秤锤树嫩枝扦插过程中营养物质含量的变化  

Changes of Nutrient Contents in Soft-wood Cuttings of Sinojackia xylocarpa during the Process of Rooting

作　　者：徐丽萍[1,2] 上官新晨[3] 喻方圆[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]江苏紫琅职业技术学院,江苏南通226001 [3]江西农业大学江西省高校天然产物研究与开发重点实验室,江西南昌330045

出　　处：《江西农业大学学报》2012年第1期50-53,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：2008国家林业局林业科技成果推广计划项目;江苏高校优势学科建设工程资助项目

摘　　要：对秤锤树嫩枝扦插过程中的一些营养物质的含量进行测定。结果表明:在插后0～7 d、14～28 d期间,即愈伤组织、不定根的形成期间,嫩枝插穗内的可溶性糖、蛋白质和磷元素的含量明显下降,其中来自2 a生母树插穗处理组7 d时代谢活动旺盛,消耗的可溶性糖下降的最多,下降率达到67.9%;C/N值除了来自2 a生母树插穗处理组波动幅度大,在14 d时达到峰值6.48,其余各组变化不大。Changes of nutrient contents in soft-wood cuttings of Sinojackia xylocarpa during the process of rooting were studied.The results showed that： during the rooting period of 0-7 days and 14-28 days when callus and adventitious roots formed respectively,the contents of soluble sugar,starch,soluble protein and phosphorus decreased obviously,among which the content of soluble sugar in the treatment of stems from 2-year seed tree had the highest reduction,up to 67.9% on the 7th day compared with that on the 0 day,The value of C/N ratio changed slightly,except that of the treatment of stems from 2-year seed tree which reached the peak of 6.48 on the 14th day.

关 键 词：秤锤树 插穗 营养物质 

分 类 号：S723.132.1[农业科学—林木遗传育种]