Department of Biology, University of Calgary, Calgary, Alberta, Canada.
Planta. 1972 Sep;105(3):205-12. doi: 10.1007/BF00385392.
The flowering and inflorescence development of Chrysanthemum morifolium cv. Pink Champagne under non-inductive long days was promoted by exogenous application of GA5, GA3, GA4+GA7 or GA9 in combination with the cytokinin, BA. The combination of BA and GA5 was highly effective, BA and GA3 moderately effective. Applications of the GAs alone or BA alone also resulted in some flowering, with GA3 and GA5 being most effective. In general, the effects of GA and BA were synergistic, and the concentration of both growth substances was a limiting factor with regard to the number of plants flowering under long days. Only the concentration of GA was a limiting factor for inflorescence development, however. Simultaneous application of indole-3-acetic acid reduced inflorescence development in most treatments. Development to the stage of anthesis was in no case effected.
在非诱导长日照条件下，外源施用 GA5、GA3、GA4+GA7 或 GA9 与细胞分裂素 BA 联合处理可以促进切花菊‘粉香槟’的开花和花序发育。BA 与 GA5 的组合效果最佳，BA 与 GA3 的组合效果次之。单独施用 GAs 或 BA 也能导致一些开花，但 GA3 和 GA5 的效果最佳。一般来说，GA 和 BA 的作用是协同的，两种生长物质的浓度是影响长日照下开花植物数量的限制因素。然而，只有 GA 的浓度是花序发育的限制因素。吲哚-3-乙酸的同时施用会降低大多数处理中的花序发育。在任何情况下都不会达到开花的阶段。
