PROBLEM TO BE SOLVED: To provide a novel plant growth regulator having high efficiency in a culture of crops such as banana culture.SOLUTION: A plant growth regulator for culture plants contains a heterocyclic compound represented by the general formula (I), where A represents a nitrogen atom or C-hal, where hal represents a halogen atom, B represents a nitrogen atom, R1 represents a halogen atom, an alkyl group or a cycloalkyl group, R2 represents a hydroxyl group, an alkoxy group, a benzyloxy group, a benzyloxy group having one or more substituents on a ring, and a phenylamino group may have a substituent on the ring.COPYRIGHT: (C)2014,JPO&INPIT【課題】バナナ栽培等の作物の栽培における新たな、効果の高い植物成長調節剤の提供。【解決手段】一般式(I)(式中、Aは窒素原子又はC-hal(式中、halはハロゲン原子を示す。)を示す。Bは窒素原子を示す。R1はハロゲン原子;アルキル基又はシクロアルキル基を示す。R2はヒドロキシル基;アルコキシ基;ベンジルオキシ基;1以上の置換基を環上に有するベンジルオキシ基;置換基を環上に有してもよいフェニルアミノ基を示す。)で表されるヘテロ環化合物を有効成分として含有することを特徴とする栽培植物用の植物成長調節剤。【選択図】なし
