东北地区早在四十年前即开始了日本落叶松的引种。日本落叶松早期(幼令)表现速生,有一定的生产潜力。为查明种源效应,我们开展了日本落叶松产地试验。本文仅就苗期试验结果初报如下。一、试验材料1.种子来源:供试日本落叶松种子有日本本洲中部原产区三个县和北海道的种子以及黑龙江、吉林、辽宁几个县和山东崂山人工林的种子。产地气候状况见表1。 As early as 40 years ago in Northeast China began the introduction of Japanese larch. Early Japanese larch (young orders) rapid performance, have some production potential. To identify the provenance effect, we conducted a Japanese larch origin test. This article only preliminary results of seedling test as follows. I. Test Materials 1. Source of Seeds: For the test, Larix kaempferi seeds are seeds of three prefectures and Hokkaido in the origin area of ​​central Honshu, Japan, and in several counties of Heilongjiang, Jilin and Liaoning and Laoshan plantations in Shandong. Climatic conditions of origin are shown in Table 1.