红花玉兰与白玉兰播种育苗效果的对比研究  

Compare Studies on the Seedlings of Magnolia wufengensis and Magnolia denudata

作　　者：郝跃[1] 彭祚登[1] 马履一[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《北方园艺》2010年第4期101-104,共4页Northern Horticulture

基　　金：国家林业局重点资助项目(2006-39);北京市教育委员会学科建设与研究生培养项目

摘　　要：对在北京播种的红花玉兰1 a生实生苗的生长规律及苗木质量进行调查,比较红花玉兰和白玉兰在形态及生理指标上的生长差别,并对观测和试验结果进行分析。结果表明:红花玉兰苗高、地径的生长规律符合苗木的S型生长曲线,可用Logistic曲线拟合,因此将幼苗的生长划分为4个时期,分别为出苗期3月22日到5月21日、生长初期5月22日到6月29日、生长旺期6月30日到9月1日、生长后期9月2日以后4个时期。同等栽培条件下,红花玉兰形态方面的生长情况明显优于白玉兰;生理方面,红花玉兰在纤维素含量及根系活力方面明显高于白玉兰,且差异显著。Researching on the quality and the growth laws of Magnolia wufengensis＇ one-year old seedling, which were sowed in Beijing. And compared the growth different between Magnolia wufengensis and Magnolia in the morphological and physiological indicators. The results indicated that Magnolia wufengensis＇ growth patterns of height and caliper were fitted for ＂S＂ curves and can be simulated with Logistic equation. At the same time,the growing period was divided into 4 stages according to its growth rate,which were the emergence phase of seedling（from March 22 to May 21）,initiation phase of seedling growth（from May 22 to June 29） ,prosperous phase of seedling growth（from June 30 to September 1） and later phase of seedling growth （after September 2）. Under the same conditions Magnolia wufengensis grows better than Magnolia denudate seedlings in morphology. In physiology, cellulose content and root activity of Magnolia wufengensis were superior to Magnolia denudate, and the differences were significant.

关 键 词：红花玉兰 播种育苗 苗木质量 

分 类 号：S685.15[农业科学—观赏园艺]