New plant growth regulators, including compounds and compositions, and methods of use including for promoting root growth. The compounds are carotenoid oxidation products, and a preferred example is 3-OH-β-apo-13-Carotenone. A method comprising promoting the growth of at least one plant with use of an effective amount of at least one composition comprising an effective amount of at least one compound which is represented by A-B-C, wherein B is a bivalent polyene moiety, A is a monovalent moiety linked to B by a six-membered carbon ring, wherein the ring has at least one substituent linked to the ring by an oxygen atom, and C is a monovalent moiety linked to B by a carbonyl group. Synergistic effects can be used with combinations of compounds.
新型
植物生长调节剂,包括用于促进根系生长的化合物和组合物以及使用方法。这些化合物是类
胡萝卜素的氧化产物,一个优选的例子是 3-OH-β-apo-13-Carotenone 。一种方法,包括使用有效量的至少一种组合物促进至少一种植物的生长,该组合物包含有效量的至少一种化合物,该化合物由 A-B-C 表示,其中 B 是二价多烯分子,A 是通过六元碳环与 B 连接的一价分子,其中该环具有至少一个通过氧原子与该环连接的取代基,C 是通过羰基与 B 连接的一价分子。化合物组合可产生协同效应。