2024年12月11日 星期三
株龄和插穗直径对甘蒙柽柳插穗成活率的影响
Effects of tree age and cutting diameter on survival rate of Tamarix austromongolica cuttings
2012年 第21卷 第4期 页码[111-113]    下载全文[0.4MB]  
Abstract

Effects of tree age and cutting diameter on survival rate of Tamarix austromongolica Nakai cuttings were researched, and rooting position of cuttings was observed. The results show that survival rate of T. austromongolica cuttings decreases with increasing of tree age (1-3 a, 5-10 a and 400-500 a) and with reducing of cutting diameter (0. 8-1. 4cm, 0. 5-0. 8 cm and less than 0. 5 cm). In which, survival rate of cuttings with tree age 1-3 a and diameter 0. 8-1. 4 cm is the highest with a value of 84. 13% , and that with tree age 400-500 a and diameter less than 0. 5 cm is the lowest with a value of 25. 43% . Rooting model of T. austromongolica cuttings has two types, which can root from cortex and callus of cuttings, meaning that the cuttings have stronger rooting ability. It is suggested that cuttings with diameter above 0. 5 cm should be selected for cutting propagation of T. austromongolica ancient tree.

关键词甘蒙柽柳; 古树; 株龄; 插穗直径; 成活率; 生根部位
Key wordsTamarix austromongolica Nakai; ancient tree; tree age; cutting diameter; survival rate; rooting position
作者姜凤琴, 康晓珊, 尹林克, 潘伯荣
所在单位中国科学院新疆生态与地理研究所 吐鲁番沙漠植物园, 新疆 吐鲁番 838008
点击量1236
下载次数1103
基金项目中国科学院干旱区生物地理与生物资源重点实验室项目(LBB-2010-012)