期刊论文

中文

云南农业大学学报(自然科学)

1004-390X

2016

31

3

462-468

10.16211/j.issn.1004-390X(n).2016.03.013

国家烟草专卖局重点科技攻关项目（110200902073）； 红云红河集团资助项目（HYHH2012YL03）；

本校为第一机构

为研究温度胁迫对不同烤烟品种幼苗生长及生理指标的影响,进而筛选有效指标比较不同品种抗温度胁迫逆性,采用5真叶期烟草盆栽幼苗为材料,分别对低温、高温胁迫处理10 d后,云烟87、红花大金元和K326品种的叶绿素含量、丙二醛含量、根系活力、硝酸还原酶含量、株高、最大叶长及最大叶宽等指标进行测定。结果表明:(1)低温、高温胁迫后,各品种幼苗的叶绿素、硝酸还原酶含量均下降。(2)丙二醛含量变化表现为:云烟87低温胁迫后显著升高,高温胁迫后差异不显著;红花大金元品种幼苗低温胁迫后与对照差异不显著,高温胁迫后显著升高;K326品种温度胁迫后MDA含量均较对照组显著升高。(3)低温、高温胁迫后,红花...

Pot-culture tobacco with 5 true leaves was used as material. The experiment was carried out with three flue-cured tobacco varieties seedlings under the temperature stress to study the changes of chlorophyll contents, MDA contents, nitrate reductase contents, root vigor, stem length, maximum leaf length and the maximum leaf width. The results showed that ： （ l ） The contents of chlorophyll and NRase reduced under temperature stress. （2） The MDA content in Yunyan 87 increased significantly under low temperature stress; The MDA content in Hon...