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A. Gray. Amaranthus tuberculatus, commonly known as roughfruit amaranth, [4] rough-fruited water-hemp, [5] tall waterhemp, or common waterhemp, [6][7] is a species of flowering plant. It is a summer annual broadleaf with a germination period that lasts several months. [8] Tall waterhemp has been reported as a weed in 40 of 50 U.S. states.
4-Hydroxyphenylpyruvate dioxygenase (HPPD) is an enzyme found in both plants and animals, which catalyzes the catabolism of the amino acid tyrosine. [4] Preventing the breakdown of tyrosine has three negative consequences: the excess of tyrosine stunts growth; the plant suffers oxidative damage due to lack of tocopherols (vitamin E); and ...
Rhizoctonia solani sensu lato causes a wide range of commercially significant plant diseases. It is one of the fungi responsible for brown patch (a turfgrass disease), damping off (e.g. in soybean seedlings), [10] black scurf of potatoes, [11] bare patch of cereals, [12] root rot of sugar beet, [13] belly rot of cucumber, [14] banded leaf and sheath blight in maize, [15] sheath blight of rice ...
Bacterial blight of soybean is caused by the bacterial agent Pseudomonas syringae pv. glycinea. This bacterium also causes disease in snap bean (Phaseolus vulgaris) and lima bean (Phaseolus lunatus), however it is more commonly seen in soybean. [4] Pseudomonas syringae pv. glycinea attacks all of the above-ground parts of soybean, but symptoms ...
The soybean cyst nematode (SCN), Heterodera glycines, is the most devastating pest to soybean crop yields in the U.S., [1] targeting the roots of soybean and other legume plants. When infection is severe SCNs cause stunting, yellowing, impaired canopy development, and yield loss. [2] The symptoms caused by SCNs can go easily unrecognized by ...
Alfalfa mosaic. genus Alfamovirus, Alfalfa mosaic virus (AMV) [citation needed] Bean pod mottle. genus Comovirus, Bean pod mottle virus (BPMV) Bean yellow mosaic. genus Potyvirus, Bean yellow mosaic virus (BYMV) Brazilian bud blight. genus Ilarvirus, Tobacco streak virus (TSV) Cowpea chlorotic mottle.
Root nodule. A simplified diagram of the relation between the plant and the symbiotic bacteria (cyan) in the root nodules. Root nodules are found on the roots of plants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. [1] Under nitrogen -limiting conditions, capable plants form a symbiotic relationship with a host ...
The disease reaches its climax when the crop begins flowering. The cycle of the pathogen continues until the crop is defoliated or until the environment becomes unfavorable to the pathogen. [8] The Asian soybean rust is a polycyclic disease: within the disease cycle, the asexual urediniospores keep infecting the same plant.