Agents for reducing transpiration of plants

US4943315A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenter Schulz · Ludwigshafen, DE
• Juergen Schubert · Meckenheim, DE
• Hubert Sauter · Mannheim, DE
• Klaus Grosmann · Schifferstadt, DE
• Johann Jung · Schifferstadt, DE

Key dates

• Filing date: Feb 6, 1989
• Grant date: Jul 24, 1990
• Expiry date: Feb 6, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N49/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Agents for reducing transpiration in plants and/or avoiding impairment to plants caused by heat and dry stress, comprising a synergistic mixture containing at least one acetylene compound of the formula I ##STR1## where the substituents have the following meanings R.sup.1 CH.sub.2 OH, COOH, CH.sub.2 OR.sup.4, COOR.sup.4 or CHXY, PA0 OR.sup.2 and PA0 Y OR.sup.3 or X and Y together are C.sub.2 -C.sub.5 -alkylenedioxy which is unsubstituted or mono-, di- or trisubstituted by C.sub.1 -C.sub.4 -alkyl, or are a doubly bonded oxygen atom, PA0 R.sup.2, R.sup.3 C.sub.1 -C.sub.8 -alkyl and PA0 R.sup.4 C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkoxyalkyl, C.sub.2 -C.sub.4 -haloalkyl, phenyl or C.sub.7 -C.sub.16 -phenylalkyl, and at least one phenylbenzylurea of the general formula II ##STR2## where the substituents have the following meanings R.sup.5 hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, phenyl or C.sub.7 -C.sub.16 -phenylalkyl and PA0 R.sup.6 -R.sup.11 hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy halogen, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, phenyl, phenoxy, nitro, cyano, …