摘要
通过对樟树正常植株与患黄化病植株的3年生枝条的解剖特征进行比较研究发现,二者树皮构造中,表皮与周皮差异不太显著,但韧皮纤维维管束形态特征及组织比量、筛管比量差异较大,组织比量差异百分率分别为33%和41%,韧皮射线形状也由正常的喇叭状弱化为线形,表明病株的下行输导能力与横向输导能力较正常植株均呈减弱趋势。
The comparison on branch structure characteristic of 3-year-old camphor tree between the health ＆ the disease plant was studied.The results indicated that the difference between epidermis and periderm is not obvious,while the difference of the number of per bundle,tissue proportion,sieve cell proportion are significant and the difference are 33% and 41%,respectively.The shape of phloem ray attenuated from the normal shape,which like loudspeaker,to linear.The phenomenon showed that the transport ability from crown to bottom and cross transfer in diseased plant has been weakened.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2008年第4期482-485,共4页
Journal of Anhui Agricultural University
基金
安徽农业大学创新团队项目资助
关键词
樟树黄化病
树皮
构造特征
camphor tree yellowing
bark
structure characteristic
