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Study on Breaking Resistance Characteristics of Four Kinds of Plants’ Lateral Root Branch During the Vigorous Growth Period(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年17
Page:
58-61
Research Field:
Publishing date:

Info

Title:
Study on Breaking Resistance Characteristics of Four Kinds of Plants’ Lateral Root Branch During the Vigorous Growth Period
Author(s):
LIU Pengfei1; LIU Jing1; ZHANG Ge2; ZHANG Xin3; ZHU Honghui1; LI Youfang1
（1.Institute of Ecological Environment，Inner Mongolia Agricultural University，Hohhot，Inner Mongolia 010010；2.Experimental Center for Desert Forestry，Chinese Academy of Forestry，Dengkou，Inner Mongolia 015200；3.Institute of Water Resources for Pasturing Area of the Ministry of Water Resources，Hohhot，Inner Mongolia 010010）
Keywords:
roots; lateral root branch; breaking resistance characteristics
PACS:
-
DOI:
10.11937/bfyy.201517015
Abstract:
At the vigorous growth period，with the 3-4 year-old Caragana korshinskii，Salix psammophila，Hippophae rhamnoides and Artemisia sphaerocephala as the research objects,used the TianYuan-8000 test instrument to test the breaking resistance and the breaking strength of the four plants.The test roots both were that the upper straight root branched two lower straight roots through the lateral root branch.The results showed that the lateral root branch of four kinds of plants all were the weak part of test roots，and its breaking resistance was not as good as the upper straight root and the two lower straight roots.The breaking resistance and the diameter of lateral root branch were the positive correlation of power function，and the breaking strength and diameter were the negative correlation of power function.The breaking strength of the four kinds of plants compared：Caragana korshinskii (31.47±7.68) MPa >Salix psammophila (17.27±1.90) MPa>Hippophae rhamnoides (3.76 ±1.07) MPa>Artemisia sphaerocephala (2.10±0.28) MPa.

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Last Update: 2015-09-29