doi:10.3969/j.issn.1004-3268.2005.06.009

Journal of Henan Agricultural Sciences ›› 2005, Vol. 34 ›› Issue (6): 37-39.DOI: 10.3969/j.issn.1004-3268.2005.06.009

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Published:2005-06-15 Online:2005-06-15

PEG渗透胁迫对甘薯光合作用的影响

李扬 ¹;孙存华 ¹;贺鸿雁 ¹;周忠 ¹;马代夫 ²

¹徐州师范大学生命科学学院,江苏,徐州221116;²徐州甘薯研究中心,江苏,徐州221121;

Abstract

摘要： 采用PEG渗透胁迫方法研究了遗306、渝薯8号、Ayamurasaki 3个甘薯品种的光合作用变化.结果表明,渗透胁迫下3个甘薯品种叶片净光合速率(Pn)、蒸腾速率(Tr)和气孔导度(Cond)下降,并随胁迫时间的延长而加剧.3个品种间有显著不同,其中,Ayamurasaki的净光合速率、蒸腾速率和气孔导度随胁迫持续下降最小,说明Ayamurasaki耐旱性强于另外2个品种.

关键词: 渗透胁迫, 甘薯, 净光合速率, 气孔导度

CLC Number:

S531

李扬 ;孙存华 ;贺鸿雁 ;周忠 ;马代夫 . PEG渗透胁迫对甘薯光合作用的影响[J]. 河南农业科学, 2005, 34(6): 37-39.

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PEG渗透胁迫对甘薯光合作用的影响

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