[1]齐冰洁,何竹青,孙艳楠,等.燕麦不同锌效率品种苗期耐低锌胁迫的根系形态差异[J].江苏农业学报,2021,(05):1119-1124.[doi:doi:10.3969/j.issn.1000-4440.2021.05.004]
　QI Bing-jie,HE Zhu-qing,SUN Yan-nan,et al.Morphological differences of root in oat cultivars with different zinc-efficiency under low zinc stress[J].,2021,(05):1119-1124.[doi:doi:10.3969/j.issn.1000-4440.2021.05.004]
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燕麦不同锌效率品种苗期耐低锌胁迫的根系形态差异()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2021年05期
页码:
1119-1124
栏目:
遗传育种·生理生化
出版日期:
2021-10-30

文章信息/Info

Title:
Morphological differences of root in oat cultivars with different zinc-efficiency under low zinc stress
作者:
齐冰洁1; 何竹青1; 孙艳楠1; 张智勇2
（1.内蒙古农业大学农学院，内蒙古呼和浩特010019；2.内蒙古农牧业科学院，内蒙古呼和浩特010031）
Author(s):
QI Bing-jie1; HE Zhu-qing1; SUN Yan-nan1; ZHANG Zhi-yong2
（1.College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010019, China;2.Inner Mongolia Academy of Agriculture and Animal Husbandry, Hohhot 010031, China）
关键词:
燕麦; 低锌胁迫; 锌效率; 根系形态
Keywords:
oat; low zinc stress; zinc efficiency; root morphology
分类号:
S512.6
DOI:
doi:10.3969/j.issn.1000-4440.2021.05.004
文献标志码:
A
摘要:
为了揭示燕麦耐低锌胁迫的根系形态响应，以燕麦锌高效品种晋燕2004和锌低效品种8202为试验材料，采用营养液培养方法，设置正常供锌（1×10-6mol/L）和低锌胁迫（1×10-8mol/L）2个供锌水平，处理时间为0 d、15 d、25 d、35 d，测定不同锌效率燕麦品种苗期生长状况及根系形态指标。结果表明：正常供锌和低锌处理0 d、15 d，两品种干物质量、最大根长、根系总长、总根尖数、表面积、体积均无显著差异；低锌处理25 d和35 d时，锌高效品种晋燕2004地上部和根系干物质量显著高于锌低效品种8202，锌高效品种晋燕2004的最大根长、根系总长、总根尖数、表面积、体积均显著高于锌低效品种8202。说明锌高效品种受低锌胁迫的影响小于锌低效品种，且随胁迫时间长短而表现不同差异。
Abstract:
In order to reveal the response mechanism of oat resistant to low zinc stress, oat cultivars Jinyan 2004 (higher Zn efficiency) and 8202 (lower Zn efficiency) were selected as materials and treated at 0 d, 15 d, 25 d and 35 d under normal zinc supply (1×10-6mol/L) and low zinc stress (1×10-8mol/L), and the seedling growth status and root morphological indices were studied. The results showed that there was no significant difference in the amount of dry matter, maximum root length, root length, total root tip number, surface area and volume of oat between two varieties under normal zinc supply (1×10-6mol/L) and low zinc stress (1×10-8mol/L) at 0 d and 15 d. At 25 d and 35 d of low zinc treatment, the amount of dry matter, maximum root length, root length, total root tip number, surface area and volume of Jinyan 2004 were significantly higher than those of 8202. In short, the effect of low zinc stress on the higher Zn efficiency oat cultivars is less than that on lower Zn efficiency oat cultivars, and which is influenced by stress time.

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备注/Memo

备注/Memo:
收稿日期：2021-02-04基金项目：内蒙古自然科学基金项目（2018MS03051）；国家自然科学基金项目（31460328）；内蒙古科技计划项目（2020GG0037）作者简介：齐冰洁(1971-)，女，内蒙古赤峰人，博士，副教授，主要从事作物遗传育种、种质资源创新与改良研究。(E-mail)qbjzzy@126.com通讯作者：张智勇，(E-mail)zhiyong70@126.com
更新日期/Last Update: 2021-11-09