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Cyperus rotundus is a perennial plant, that may reach a height of up to 140 cm (55 in).The names "nut grass" and "nut sedge" – shared with the related species Cyperus esculentus – are derived from its tubers, that somewhat resemble nuts, although botanically they have nothing to do with nuts.
Cynodon dactylon, commonly known as Bermuda grass, also known as couch grass in Australia and New Zealand, is a grass found worldwide. It is native to Europe , Africa , Australia and much of Asia .
It is a measure of germination time course and is usually expressed as a percentage, e.g., an 85% germination rate indicates that about 85 out of 100 seeds will probably germinate under proper conditions over the germination period given. Seed germination rate is determined by the seed genetic composition, morphological features and ...
Tifton 85 is a hybrid strain of Bermudagrass Cynodon dactylon, a forage perennial grass that originated in Africa and was brought to the United States as a pasture and hay crop for the humid Southern states.
The genus as a whole as well as its species are commonly known as Bermuda grass or dog's tooth grass. [citation needed] Species [1] [3] Cynodon ambiguus (Ohwi) P.M ...
Cynodon nlemfuensis, the African Bermuda-grass, is a species of grass, genus Cynodon, family Poaceae. [2] [3] It is native to Tropical Africa except West Africa, and widely introduced as a forage elsewhere; Hawaii, Texas, Florida, Mexico, Central America, the Caribbean, the Galápagos, South America, western and southern Africa, Saudi Arabia, Taiwan, the Philippines and Australia. [1]
Once the grass starts flowering, the open panicle seed head shows the infestation. [1] The damage to wheat crop is through both strong competition, lowering yield, and seed contamination, lowering quality. Bromus diandrous infestation in wheat, NZ. Ripgut brome is also troublesome in rangeland if it establishes in high numbers.
True dormancy or inherent (or innate) dormancy is caused by conditions within the seed that prevent germination even if the conditions are favorable. [7] Imposed dormancy is caused by the external conditions that remain unsuitable for germination [8] Seed dormancy can be divided into two major categories based on what part of the seed produces dormancy: exogenous and endogenous. [9]
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