Publication Date
1985
Location
Kyoto Japan
Description
A comparative discussion was made concerning the potential productivity of orchardgrass (Dactylis glomerata L.) and the climatic background of its growth in Japan (Asian monsoon climate) and in New Zealand (Temperate grassland climate). The potential productivity of orchardgrass pasture at four sites in Japan and 13 sites in New Zealand were predicted from air temperature and solar radiation at each site, using a production model. Annual potential productivity was larger as a whole in New Zealand. The seasonal variation of potential productivity in Japan presented markedly different patterns from site to site. While in New Zealand no large regional difference was found in the seasonal pattern, presenting a simple and mono-peaked curve in common for all ° sites examined. In the central part (around 36 NL) in Japan, the summer air temperature exceeds 25 C on monthly average, which may cause the drop of potential productivity, while in the northern part the ° growth season is restricted short by low air temperature. At many of sites in New Zealand a favorable air temperature (l6 C or a little higher on daily average) for orchardgrass production lasts for long period in summer. In Japan the climatic condition, especially the seasonal combination of air temperature and solar radiation seems less beneficial to orchardgrass production.
Citation
Kubota, F and Agata, W, "On the Potential Productivity of Orchardgrass Pasture (Dactylis glomerata L.) in Japan and New Zealand" (1985). IGC Proceedings (1985-2023). 3.
(URL: https://uknowledge.uky.edu/igc/1985/ses16/3)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
On the Potential Productivity of Orchardgrass Pasture (Dactylis glomerata L.) in Japan and New Zealand
Kyoto Japan
A comparative discussion was made concerning the potential productivity of orchardgrass (Dactylis glomerata L.) and the climatic background of its growth in Japan (Asian monsoon climate) and in New Zealand (Temperate grassland climate). The potential productivity of orchardgrass pasture at four sites in Japan and 13 sites in New Zealand were predicted from air temperature and solar radiation at each site, using a production model. Annual potential productivity was larger as a whole in New Zealand. The seasonal variation of potential productivity in Japan presented markedly different patterns from site to site. While in New Zealand no large regional difference was found in the seasonal pattern, presenting a simple and mono-peaked curve in common for all ° sites examined. In the central part (around 36 NL) in Japan, the summer air temperature exceeds 25 C on monthly average, which may cause the drop of potential productivity, while in the northern part the ° growth season is restricted short by low air temperature. At many of sites in New Zealand a favorable air temperature (l6 C or a little higher on daily average) for orchardgrass production lasts for long period in summer. In Japan the climatic condition, especially the seasonal combination of air temperature and solar radiation seems less beneficial to orchardgrass production.
