Pigweed, Amaranthus

Pigweeds Amaranthus spp. corn, cotton peanuts, sorghum soybeans, tobacco corn, sorghum soybeans, tobacco soybeans, corn CD... 

Common millet Panicum miliaceum L., barnyard grass E. crus-galli (L.) P. Beauv., bristly foxtail Setaria verticillata (L.) P. Beauv., redroot pigweed Amaranthus retroflexus L. 

Pigweed Amaranthus spp., foxtail Setaria spp., velvetleaf Abutilon theophrasti Medikus Carpetweed Mollugo verticillata L., common... 

Carotenoid Yellow to violet Dehydrated isoprene Carotene Pigweed (Amaranthus sp., Amaranth aceae) Sorrel (Rumex sp.) Little hogweed (Portulaca oleracea L.) ... 

Birschbach, E.D., M.G. Myers, and R.G. Harvey (1993). Triazine-resistant smooth pigweed (Amaranthus hybridus) control in field corn (Zea mays L.). Weed Technol., 1 431-436. 

Foy, C.L. and H.L. Witt (1997). SAN 582, alachlor, and metolachlor control of triazine-resistant (TR) smooth pigweed (Amaranthus hybridus) in no-till com (Zea mays). Weed Technol., 11 623-625. 

Sibony, M. and B. Rubin (2004). Molecular basis for diverse level of herbicide multiple-resistance in prostrate pigweed (Amaranthus blitoides). 4th International Weed Science Congress, p. 53, S15MT08P00. 

Manley, B.S., H.P. Wilson, and T.E. Hines (1998). Characterization of imidazolinone-resistant smooth pigweed (Amaranthus hybridus). 

McNaughton, K.E., J. Letarte, E.A. Lee, and E.J. Tardif (2005). Mutations in ALS confer herbicide resistance in redroot pigweed (Amaranthus retroflexus) and Powell amaranth (Amaranthus powellii). Weed Sci., 53 17-22. 

Schmenk, R.E., M. Barrett, and W.W. Witt (1996). A smooth pigweed (Amaranthus hybridus L.) population resistant to ALS-inhibiting herbicides. Proceedings South Weed Science Society, p. 17. 

Redroot pigweed Amaranthus retroflexus (L.) Gliocladiiim virens Miller, Giddens Foster peat moss contg. 22 sucrose and ammonium nitrate ... 

Some of the problem dicotyledonous weeds, such as common lambsquarters (Chenopodium album), pigweed (Amaranthus retroflexus) and Russian thistle (Salsola kali), are resistant to asulam. On the other hand, as a postemergence herbicide asulam is effective against Rumex spp., Averui fatua and Pteridium aquilinum. 

We compared the membrane lipid composition of chloroplasts isolated from species of common groundsel (Senecio vulgaris L.), lambsquarters (Chenopodium album L.), and pigweed (Amaranthus hybridus L.) (Table VIII) (W. 

Seed was obtained from a triazine-resistant and a triazine-susceptible population of smooth pigweed ( Amaranthus hybridus ) generously gifted by Drs. D. Ort and R.A. Liebl. The growing condition of the plants and the chloroplast isolation are described in [1]. 

Germination of redroot pigweed (Amaranthus retroflexus) seed, maintained at 40°C, is enhanced when Pf, is formed before the seeds are exposed to lower temperatures for a brief period (Taylorson and Hendricks, 1971). 

When FBj was found to be structurally related to AAL-toxin, it was decided to test both toxins for phytotoxicity with a variety of plant species. AAL-toxin was phytotoxic to both weed and crop species, including black nightshade Solanum nigrum L.), redroot pigweed (Amaranthus retroflexus L.), northern jointvetch Aeschynomene virginica (L.) B.S.P.)], duckweed (Lemna spp.), prickly sida Sida spinosa L.), jimsonweed Datura stramonium L.), cocklebur Helianthus annuus L.), hemp sesbania Sesbania exaltata [(Raf.)... 

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