牵牛花是典型的短日照植物,而且它在子叶阶段就能够接受光周期诱导而现蕾开花,因而非常适合冬季室内盆栽、观赏。只要掌握一定的栽培手段,不但可使其蔓茎矮化、直立,而且可使其花应要求而逢时盛开,为隆冬的居室平添盎然春意(如图)。莳养要点如下: 一、留种。头年秋季,精心采集优良品种的种子,标明颜色后晾干,分别收藏,以备来年有目的地单播或混播。 Morning glory is a typical short-day plants, and it is able to accept photoperiod-induced flower buds in the cotyledon stage, which is very suitable for winter indoor potted plants. As long as the mastery of certain means of cultivation, not only make it dwarfed, upright, but also make it flowers at the request of the time in full bloom, adding to the late winter room full of spring (Figure). Dian raise points are as follows: First, stay species. The first year of autumn, careful collection of fine varieties of seeds, indicate the color after drying, respectively, for collection, for the coming year purposefully unicast or mixed broadcast.