摘要
以糙叶杜鹃半木质化茎段为材料,采用KIBA、KNAA和Hormodin对插穗进行处理并测定不同生根期内可溶性糖和全氮的含量。结果表明:快蘸液态KIBA(3 000mg/L)处理对插穗生根具有显著影响,处理后的插穗生根率为92.55%,达到极显著水平;较高的C/N比有利于插穗生根,在扦插生根过程中碳水化合物是插穗不定根形成和生长所需的营养物质,在插穗愈伤组织的形成和根原基的发生期需消耗一定的可溶性糖;高浓度的氮素不利于插条的生根。
Chosen semi-woody stems of Rhododendron scabrifolium Franch.as the test material,handling cuttings with KIBA,KNAA and Hormodin,the soluble sugar and total nitrogen concentrations during rooting were determined.The results showed that quick dipped into liquid KIBA 3 000 mg/L had significant impact on rooting for cuttings,which obtained a higher rooting rate of 92.55%,and reached a significant level;Higher ratio of C/N was conducive to rooting cuttings,soluble sugar and nitrogen were critical nutrients for adventitious root formation and growth.During callus formation and root initiation,soluble sugar and nitrogen were high;High concentrations of nitrogen was not conducive to rooting cuttings.
出处
《北方园艺》
CAS
北大核心
2012年第10期90-92,共3页
Northern Horticulture
基金
贵州省科技重大专项资助项目
贵州省特色作物科特派"万元田"科技示范工程资助项目(黔科合重大专项字[2011]6001号)
贵州省农业科技攻关资助项目(黔科合NY字[2011]3076号)
关键词
糙叶杜鹃
扦插
激素
可溶性糖
全氮
Rhododendron scabrifolium
cuttings
hormones
soluble sugar
nitrogen
