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该项研究以檫树自然分布区中10个省的27个檫树种源为材料,在全省设置4个试验点,进行了三次育苗造林试验。结果表明,檫树种源间主要遗传性状差异显著,种源间树高、胸径、材积的生长与产地的地理位置关系紧密。划分了五个种源区,以南带、中带为生产力较高的优良种源区。评选出适于我省的优良种源,它们是湖南的沅陵、攸县、郴州、隆回、平江;江西的赣州、乐平;广东龙川;福建拓荣。利用优良种源造林,增产效益显著,最优种源比最差种源树高、胸径、材积分别大25.6-60％、27.1-51.4％、49.2-312.4％。
Based on the provenance of 27 Castanopsis fargesa trees from 10 provinces in the natural distribution area of Castanopsis fargesii, 4 test sites were set up in the province and three afforestation experiments were conducted. The results showed that there were significant differences in the major genetic traits among the provenances of Castanopsis fissa trees. The growth of tree height, DBH and volume were closely related to the geographical location of origin. Divided into five provenance areas, with the southern zone, the middle zone with high productivity of good provenance area. Selected for our province’s good provenance, they are in Hunan Yuanling, Youxian, Chenzhou, Longhui, Pingjiang; Jiangxi Ganzhou, Leping; Guangdong Longchuan; Fujian Tak Wing. The use of good provenance afforestation, yield significant benefits, the best provenances than the worst provenances tree height, diameter, volume were 25.6-60%, 27.1-51.4%, 49.2-312.4%.