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Lolium perenne, common name perennial ryegrass, [1] English ryegrass, winter ryegrass, or ray grass, is a grass from the family Poaceae. It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world.
Leymus chinensis shows 47% germination under variable temperatures ranging from 10 to 30 °C. De-husking (removing outer-covering of seeds) at constant temperature was shown to also improve germination. [3] The effects of light have had an interesting effect on the germination of Leymus chinensis. The plants were assessed according to three ...
Lolium multiflorum (Italian rye-grass, [2] annual ryegrass) is a ryegrass native to temperate Europe, though its precise native range is unknown. [3] It is a herbaceous annual, biennial, or perennial grass that is grown for silage, and as a cover crop. [4] [5] It is also grown as an ornamental grass.
The primary species found worldwide and used both for lawns and as a forage crop is perennial ryegrass (Lolium perenne). Like many cool-season grasses of the Poaceae, it harbors a symbiotic fungal endophyte, either Epichloë or its close relative Neotyphodium, both of which are members of the fungal family Clavicipitaceae. [10] [11]
Leymus cinereus is a perennial bunchgrass forming large, tough clumps up to about 2 metres (6 + 1 ⁄ 2 feet) tall [4] and sometimes exceeding 1 m (3 + 1 ⁄ 2 ft) in diameter. It has a large, fibrous root system and sometimes small rhizomes.
The development of perennial grains could improve the sustainability of agriculture. [8] [9] [1] [5] In contrast to annual systems, perennial systems involve plants with deep, long lived roots. A perennial system is not dependent on tilling and could reduce the dependence on chemical applications, build soil health, and sequester carbon. [1] [8]
Growing degrees (GDs) is defined as the number of temperature degrees above a certain threshold base temperature, which varies among crop species. The base temperature is that temperature below which plant growth is zero. GDs are calculated each day as maximum temperature plus the minimum temperature divided by 2, minus the base temperature.
Elymus is a genus of perennial plants with approximately 150 species [5] in the grass family, related to rye, wheat, and other widely grown cereal grains. [6] Elymus is a cosmopolitan genus, represented by species across all continents of the world. [7] Common names include couch grass, wildrye and wheatgrass. [8] [9] [10] [11]