Reference

Differential sensitivity of suspension cultures of maize, several soybean genotypes and Glycine canescens to the herbicide DPX-F6025 [2-(([(4-chloro-6-methoxypyrimidine-2-yl)amino carbonyl]amino sulfonyl)benzoic acid ethyl ester]

Differential sensitivity of suspension cultures of maize, several soybean genotypes and Glycine canescens to the herbicide DPX-F6025 [2-(([(4-chloro-6-methoxypyrimidine-2-yl)amino carbonyl]amino sulfonyl)benzoic acid ethyl ester]. Chowdhury, Vijay K.; Zehr, Brent E.; Widholm, Jack M. (Dep. Agron., Univ. Illinois, Urbana, IL 61801, USA). Plant Sci. (Limerick, Irel.), 46(3), 207-11 (English) 1986. CODEN: PLSCE4. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) Previous field observations and greenhouse studies described here involving DPX-F6025 [90982-32-4], a soybean herbicide, show that soybean cultivars and maize have different sensitivities to the herbicide. The sensitivity of suspension cultures of the soybean (Glycine max) cultivars A3127, Earlyana and Old Dominion, and G. canescens and maize (Zea mays) were tested against varying concns. of DPX-F6025. The response of the cells in vitro correlates well with the whole plant response since maize and Old Dominion are much more sensitive than G. canescens and A3127, and Earlyana is more tolerant yet. The resp. I50 values were about 1, 5, 60, 75 and 800 nM. The inhibitory effect of 1 mM DPX-F6025 was at least partially reversed by exogenous valine [72-18-4] and/or isoleucine [73-32-5]. Levels of free isoleucine, leucine [61-90-5] and valine in the cultured cells did not correlate with herbicide sensitivity.

Herbicide composition comprising a solid particle coated with a water-insoluble coating material

Herbicide composition comprising a solid particle coated with a water-insoluble coating material. Wysong, Robert David; Beestman, George Bernard; Schurr, George Alan (E.I. Du Pont De Nemours and Company; Wysong, Robert David; Beestman, George Bernard; Schurr, George Alan, USA). PCT Int. Appl. WO 9707676 A1 6 Mar 1997, 42 pp. DESIGNATED STATES: W: AL, AM, AU, AZ, BB, BG, BR, BY, CA, CN, CU, CZ, EE, GE, HU, IL, IS, JP, KG, KP, KR, KZ, LK, LR, LT, LV, MD, MG, MK, MN, MX, NO, NZ, PL, RO, RU, SG, SI, SK, TJ, TM, TR, TT, UA, US, UZ, VN, AM, AZ, BY, KG, KZ, MD, RU, TJ, TM; RW: AT, BE, BF, BJ, CF, CG, CH, CI, CM, DE, DK, ES, FI, FR, GA, GB, GR, IE, IT, LU, MC, ML, MR, NE, NL, PT, SE, SN, TD, TG. (English). (World Intellectual Property Organization). CODEN: PIXXD2. CLASS: ICM: A01N025-26. ICS: B01J002-00. APPLICATION: WO 1996-US13677 23 Aug 1996. PRIORITY: US 1995-2901 29 Aug 1995. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemical Bioregulators) A compn. comprising a mononucleate sulfonylurea herbicide particle coated with a water-insol.In this article, certain chemicals are used. Some of their cas registry numbers are 2702-72-9 and 90982-32-4 coating material has a diam. in the range of 0.5 to 50m. This compn. is made by a process which results in nonagglomeration of the coated particles. In a particular embodiment, a compn. comprises a mononucleate herbicide coated with either wood rosin, rosin derivs., waxes, fatty derivs., sterols, long-chain sterol esters and sulfur. Alternatively, the coating material may be a water-insol. synthetic latex polymer. The compn. may by used in a mixt. which also includes a herbicide partner comprising a solid particle. The partner ordinarily degrades the solid herbicide when stored or aged together as a solid particle mixt. However, when the compn. solid particle is coated, this degrdn. is prevented. .