摘要
以柠檬薄荷（Mentha citrata）、胡椒薄荷（Mentha piperita）、美国薄荷（Monarda didyma）、猫薄荷（Nepeta racemosa）为供试材料,采用PEG-6000模拟干旱,研究干旱与低温的交互作用对4种薄荷种子萌发及幼苗生长的影响。结果表明,干旱与低温对这4种薄荷种子的萌发及幼苗生长均有显著影响（P〈0.05）,30%的PEG-6000和8-10℃的低温处理严重抑制了这4种薄荷种子的萌发及生长,柠檬薄荷种子发芽表现出较强的抗旱性。4种薄荷种子在22-24℃处理下发芽率最高,胚芽、胚根和叶的生长表现出差异性,柠檬薄荷在12-14℃时胚根和叶的生长良好。干旱和低温的交互作用对4种薄荷种子的萌发及生长影响显著（P〈0.001）。
In the present study,the effects of drought simulating by PEG-6000 and low temperature on seed germination and seedling growth of four mint species were evaluated. The results showed that drought and low temperature had significant impacts（ P 〈0. 05） on the germination and seedling growth of four mint species seeds. The treatments with 30% PEG-6000 and 8 - 10 ℃ low temperature seriously restrained the seed germination and growth. Mentha citrata seeds showed stronger resistance to drought. The germination percentage of these four mint species seeds were the highest with the 22 - 24 ℃ treatment. There were differences for the growth of stem,root and leaves. The radicale and leaves of M. citrata grew well under 12 ~ 14 ℃. Interaction of drought and low temperature also had significant effect on the germination and growth of four species of mint seeds（ P 〈0. 001）.
出处
《草业科学》
CAS
CSCD
北大核心
2015年第11期1815-1822,共8页
Pratacultural Science
基金
山西省农业科技攻关项目--山西优势草种驯化培育及产业化开发--山西乡土芳香地被植物选优及扩繁体系构建(20140311013-4)
山西省山西省高等学校教学改革项目--建构主义理念在园林植物类课程教学中的应用研究(J2014030)
山西省高等学校大学生创新创业训练项目--山西乡土芳香地被植物选优及扩繁体系构建(2014094)
关键词
薄荷
干旱胁迫
低温胁迫
种子萌发
mint
drought stress
low temperature stress
seed germinate
