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1987～88年,我们使用1000,1500,2000,3000,4000,5000ppm的PP333处理一串红(Salvia splendens)效果较好。一串红是当年6～7月新扦插的,经园艺栽培促使每钵植株生长健壮和有较多分枝。在8月下旬最后一次摘心后,用压缩式喷雾器将不同浓度的药液或清水均匀喷布在植株的叶片、分枝和杆上,以后加强水肥管理。施药处理的一串红植株,在7天左右叶片颜色加深,呈深绿色,25～30天进入盛花期。调查各个处理的植株高度和花序数及其长度,结果(表1)表明:(1)植株高度显著矮化;(2)处理后24天花序数增加,1500ppm处理更为显著,而48天后的各施药处理却有所减少;(3)花序轴节间长度缩短,尤以花序轴第一节
From 1987 to 1988, we used PP333 at 1000, 1500, 2000, 3000, 4000 and 5000 ppm to treat Salvia splendens better. A bunch of red is the new cuttings from June to July that year, horticultural cultivation to promote the robust growth of each pot plant and more branches. After the last topping in late August, compress the sprays of different concentrations of liquid or water evenly on the leaves, branches and poles of the plants to enhance the management of water and fertilizer. A bunch of red plants treated pesticides, leaf color deepening in about 7 days, dark green, 25 to 30 days into full bloom. The plant height, number of inflorescences and length of each treatment were investigated. The results (Table 1) showed that: (1) the plant height was significantly dwarfed; (2) the number of inflorescence increased 24 days after treatment and the treatment at 1500 ppm was more significant; Each application has been reduced; (3) Inflorescence internode length shortened, especially in the first section of the inflorescence axis