2年生东北山梅花苗木生长分析

Growth Analysis of 2-year-old Philadelphus schrenkii Seedlings

为培育优质东北山梅花绿化大苗,采用不同密度换床移植的方法,对东北山梅花2年生换床苗进行移栽密度试验,并与留床苗进行比较。结果表明:东北山梅花2年生苗移栽密度在30~60 cm×30~60 cm间生长表现无显著差异,平均苗高、地径、分枝数,分别大于85 cm、0.7 cm和9个;疏苗定植的2年生留床苗平均苗高、地径及分杈数量,分别为103.97 cm、0.83 cm和14个以上,各指标均明显好于换床苗。因此,东北山梅花播种苗第2年适宜疏苗留床生长,有利于缩短绿化苗培育周期,提高苗木质量。

In order to cultivate high-quality large green seedlings of Philadelphus schrenkii,the transplanting density test was conducted on the 2-year-old Philadelphus schrenkii with transplanted seedlings by using the method of transplanting in different densities,and the result shows that:There is no significant difference in the growth performance of Philadelphus schrenkii seedlings within the transplanting density between 30 cm-60 cm×30 cm-60 cm,and the average seedling height,ground diameter,and number of branches are greater than 85 cm,0.7 cm&9 respectively;the average seedlings of the 2-year-old bed seedlings with sparse seedlings and colonization.The height,ground diameter&number of branches is 103.97 cm,0.83 cm and more than 14 respectively,and all the indexes are significantly optimal than that of the bed seedlings.Therefore,it is appropriate for 2-year-old Philadelphus schrenkii to thin the seedlings and stay in the bed to grow,which is conducive to shortening the cultivation cycle of greening seedlings and improving the quality of seedlings.