摘要
为了研究利用嫁接苗开展油茶无性系鉴定的可能性,我们于1980年3月,用当年1月嫁接成活的芽苗砧嫁接苗,营造了面积为0.5ha的试验林。几年来,我们系统地观察了整个林分和各个无性系的生长发育过程,每年按株验产,经过统计分析。
The result of the test comparing Camellia oleifera clones is showed in this paper. The test was established on 13th, March, 1980 planting the nurse seed graftings grafted two months ago. There are 24 clones in the tost with offsprings from one clone as a control. Every clone has six plants in a spot, and there are six spots containing 36 plants for each clone. The distance from one plant to another is about 1.67 meters. The experiment field is about 0.5 hectares all together.
The test indicates that the graftings generally began to flower in the second year after planting, about one or two years earlier than seedlings. There are a lot of differences between the graftings and the seedlings, even on the growth period and on the appearance of the plant. At the same time, it is easily to recorgnize one clone from the others. Most of the clones began to bear fruit aboundently in 1984. From 1984 to 1987, the average yield for clones was higher than the yield of seedling by 12.4％. Seven of them got much higher, even over 30％. Except that two clones were more sensitivity to some deseases, five clones were recomended as the better ones for the oil production. They are 51-27, 817, 12-6, 3-3, and 9-8. Their average yield reached 498. 21 kilogrames a hactare each year during the past four years.
According to the test, we find that it is possible to select the best clones by noticing their growth characteristics, flower period, and the rate of oil containing in whole fruit if they bear fruit normally and free of the main deseases.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1989年第4期375-381,共7页
Scientia Silvae Sinicae
关键词
油茶
芽苗砧嫁接
无性系
Camellia oleifera
the nurse seed grafting
Clone
