STRIGOLACTONE RECEPTOR INHIBITOR, AGRICULTURAL COMPOSITION AND USE THEREOF, STRIGA SEED GERMINATION INHIBITOR, AND TRIAZOLE UREA COMPOUND

摘要

The present invention provides a strigolactone receptor inhibitor for plants, which contains, as effective component, at least one triazole urea compound represented by formula (I); an agricultural composition; a method for using this agricultural composition as, for example, a branching enhancer for plants; a Striga seed germination inhibitor that contains the triazole urea compound; and a novel triazole urea compound that is useful as a strigolactone receptor inhibitor for plants. In the formula, A represents a group represented by (A-1) or (A-2). R¹ and R² represent a hydrogen atom and so forth. R³ and R⁴ represent a hydrogen atom, an alkyl group having 1 to 20 carbons, a cycloalkyl group having 3 to 20 carbons, or an aryl group having 6 to 20 carbons and so forth. In addition, R³ and R⁴ may together form a ring.