窄叶西南红山茶扦插育苗技术研究_生物科学.doc

摘  要

　　　为了在扩大繁殖窄叶西南红山茶的同时保证木本的优良性状，进行窄叶西南红山茶的扦插育苗技术研究。本试验从三种不同生根剂、三个不同下端节长度处理、两种不同剪口方法对窄叶西南红山茶的生长性状进行了研究，最后结果显示生根剂有助于根部和茎部的生长，其中以吲哚乙酸的效果最好，成活率相比于对照组提高了13.4%，地径、苗高、叶片数平均值分别达到0.09610㎝、8.4㎝、5.4片，最长根有5.0㎝。斜形切口的生根情况和生长性状平行切口的要好，斜形切口平均地径比平口组高0.0094㎝，平均苗高高1.05㎝，叶片数、发根数、最长根都比平口组高；而长度处理就没有特别显著的生长性状提高的现象。所以通过本次试验，可以得出结论为：在进行窄叶西南红山茶扦插的时候，要选用穗长在3～3.5㎝左右，以吲哚乙酸溶液浸泡的插穗进行扦插。

关键词：窄叶西南红山茶；扦插；扦插方法筛选

ABSTRACT

　　　The cutting breeding techniques experiment of Camellia pitardii Cohen-Stuart was performed to expand reproduction and keep its good traits. In this test, the growth traits of Camellia pitardii Cohen-Stuart were studied under different rooting agent, length and notches. The result showed that rooting agent can progress the growth of root and stalk, and IAA did the best. Compared with the control group, the survival rate increased 13.4%. the average of diameter, height, the number of leaf and root have reached 0.09610㎝、8.4㎝、5.4 leaves and 3.5㎝respectively, and the longest root have reached 5.0㎝. The growth traits of inclined cutout were better than crosscut incision,and inclined cutout was 0.0094cm thicker than crosscut incision on average diameter, 1.05㎝ higher on average height, leaf number, root number and the longest root were also higher than the crosscut incision .But rooting agent did litte particularly significant appearance on improving growth traits. The conclusion told us that we can choose the inclined cutout spike bar whose ear length is about 3 to 3.5 cm and were soaked in IAA before the cultivation.

Key word: Camellia pitardii Cohen-Stuart; cuttage; cottage screening