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兰考泡桐是泡桐属中一个优良类型,其突出特点是生长快。因此被广泛引种栽培,生产上发展很快。我们于1979年从河南引进桐根121万株,进行了大面积育苗试验,育苗1,000余亩。为了探讨引种兰考泡桐的育苗方法,确定其推广价值,固定了四个试验观察点,观察苗期的性状表现。引种结果,出圃苗80万株,高4米、地径5厘米以上的壮苗占57%,最高达6.13米,最大地径12.3厘米。现将情况介绍如下。一、引种目的兰考泡桐在泡桐属中速生特性表现的比较突出,比本地南方泡桐生长快。因此,企图通过引种手段,改变它对生态条件的遗传反应,
Paulownia paulownia Paulownia is an excellent type of its prominent feature is the rapid growth. It is widely introduced cultivation, the rapid development of production. In 1979, we imported 121,000 Tong root from Henan and conducted a large-scale nursery experiment to raise more than 1,000 acres of nursery plants. In order to explore the introduction of Paulownia paulownia nursery methods, to determine the value of its promotion, fixed four experimental observation points, observe the seedling traits. The introduction of the results, Nuchiao 800000 plants, 4 meters high, more than 5 cm diameter seedlings accounted for 57%, up to 6.13 meters, the maximum diameter of 12.3 cm. Now the situation is as follows. First, the introduction of the purpose of Lantana Paulownia Paulownia in the fast-growing characteristics of the more prominent, faster than the native southern Paulownia growth. Therefore, attempting to change its genetic response to ecological conditions by introducing means,