摘要
以广西贺州市国家级优质杉木种子园优良母树半木质化枝条作为插穗材料，采用完全随机试验设计及单因素试验设计，对影响杉木优良无性系扦插生根能力的基质、长度及扦插插穗进行研究。结果表明：5cm插穗插在河沙中的保存率最高、达100％；9em插穗插在河沙＋珍珠岩（1：1）中的生根率最高、达100％：根系形态生长最好的插穗长度及基质分别是9em、河沙＋珍珠岩（1：1）；根系活力最大的插穗长度及基质分别是7cm、河沙＋珍珠岩（1：1）。杉木茎段的保存率、生根率均高于顶芽，生根率为42．30％，但顶芽的根系生长旺盛。7-9cm的杉木插穗插在河沙＋珍珠岩（1：1）的基质上最有利于生根，可以提高杉木扦插苗的质量。
Using the completely random design and the single factor design, respectively, effects of media and cutting type on the rooting ability of Chinese fir cuttings were studied by the semi-lignified branches collected from superior trees in the seed orchard of Chinese fir in Hezhou. The results indicated that 5 cm cuttings in sand reached the highest smvival rate with 100% while 9 cm cuttings were satisfied in the mixed medium of sand and perlite （l：l） with 100% rooting rate and best morphologic characters. The root activity was the top in 7 cm cuttings and the mixed medium of sand and pcrlite （1：1）. The root of crown segments grew vigorously although its survival rate and rooting rate were lower than those of stem section. As a whole, 7-9 cm cuttings benefited the rooting in the mixed medium of sand and perlite （1：1）, which may enhance the cuttage reproduction quality of Chinese fir.
出处
《广东农业科学》
CAS
CSCD
北大核心
2013年第23期35-38,共4页
Guangdong Agricultural Sciences
基金
广西贺州市科技攻关项目(贺科攻1101001n)
关键词
杉木
扦插
基质
插穗类型
生根能力
Cunninghamia lanceolata
cuttage
medium
cuttings type
rooting ability
