摘要
对湿地松扦插繁育技术进行研究,分析扦插方式、生根剂及其浓度和处理时长、扦插基质等因素对湿地松扦插生根成活的影响。结果表明:(1)湿地松容器扦插的成活率要显著高于苗床扦插;(2)不同生根剂类型及其浓度、扦插基质的湿地松扦插成活率均存在显著差异。5种生根剂中,采用IAA生根剂处理的湿地松扦插成活率均为最高。1 000 mg·L^(-1)的生根剂处理插穗5 min的扦插成活率均高于其它4种浓度的同种生根剂处理插穗15 h的扦插成活率。用1 000 mg·L^(-1)的IAA处理插穗基部5 min的扦插成活率高达97.5%。所以,湿地松扦插以1 000 mg·L^(-1)的IAA浸插穗基部5 min的生根剂处理为佳;(3)不同基质的湿地松扦插成活率差异显著。4种基质M1、M2、M3、M4中,基质M4的扦插成活率、平均侧根数量和长度均为最高。
Techniques of cutting propagation of Pinus elliottii were studied in this paper.And influence of cutting methods,rooting agents and its treatment methods,and cutting mediums on the survival rate of P.elliottii cuttings were analyzed.The results showed that the survival rate of container cutting was higher than that of seedling cutting.And there were significant differences of cutting survival rate among different rooting agents and its concentration.Among 5 types of rooting agents,the survival rate of P.elliottii cutting treated with IAA were the highest.And the survival rate of P.elliottii cutting treated 5 minutes with 1 000 mg·L-1 of rooting agents was higher than that of P.elliottii cutting treated 15 hours with other four concentration of rooting agents.The cutting survival rate of cuttings treated 5 minutes with 1 000 mg·L-1 of IAA was 97.5%.So,cuttings treated 5 minutes with 1 000 mg·L-1 of IAA was seen as the best treatment methods of rooting agents.Finally,there were significant differences of cutting survival rate among different cutting mediums.The cutting survival rate,quantity and length of lateral root of cutting medium M4 from medium M1,medium M2,medium M3 and medium M4 were the highest among all of cutting medium.
作者
黄逢龙
甘青
龚伟
傅小兵
刘大椿
杨春霞
Huang Fenglong;Gan Qing;Gong Wei;Fu Xiaobing;Liu Dachun;Yang Chunxia(Ji′an Forestry Science Research Institute,Ji′an Jiangxi 343011,China;Panlongjiang Forest Farm of Xiajiang County,Xiajiang Jiangxi 341409,China;Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China)
出处
《南方林业科学》
2018年第4期10-14,共5页
South China Forestry Science
基金
江西省科技计划项目(项目编号:2014BBF60025)
江西省林业科技创新专项(项目编号:201601)
江西省林业科学院公益项目(项目编号:2017511203)
关键词
湿地松
扦插
繁育
Pinus elliottii
cutting
propagation
