橄榄优良品系G18适应性试验

Adaptability Test on the Superior Strain'G18' of Canarium album

在高州市三个试点开展橄榄G18品系适应性试验，结果如下：利用8～9年生橄榄树改接后第4年及1年生砧木嫁接后第9年，其平均单株产果量达22．9kg，单株平均增产15．1kg，产量增益216．82％；平均单位树冠投影面积产果量达0．77kg／m^2，平均增产200．01％；试点间单株产果量和单位树冠投影面积产果量的变异系数（CV）分别接近或小于试点内的CV；改接株平均冠幅生长量与对照接近，但1年生砧木嫁接株的比对照大18．75％。G18嫁接亲和性较好，生长较快，丰产性好，立地适应性强，是一个值得在生产上大力推广的优良品系。

The adaptability test was made on the superior strain＇ G18＇ of Canarium album in Gaozhou city. The results as follows ： In the 4th year after grafting ＇ G18＇ on the 8 - 9 years old tree or in the 9th year after grafting ＇ G18＇ on the one year old stock, the average yield of single plant was 22.9 kg, its increase production was 15.1 kg, increased by 216.82% on average, and the yield of unit crown projection area was 0.77 kg/m^2, increased by 200.01% on average. The CV of yield per plant and per crown projection area among trials locations was close to or less than the CV inside the trials location. The grafted tree crown growth made no obvious difference, but that on the one year stock increased by 18.75% compared to that of the control. Results showed that the superior strain＇ G18＇ of Canarium album features good graft compatibility, fast growth, high productivity and strong adaptability, It＇s a fine strain suitable for extension in large scale.