Pollen suppressant for Liliopsida plants comprising a 5-oxy-substituted cinnoline.

摘要

Pollen is suppressed in Liliopsida by use of compounds of the formula <CHEM> wherein X represents a group of the formula OR<1> wherein R<1> represents a C1-C4 alkyl optionally substituted with a C1-C4 alkoxy group; or C2-C4 alkenyl and R represents phenyl or phenyl substituted with one to three halogen atoms or C1-4 haloalkoxy; or an agriculturally acceptable salt thereof are disclosed along with methods to produce hybrid seed in self-fertilizing plants.