Grass activity

Ralph, J., Grabber, J. H., and Hatfield, R. D. (1995) Lignin-ferulate crosslinks in grasses Active incorporation of ferulate polysaccharide esters into ryegrass lignins. Carbohydr. Res. 275(1), 167-178. 

An initial effort to compare the activity for various substituents on the phenyl ring was accomplished by preparing sulfonamides from commercially available ortho-substituted benzenesulfonyl chlorides. The in vivo and in vitro activity for the ortho-substituted sulfonamides is summarized in Table III. With the exception of the nitro substitution (50), these molecules have good activity on broadleaf weeds. However, only the methoxy (46), trifluoromethoxy (47), and methyl ester (48) have good levels of activity on grass weeds. Additionally, all of these sulfonamides are very injurious to rice, even those with weak levels of overall grass activity. 

Sodium trichloroacetate [650-51-17, C2Cl202Na, is used as a herbicide for various grasses and cattails (2). The free acid has been used as an astringent, antiseptic, and polymerisation catalyst. The esters have antimicrobial activity. The oral toxicity of sodium trichloroacetate is quite low (LD q rats, 5.0 g/kg). Although very corrosive to skin, trichloroacetic acid does not have the skin absorption toxicity found with chloroacetic acid (28). 

Recreational surfaces must provide certain performance characteristics with acceptable costs, lifetimes, and appearance. Arbitrary but useful distinctions may be made for classification purposes, depending on the principal function a covering intended primarily to provide an attractive surface for private leisure activities, eg, patio surfaces a surface designed for service in a specific sport, eg, track surfaces or a grass-like surface designed for a broad range of heavy-duty recreational activities, including professional athletics, eg, artificial turf for outdoor sports. 

Multiple-factor methods include the cost contributions for each given activity, which can be added together to give an overall factor. This factor can be used to multiply the total cost of dehvered equipment X (Ce(j)del lo produce an estimate of the total fixed-capital investment either for grass-roots or for battery-hmit plants. The costs may be divided into four groups ... 

Nouri-Aria KT. Wachholz PA. Francis JN. Jacobson MR, Walker SM. Wilcock LK. Staple SQ, Aalberse RC, Till SJ. Durham SR Grass pollen immunother-apyinduces mucosal and peripheral IL-10 responses and blocking IgG activity. J Immunol 2004 172 3252-3259. 

Use pattern Hymexazol is used for the control of soil-borne diseases for rice, sugar beet, spinach, pea, cucumber, watermelon, grass, etc. Applied as a soil drench or by soil incorporation and used as a seed dressing for sugar beet. Hymexazol also exhibits some plant growth stimulation activity. 

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