修剪对6种地被竹高生长的影响

Height growth regularity of six dwarf bamboo's culm

调查了修剪对黄条金刚竹(Sasaella masamuneanaf.aureostriata)、铺地竹(Arundinaria argenteostriata)、鹅毛竹(Shibataea chinensis)、菲白竹(Arundinaria fortunei)、靓竹(Sasaella glabraf.albo-striata)、翠竹(Arundinaria distichus)高生长规律的影响。结果表明:全剪后竹子生长周期延长,但高度降低,与未修剪相比,黄条金刚竹降低了60 mm,靓竹降低了34 mm,铺地竹降低了71 mm,菲白竹降低122 mm,翠竹降低了41 mm,鹅毛竹降低了413 mm,6种地被竹的竹秆高生长都呈现"慢—快—慢"的生长规律,各竹种高生长与出土时间的关系呈"S"形曲线。

The growing process of six dwarf bamboo, i. e., Sasaella masamuneana, Arundinaria argenteostriata, Shibataea chinensis, Arundinaria fortunei, Sasaella glabra f. albo-striata, Arundinaria distichus, were investigated. The results showed that the period of their growth was postponed after clear-cut but the height dropped. The dropping height was 34 mm, 41 mm, 60 mm, 71 mm, 122 mm, 413 mm for Arundinaria argenteostriata, Sasaella glabra f. albo-striata, Sasaella masamuneana, Shibataea chinensis,Arundinaria fortunei, Arundinaria distichus, respectively. Height growth of every bamboo presented slow--fast--slow with the time the growth curve presented type of ＂S＂.