川南地区梁山慈竹无性系选优研究

Study on Clonal Selection of Dendrocalamus farinosus in South Sichuan

梁山慈(Dendrocalamus farinosus),是一种优良的纸浆用竹种,是目前宜宾市的主要造纸竹种之一。研究以竹材高产量为选育目标,综合考虑生长适应性,选取了地域分布不同的11个无性系,通过各无性系在同一立地条件下的表现,选出了优良无性系2号(选取于兴文县麒麟乡),其生长量指标为:平均发笋量17.7株、胸径5.0 cm、竹高6.7 m、平均单丛秆重17.80 kg,适应性强,性状表现稳定并具有较强的抗逆性。

Dendrocalamus farinosus(Keng et Keng F.)Chia et H.L.Fung is an excellent paper-pulp bamboo species,and is one of the main paper-making bamboo species in Yibin at present.The goal of this study was to select high yield bamboo species,and the growth adaptability was comprehensively considered.11 clones with different geographical distribution were selected.At last,excellent clone No.2(found from Qilin,Xingwen)was selected through the performance of each clone under the same site condition.Its growth index was as follows:average shoot amount 17.7,DBH 5.0 cm,average height 6.7 m,average single cluster weight 17.80 kg,strong adaptability,stable performance and strong stress resistance.