瓜多竹引种栽培研究

对福建省华安县瓜多竹开展引种试验,研究其生长情况、出笋期、出笋量、病虫害情况、越冬受冻情况及各器官生物量分配等。结果表明:瓜多竹一年四季均有出笋,4月下旬至8月下旬出笋最多;新长竹子的竹高和地径均随竹龄增长而增大,竹林栽植第3年可逐渐郁闭成林;瓜多竹生物量大,竹材产量高,其地上部分干生物量占总生物量的77.15%~83.58%,其中以竹秆所占生物量比例最大,为58.26%~71.16%;瓜多竹长势高,根浅,容易被风吹倒,无明显病虫害影响,但受寒冷低温天气影响大,建议在试验地以南、受台风影响较少的地区进行引种栽培。

Introduction and Cultivation of Guadua amplexifolia

The introduction experiment of Guadua amplexifolia was carried out in Hua'an County of Fujian Province,which was studied from growth,growing period of bamboo shoots,number of bamboo shoots,pests and diseases,cold tolerance capacity and biomass distribution of various organs.The results showed that the bamboo shoots appeared in all seasons,most in late April to late August.The height and ground diameter increased along with bamboo age,and the bamboo forest could be gradually closed in the third year after planting.The biomass and bamboo wood production of Guadua amplexifolia were rich,and the dry biomass above ground accounted for 77.15%~83.58%of the total biomass,of which the bamboo stem had the largest biomass share which ranged from 58.26%to 71.16%.Due to the fact that the Guadua amplexifolia was tall,shallow-rooted and easy to be blown down by strong wind,which had no obvious diseases and pests,but greatly was infected by low temperature,it was recommended that Guadua amplexifolia should be planted to the south area of this test sites which was less affected by strong winds.