2024年10月31日 星期四
楸树不同无性系枝条萌芽力及催芽条件初探
Preliminary study on sprouting capability and sprouting condition of branches of different clones of Catalpa bungei
2014年 第23卷 第1期 页码[104-106]    下载全文[0.7MB]  
Abstract

Sprouting capability of two-year-old branches from 28 clones of Catalpa bungei C. A. Mey. were compared, and sprouting capability of C. bungei ‘ Jinsi’ branch with different diameters and effects of bed temperature and room temperature on sprouting capability of C. bungei branch were analyzed. The results show that sprouting capability of C.bungei and C. bungei ‘Jinsi’branches are higher with the values of 6. 4 and 5. 8, respectively. Sprouting capability of C.bungei ‘Sanlie’, C. bungei ‘Xinye’and C. bungei ‘Changguo’branches are lower with the values of 1. 0, 1. 3 and 1. 4,respectively. The branch sprouting capability relates to branch diameter, temperature, relative humidity and sprouting time. The suitable sprouting condition of C. bungei branch is preliminarily confirmed, that is, branches with diameter above 1. 5 cm under bed temperature 15 ℃-20 ℃, room temperature 20 ℃-25℃and relative humidity about 70% sprout for 50 d.

关键词楸树; 无性系; 萌芽力; 催芽条件; 枝条直径
Key wordsCatalpa bungei C. A. Mey.; clone; sprouting capability; sprouting condition; branch diameter
作者杨如同1, 李亚1, 石欣1, 王鹏1, 李超2, 汪庆1
所在单位1. 江苏省•中国科学院植物研究所(南京中山植物园), 江苏南京210014;
2. 安徽省颍上县黄桥镇农业综合服务中心, 安徽颍上236200
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基金项目国家自然科学基金资助项目(31200509); 江苏省科技公共服务平台项目(BM2012058)