摘要
在南宁开展任豆扦插育苗试验,探讨扦插时间、插穗直径、插穗位置和生根促进剂等4个因素对任豆扦插育苗效果的影响。结果表明：扦插时间、插穗位置和插穗直径都是影响扦插效果的重要因素,在10—11月采集枝条下段、表皮褐色、有麻点、直径1.0-3.0 cm的插穗进行扦插效果最好,枝条中段、表皮绿色的插穗次之;2月在芽萌动以前扦插也能获得较好的扦插效果;枝条下段、直径0.5-1.0 cm的插穗成活率也比较高,但是生根数较少;CPD 500 mg·L-1没有显著促进生根的作用,这可能与插穗内源激素水平有关,也可能是因为生根促进剂类型或浓度不适合任豆。
cutting of Zenia insignis Chun was carried out in Nanning, and effects of 4 factors were tested. The resuh showed that timing, original positions and diameter of scions were important for the cutting. Lower segments of scions collected from Oct. to Nov. , with brown epidermis and dot hemps, diameter 1.0 - 3.0 cm performed best in cutting experiments,in the middle of segments of scions with green epidermis take second place. Cutting in Feb. before bud germination could get good effects as well. Lower segments of scion with diameter 0. 5 - 1.0 cm had high survival rate but less number of roots. Supplementing with 500 mg · L^-1 CPD did not significantly promote rooting,due to endogenetic hormones or the mismatch in agent types and concentrations.
作者
郝海坤
何英娟
黄志玲
彭玉华
侯远瑞
HAO Hai-kun HE Ying-juan HUANG Zhi-ling PENG Yu-hua HOU Yuan-rui(Guangxi Forestry Academy, Central South Key Laboratory Fast-growing Tree Cultivation ,State Forestry Administration ,Nanning 530002, Guangxi , China Luocheng Forestry Bureau ,Luocheng 546400, Guangxi , China)
出处
《福建林业科技》
2016年第3期187-191,共5页
Journal of Fujian Forestry Science and Technology
基金
广西林业科技项目(广西石漠化植被演替机理及优化恢复模式研究与示范
桂林科字[2014]02号)
广西林业科技项目(主要珍贵树种种质资源收集库建立及其利用技术研究
桂林科字[2013]第2号)
2013年中央财政林业科技推广示范基金项目(广西岩溶地区优良树种及其高效栽培模式推广示范
[2013]
TG10号)
关键词
任豆
扦插育苗
成活率
生根数
Zenia insignis
cutting
survival rate
number of root
