|Table of Contents|

Dynamic Distribution Characteristics of Metal Elements in Different Parts of Bletilla striata and Its Effects on Effective Components of Tuber

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年22
Page:
81-87
Research Field:
Publishing date:

Info

Title:
Dynamic Distribution Characteristics of Metal Elements in Different Parts of Bletilla striata and Its Effects on Effective Components of Tuber
Author(s):
WANG Yong12XIONG Pengfei12ZHENG Ting12ZHOU Ying12ZHANG Jiachun12
(1.Guizhou Botanical Garden,Guiyang,Guizhou 550004;2.Key Laboratory for Biodiversity Conservation in Karst Mountain Area of Southwestern China of the National Forestry and Grass abd Administration,Guiyang,Guizhou 550004)
Keywords:
Bletilla striatametal elementsdynamic distributioneffective componentscorrelation
PACS:
S 567.239
DOI:
10.11937/bfyy.20241952
Abstract:
Tubers,roots and aboveground parts of Bletilla striata were used as test materials.The contents of heavy metals,trace elements and effective components from July to October were measured.The dynamic distribution characteristics were analysised,the relationship between the distribution of metal elements and effective components in different parts were discussed,in order to provide reference for the field management and rational fertilization in Bletilla striata.The results showed that the highest content of trace elements Fe,Mn,Zn in tubers appeared in October.The highest contents of Fe,Mn in root appeared in August,and the variation trend was August>September>October>July.There was no significant difference among Fe,Mn,Ni,Se,Zn in aboveground part from July to October.The highest contents of Cu appeared in October in tubers,roots and aboveground part,the variation trend was October>September>August>July in tubers and roots,October>September>July>August in aboveground part.The highest contents of Bletilla striata polysaccharides in tubers appeared in July.There was a significant negative correlation between polysaccharides and Fe,Zn,Cu in tubers,and Mn,Cu,Fe,Zn in aboveground part.The highest contents of total phenol appeared in October,there was a significant positive correlation between total phenol and Fe,Zn,Cu in tuber and Fe,Mn,Zn,Cr,Cu in aboveground part.In conclusion,there was a certain correlation between the accumulation of effective components and the distribution of metal elements in different parts from Bletilla striata.Since the content of trace elements in aboveground part was relatively stable after July,the accumulation of active components could be promoted by spraying trace elements foliar fertilizer.

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Last Update: 2024-12-03