摘  要

　　　為了在擴大繁殖窄葉西南紅山茶的同時保證木本的優良性狀，進行窄葉西南紅山茶的扦插育苗技術研究。本試驗從三種不同生根劑、三個不同下端節長度處理、兩種不同剪口方法對窄葉西南紅山茶的生長性狀進行了研究，最后結果顯示生根劑有助于根部和莖部的生長，其中以吲哚乙酸的效果最好，成活率相比于對照組提高了13.4%，地徑、苗高、葉片數平均值分別達到0.09610㎝、8.4㎝、5.4片，最長根有5.0㎝。斜形切口的生根情況和生長性狀平行切口的要好，斜形切口平均地徑比平口組高0.0094㎝，平均苗高高1.05㎝，葉片數、發根數、最長根都比平口組高；而長度處理就沒有特別顯著的生長性狀提高的現象。所以通過本次試驗，可以得出結論為：在進行窄葉西南紅山茶扦插的時候，要選用穗長在3～3.5㎝左右，以吲哚乙酸溶液浸泡的插穗進行扦插。

關鍵詞：窄葉西南紅山茶；扦插；扦插方法篩選

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