毛竹生长发育规律的调查分析

Survey and Analysis on Development Law in Phyllostachys heterocycla cv pubescens

毛竹不同于其它树种,有其独特的生长发育规律。为了掌握毛竹地下部分——竹鞭、笋芽的生长发育规律和竹笋成竹规律,在湖南省湘阴县进行了长期的调查研究,结果发现影响毛竹产量和质量的关键因素是毛竹地下部分的生长发育条件:竹鞭在疏松、肥沃、湿润、板岩或页岩发育的黄红壤中生长最为适宜;竹鞭在土层中分布深、生长壮实,鞭芽饱满、生活力强、萌发力强、发笋多,竹笋粗壮、成竹率高,新竹胸径大、竹竿高、出材率高。

Phyllostachys heterocycla cv pubescens, different from other tree species, has special development law. In order to grasp the development law of underground parts in P. heterocycla, bamboo rhizome and shoot development had been Surveyed and analyzed for a long term in Xiangyin County, Hunan Province. The results showed that the key factors affecting bamboo yield and quality were the development conditions of underground parts. Development of bamboo rhizome benefitted from loose, fertility and moist yellow-red soil formed by slate or shale. Bamboo rhizome distributed deeply, and rhizome buds were filled, with strong germinated ability and high shooting rate. Bamboo shoots were strong with high bamboo rate, and new bamboos had large diameter and high canes and high outturn rate.