摘要
对湘林系列5、14、15、18、40、166等6个油茶优良无性系的芽苗砧嫁接苗生长情况进行了调查。调查结果为:6个无性系平均成活率和抽梢率的变化范围分别为74.6%～96.2%和71.3%～93.6%,平均苗高和地径的变化范围分别为13.5～19.8 cm和0.303～0.356 cm,平均叶片数和冠幅值变化范围分别为8.7～12.7片/株和7.3～8.6 cm,平均根长和根幅变化范围分别为6.0～6.8 cm和4.7～6.5 cm。6个无性系平均成活率和抽梢率分别为85.0%和88.5%,分别大于对照5.0%和2.1%;平均苗高和地径分别为15.8 cm和0.33 cm,分别大于对照1.4 cm和0.022 cm;平均叶片数为10片/株,大于对照0.8片/株;平均冠幅、根长和根幅分别为8.0 cm、6.5 cm和5.4 cm,分别大于对照0.43 cm、0.25 cm和0.78 cm。湘林166和湘林5的芽苗砧嫁接苗生长表现较好,其平均成活率、抽梢率及苗高、地径、叶片数量、冠幅与根长等均较大;湘林15和湘林40则生长表现较差,其平均成活率、苗高、叶片数量等均略低于混合优良无性系(对照)苗。
The growth performances of grafted seedlings from Xianglin series 6 clones of Camellia oleifera （ i. e. XianglinS, Xiang- linl4, Xianglinl5, Xianglinl8, Xianglin40, Xianglin166） were investigated. The results showed that, the variation range of the aver- age survival rate and shooting rate of 6 clones were 74. 6% - 96. 2% and 71.3% - 93. 6% respectively, the variation range of the av- erage seedling height and ground diameter were 13.5 - 19. 8 cm and 0. 303 - 0. 356 cm respectively, the variation range of the average leaf number and crown were 8. 7 - 12.7 and 7.3 - 8. 6 cm respectively, the variation range of the average root length and root extension were 6. 0-6. 8 cm and 4. 7 -6.5 cm respectively. The average survival rate and shooting rate of 6 clones were 85.0% and 88.5% respectively, which were higher than those in control by 4. 8% and 1.6% respectively. The average seedling height and ground diame- ter were 15. 8 cm and 0. 33 cm respectively, which were higher than those in control by 1.4 cm and 0. 022 cm respectively. The aver- age leaf number was 10, which was 0. 8 higher than that of control. The average crown, root length and root extension were 8.0 cm, 6. 5 cm and 5.4 cm respectively, which were higher than those in control by 0. 43 cm, 0. 25 cm and 0. 78 cm respectively. The graf- ted seedlings from Xianglin5 and Xianglin166 grew well, and the average survival rate, the shooting rate, seedling height, ground di- ameter, leaf number, crown and root length of them were rather large. The grafted seedlings from Xianglinl5 and XiaaglindO grew poorly, and the average survival rate, seedling height and leaf number of them were lower than those in control.
出处
《湖南林业科技》
2013年第1期65-68,共4页
Hunan Forestry Science & Technology
关键词
油茶
湘林系列无性系
嫁接苗
成活率
苗高
叶片数量
Camellia oleifera
Xianglin series clones
grafted seedlings
the survival rate
seedling height
leaf number
