<正>在江苏省南京、宜兴两地对金钱松(Pseudolarix amabilis (Nelson) Rehd.)人工林群体的开花特性进行了观察。结果表明,金钱松人工林群体中个体间的开花量、花粉粒形态大小及花粉发芽率等性状都存在明显的差异。金钱松花粉发芽特点与落叶松(Larix ssp)和花旗松(Pseudotsnga menziesii (Mirbel) Franco) 的花粉发芽特点具有相似性。花粉在一般的蔗糖琼脂培养基上难以发芽,在Brewbaker和Kwaek的培养基上则发芽良好。此外,对金钱松的良种选育问题也提出了讨论。

An investigation of flowering characteristics of goldenlrach (Pseudolarix ama-bilis (Nelson) Rehd) made in 1984 in three plantations in Nanjing and Yixin. Jiangshu province showed that between individual plants there were significant differences in the number of male and female strobili anb their ratios, in the length of pollen grains and in the pollen germination percentage. It appeared that the germination behavior of goldenlarch pollen grains followed the similar pattern of those of Douglas fir (Pscudotsuga menziesii) and larch (Larix sibirica) that they could not germinate on agar with sucrose but did very well on brewbaker and Kwack’s media. A brief discussion on the selection and breading of goldenlarch according to its flowering characteristics is made.