油茶无性系引种与良种筛选试验

摘要

引进长林3号、长林4号、长林18号、长林21号、长林23号、长林27号、长林40号、长林53号、长林55号、长林166号10个油茶无性系,在青田县进行引种栽培试验,分析各无性系的造林成活率、生长量、早实丰产特性、果实经济性状和油脂营养性状,结果表明:10个参试无性系在试验地造林成活率、5年后保存率均较高,平均分别为95％、92％;各无性系生长性状和单株产量指标差异较大,4号、53号、18号、166号、40号的树高、树冠生长量均较大,4号、53号、1 8号、166号的单株产量最高;果实经济性状指标和油脂营养性状均较对照品种优良,果油率平均值为7.68％,比对照高25.28％.综合分析得出,长林4号、18号、53号、40号、166号5个品种在试验地适应性强,生长迅速、结实量大、果实经济指标及油脂营养成分优良,可作为主推品种在该区域推广,3号、21号、23号、27号、55号可作为配栽品种少量搭配推广.%Ten different Camellia oleifera clones were introduced and cultivated in Qingtian,Zhejiang province from Research Institute of Subtropical Forestry in 2006.Observations were made on survival rate of afforestation,growth,fruiting properties,fruit economic traits and extracted oil nutritional (t..ts).The results showed that mean survival rate of afforestation and conservation rate in the 5th year of the 10 tested clones was 95％ and 92％ respectively.It had great differences of growth and single tree yield among clones.Fruit economic traits and nutrition properties of oil of introduced clones were better than that of the control.Comprehensive analysis indicates that tested 5 clones had advantages of strong adaptability,rapid growth,large yield,and good fruit economic indexes and oil nutrition components,and recommended to be extended in the tested area.