摘要
对唐古特白刺嫩枝扦插繁殖技术研究结果表明,应用激素处理唐古特白刺插穗,可大大提高嫩枝扦插的成活率。其最佳配比组合分别为ABT B2、IAA B1、GA B1、NAA B4、IBA B4,分别比对照提高了34.00%、27.33%、26.33%、25.66%、19.00%;对根系长度、新枝长度、叶片数和叶片长度增效最大的激素组合分别是IAAB1、NAAB2、IAAB1和NAAB2,增幅分别是对照区的1.41倍、2.20倍、1.53倍和1.40倍;对插穗生根增效作用最强的组合是IBAB2、B3、B4,其增幅高达2.32倍;激素与根数和成活率呈极显著正相关(P<0.01)和显著负相关(P<0.05),而与根长度、新生枝长度、叶片数量和叶片长度的关系不密切;浓度与各生长指标均无密切关系。
The study on the shoot cutting propagation techniques of Nitraria tangutorum L.suggested that,using five hormones treat the shoot cutting seedling,raise survival rate greatly.The optimum mix ratio,respectively ABT B2,IAA B1,GA B1,NAA B4,IBA B4,respectively,compared with the control increased 34.00%,27.33%,26.33%,25.66%,19.00%;pairs of root length,the new branch length,leaf number and leaf length of the synergistic combination of the largest hormones are IAAB1,NAAB2,IAAB1 and NAAB2,increases the control area,respectively 1.41,2.20,1.53 and 1.40 times;pairs of cuttings rooting the strongest combination of synergy is the IBA B2,B3,B4,its growth rate up to 2.32 times;hormones and root number and survival rate was very significant positive correlation（P 0.01） and significant negative correlation（P 0.05）,while the root length,new branch length,leaf number and leaf length of the relationship is not close;concentration and there was no close relationship between the growth parameters.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2009年第4期80-86,共7页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
南京中医药大学公益基金CAFYBB2007026
国家林木种质资源平台建设项目2004DKA30400-05
关键词
唐古特白刺
干旱地区
无性繁殖技术
激素
浓度
Nitraria tangutorum L.
arid regions
asexual reproduction technology
hormones
concentration
