摘要
华山松种源试验表明，不同种源场圃发芽率、苗高、保存率存在极显著差异，这些苗期性状差异与地理纬度呈负相关。５、６、１９号种源表现优异，场圃发芽率、苗高和保存率均高于种源平均值。各种源７月份进入速生期，７、８月份苗高生长量占全年的２６％左右，１０月开始陆续封顶。
The provenance test of Pinus armandi showed that the difference of the germination rate, seedling height and survival rate is significant among provenaces. The difference is mainly negtive correlated with latitude. Provenance-5, provenance-6 and provenance-19 are excellent for their germination rate, seedling height and survival rate are all higher than the averages. The fast-growing phase of the different provenance is in July, the increament in July and August is about 26% of total increament in the whole year and stops in October.
出处
《陕西林业科技》
北大核心
1996年第3期15-17,共3页
Shaanxi Forest Science and Technology
关键词
华山松苗期
种源试验
Pinus armandi
Seedling stage
Provenance test
