文献类型：期刊文献

中文题名：种苗大小对当归成药期早期抽薹和生理变化的影响

英文题名：Effects of seedlings with different root diameters on Angelica sinensis early bolting and physiological changes during the medicine formation period

作者：邱黛玉[1];蔺海明[1];方子森[1];李应东[2]

第一作者：邱黛玉

机构：[1]甘肃农业大学农学院;[2]甘肃中医学院

第一机构：甘肃农业大学农学院

年份：2010

卷号：19

期号：6

起止页码：100

中文期刊名：草业学报

外文期刊名：Acta Prataculturae Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：农业部"948"项目(2009-Z19);国家科技支撑计划项目(2007BAI37B00);甘肃省生物技术专项(GNSW-2007-02)资助

语种：中文

中文关键词：当归;种苗;抽薹;生理变化;成药期

外文关键词：Angelica sinensis ; seedling; bolting; physiological change; medicine formation period

摘要：通过研究不同大小种苗移栽后到抽薹前后当归茎叶和根部蛋白质、游离氨基酸、可溶性糖含量变化动态,探索种苗大小对当归成药期抽薹的影响和抽薹前生理变化规律,为当归早抽薹提供一定的营养控制理论依据。结果表明,种苗根直径越大,其茎叶和根中可溶性蛋白质含量越高,抽薹前茎叶蛋白质含量呈"增-降-增"的变化趋势,根部呈"W"形变化;茎叶游离氨基酸含量呈"W"形变化,含量随根直径增大而减小,抽薹植株出现之前根部含量随直径增大而增大,之后波动下降,有抽薹发生后则表现相反趋势;可溶性糖含量随根直径的增大而增加,根直径较小种苗移栽后茎叶中可溶性糖含量一直呈上升趋势,而根直径较大种苗则在抽薹发生后迅速下降。在抽薹发生前的生长过程中,根直径较小种苗移栽后地上部分蛋白质、可溶性糖含量低,游离氨基酸含量高,不利于早期抽薹的发生,而根直径较大种苗则相反,易于早抽薹。
The changing dynamics of soluble protein, free amino acids and soluble sugar content in the stems, leaves and roots before plant bolting were studied to explore the effects of seedlings with different root diameters on plant bolting and physiological changes with the objective of providing a theoretical basis for Angelica sinensis nutritional control to restrain early bolting. The thicker the root diameter, the higher the soluble protein content in stems, leaves and roots before bolting. The soluble protein content initially increased, then decreased and finally increased in the stems and leaves, but the pattern was the reverse in the roots. Free amino acids in the stems and leaves decreased with an increase in seedling root diameter and in the roots, it increased before bolting plants appeared in the field, then decreased with fluctuations until some bolting plants appeared. Soluble sugar content increased with an increase in root diameter. It increased in both stems and leaves when the thinner root diameter seedlings were transplanted but it decreased rapidly after plant bolting in seedlings with thicker root diameters. During the growing period before bolting, low soluble protein and soluble sugar content, and high free amino acid content in the stems and leaves were not conducive to the occurrence of early bolting in plants with thinner root diameters, but otherwise promoted bolting.