When Earth and Mars are at their theoretically closest point of 54.6 million km, it would take a signal from Earth about 3 minutes to make the journey, and then another 3 minutes for the signals to get back to Earth.
Switchgrass is a hardy, deep-rooted, perennial rhizomatous grass that begins growth in late spring. It can grow up to 2.7 m high, but is typically shorter than big bluestem grass or indiangrass. The leaves are 30â90 cm long, with a prominent midrib.
Our current supply of switchgrass seed is from wild regional populations made by plant materials centers. They have minimal genetic improvement other than selection for very general characteristics and/or forage and yield values, regional adaptability, seed productivity, and seedling strength., II, III. âNebraska 28â-NE Ecotype-relatively early maturing strain of switchgrass; average plants semi-decumbent, with fine stems of moderate height; bluish green and leafy; well adapted to diverse soils; used successfully for pasturage and soil conservation purposes.