). IGC Proceedings (1981-2023). 6.
(URL: https://uknowledge.uky.edu/igc/1981/section2/6)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Inefficient Conversion of Floret Populations to Actual Seed Harvested in Grass-Seed Crops
Obtaining more than 34 machine-dressed seeds from every 100 florets in trials at Lincoln, New Zealand, was uncommon. In ryegrass (Lolium sp.), Grasslands Matua prairie grass (Bromus catharticus Vahl), and G17 cocksfoot (Dacrylis glomerata L.) crops, the larger the floret population, the lower the number of seeds obtained from every 100 florets. Nitrogen (N) improved the return, and in prairie grass the return increased as the rate ofN increased beyond 20 kg N/ha. In prairie grass, floret populations decreased as row spacings increased. With this seed, recovery was highest at wide row spacings, but in cocksfoot the reverse was true. For crops with similar floret populations, seed recovery was greater in crops with fewer but larger seed heads. Research aimed at inhibiting reduction of or increasing seed recovery offers a promising approach for increasing the efficiency of grassseed production.
