【摘要】 通过盆栽试验,研究了不同浓度(0%,0.1%,0.3%,0.6%)的磷酸二氢钾(KH2PO4)对"银拖"墨兰生长发育的影响,结果表明:喷施0.1%~0.6%磷酸二氢钾对其生长发育有显著影响,能增加"银拖"墨兰的花箭长度和使其开花期提前,其中喷施0.1%可增加叶片的长度及促进叶绿素含量的增加,喷施0.3%可增加叶片的宽度和促进叶片可溶性糖含量增加。更多还原

【Abstract】 In this experiment, spraying three different concentrations of potassium dihydrogen phosphate(KH2PO4) on the seedling of "Silver drag" Cymbidium, its growth and development had been investigated. Themorphological characteristics, content of chlorophyll and soluble sugar were measured after the "Silver drag"Cymbidium had been spraied with solution of KH2PO4(0.1%, 0.3% and 0.6%, respectively) for 15 days. Compared with the control group(0% KH2PO4), the leaf’s length and width of "Silver drag"Cymbidium, and the flower arrow’s length have been significantly increased by 1.67 cm when sprayed 0.1% and 0.3% KH2PO4. Spraying 0.1%-0.6% KH2PO4 can obviously accelerate thd flowering of "Silver drag" Cymbidium. Spraying 0.1% KH2PO4 may significantly increase the content of the chlorophyll while 0.3% KH2PO4 can significantly increase the content of soluble sugar than other treatment.更多还原