【作者】 张鸽香； 侯飞飞；

【机构】 南京林业大学风景园林学院；

【摘要】 本试验以风信子品种蓝夹克‘Blue Jacket’为供试材料,研究了叶面喷施不同浓度的多效唑PP₃₃₃对风信子生长和开花的影响,研究结果表明叶面喷施100mg·L^-1的PP₃₃₃延缓蓝夹克的生长,使植株适量矮化、叶面积适度减小,植株更紧凑;与对照相比,叶片厚度增加了5.8%;小花直径增加了2.8%;种球重量增加了5.3%;同时提高了植株叶片的叶绿素含量,将现蕾时间推迟4d,并使花期延长4d;总体上提高了蓝夹克的观赏价值。叶面喷施300mg·L^-1的PP₃₃₃因浓度较高,表现出一定消极作用。更多还原

【Abstract】 Plant materials was Hyacinth varieties namely the blue species Blue Jacket in this experiment.Through foliar spraying liquor of different concentrations of PP₃₃₃.the effects of t PP₃₃₃ to the growth and flowering of Blue Jacket was studied.The results of this paper were as follows:Foliar-spraying 100mg ? L^-1 of PP₃₃₃ was the best treatment.It decreased the growth rate,plant height and leaf area moderately. Compared to the control,the leaf thickness,flower diameter and quality of bulbs were increased by 5.8%.2.8%and 5.3%respectively.In physical,foliar-spraying 100mg ? L^-1 of PP₃₃₃ significantly increased the chlorophyll content in leaves.It delayed the appearance of flower buds for 4days.prolonged the florescence for 4days.and put off the senescence of hyacinth.Foliar-spraying 300 mg ? L^-1 of PP₃₃₃ showed negative effects because of the high concentration.更多还原