description Alamo Switchgrass Overview
Alamo switchgrass is a named cultivar of switchgrass, Panicum virgatum, released in 1978 at Knox City, Texas, through the Texas Agricultural Experiment Station and USDA Natural Resources Conservation Service. It is a warm-season perennial selected for adaptation in Texas and for high biomass production, which has made it relevant to research and land-management programs evaluating perennial energy crops. The cultivar is relevant to growers and researchers working with regionally adapted switchgrass. [USDA release notice](https://www.nrcs.usda.gov/plantmaterials/txpmcrb11189.pdf)
help Alamo Switchgrass FAQ
What is Alamo switchgrass?
Alamo is a lowland cultivar of Panicum virgatum, or switchgrass. It was released in Texas in 1978 by the Texas Agricultural Experiment Station and USDA-related plant materials programs.
Why is Alamo switchgrass used in bioenergy research?
It produces substantial dry biomass, making it useful as a potential energy crop. Texas trials reported yields of roughly 8 to 20 megagrams of dry matter per hectare under suitable conditions.
Where is Alamo switchgrass adapted?
The cultivar originated in southern Texas and is adapted to warm, lowland growing conditions. It is a perennial warm-season grass rather than a cool-season lawn grass.
When is Alamo switchgrass usually harvested for maximum biomass?
USDA research has recommended harvesting Alamo once in the fall when the goal is maximum biomass production. The exact timing still depends on local weather, soil, and the intended use of the crop.
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