摘要
挪威槭‘缤纷秋色’播种繁殖种苗易出现优良性状不稳定,树体内单宁含量较高,导致扦插难度系数大,成活率较低,影响了该树种的大面积推广应用。为揭示挪威槭扦插生根机理并解决扦插困难,以挪威槭‘缤纷秋色’为试验材料,采用三因素(生根剂类型、浓度和枝条部位)组合试验,观察插穗在扦插生根过程中的动态变化,并对各指标数据进行相关性分析,得出挪威槭‘缤纷秋色’最优生根处理。结果表明,处理8[NAA∶IBA(1∶1)500 mg·L^(-1)+上部枝条]生根率最高(93.22%),处理7[生根数以NAA∶IBA(1∶1)800 mg·L^(-1)+上部枝条]生根数最多(21.06),处理9[IBA∶NAA(1∶1300 mg·L^(-1)+中部枝条]与前两者平均根长均在4~5 cm,处理8的扦插生根指数较高,为94.81。综上可知,浓度NAA∶IBA(1∶1)500 mg·L^(-1)对‘缤纷秋色’扦插效果较好。
The fine characters of the seedling of Acer truncatum×A.platanoides'Warrenred'were unstable and the tannin content in the seedlings was high,a low propagation coefficient and lack of high-quality cutting seedlings have restrained the development of it plantation.In order to revealed the rooting mechanism and solving the cutting difficulties of Acer truncatum,using Acer truncatum×A.platanoides'Warrenred'as materials,a three factor(rooting agent,concentration and branch position)design experiment was conducted in this study.The dynamic changes of cuttings were observed and divided during the process of rooting.Finally,the related indexes of root system were measured using a root scanner were carried out obtain the best root handle.The results showed that the average rooting rate of the 8th treatment[NAA:IBA(1:1)500 mg·L^(-1)with upper branches deal]was 93.22%,the rooting number of the 7^(th)treatment[NAA:IBA(1:1)800 mg·L^(-1)with upper branches deal]was 21.06,it is greatest amount.The average root length of the 8^(th)treatment,the 7^(th)treatment and the 9^(th)treatment[IBA:NAA(1:1)300 mg·L^(-1)with middle branches deal]was 4-5 cm.The rooting index of the 8~(th)treatment was 94.81,the treatment of NAA::IBA(1:1)500 mg·L^(-1)with upper branches deal had the bester effect on cutting rooting.
作者
陈霞
蒋淑磊
党风梅
白霄霞
赵玉芬
CHEN Xia;JIANG Shulei;DANG Fengmei;BAI Xiaoxia;ZHAO Yufen(Hebei Academy of Forestry and Grassland Science,Shijiazhuang,Hebei 050061,China;Sciences Engineering Research Center for Floriculture,Shijiazhuang Academy of Agricultural and Forestry,Shijiazhuang 050041,China;Shijiazhuang Shenghe Agricultural Science and Technology Co.Ltd.,Shijiazhuang 050031,China)
出处
《黑龙江农业科学》
2023年第12期44-49,共6页
Heilongjiang Agricultural Sciences
基金
石家庄市科学技术研究与发展计划项目(211520172A,221520122A)。
关键词
挪威槭‘缤纷秋色’
生长调节剂
扦插
不定根
Acer truncatum×A.platanoides Warrenred
growth regulators
cutting progagation
adventitious roots
