观赏凤梨催花栽培试验

文章对4个观赏凤梨常规品种进行不同催花剂、不同乙烯利浓度、不同处理温度的催花试验及基质对植株生长影响的试验。结果表明：乙烯利对凤梨催花效果显著，开花株率最高，花穗高度短；催花处理时的平均温度越高，诱导花芽发育的时间越短；各品种对乙烯利不同浓度的催花表现不同，在500，600，700mg／L浓度范围。彩苞凤梨开花率随乙烯利浓度的升高而降低，大红星凤梨、擎天凤梨和虎尾凤梨的开花率则随乙烯利浓度的升高而增高。基质以树皮80％＋松林下表土20％栽培效果最佳。

Study on Flower Stimulation and Cultivation of the Genus Guzmania and Vriesea, Bromeliaceae

Studies on flower stimulation and cultivation of the genus Guzmania and Vriesea focused on the following aspects: 4 varieties in total were included in the trial. The results indicated that, ethylene has the most significant effect on flower stimulation, with highest blossoming rate and the shortest pedicels. Time interval from stimulating treat to blossoming shortened as the increase of temperature. Response to the concentration of ethylene varied according to the varieties. With the concentration of 500, 600,700 mg/L, blossoming rate of Vriesea poelma-ni was inversely proportional to the concentration of ethylene. However, blossoming rate of Guzmania bonita,Guzmania calypso and Vriesea mergers, were directly proportional to the concentration. Heights of plants growing in the media of 80% bark +20% pine needle humus soil.