https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2007, Vol. 34 ›› Issue (3): 783-786.

• 研究简报 • 上一篇    下一篇

木兰科6种常绿树幼苗抗寒性的初步研究

李 刚;姜卫兵*; 翁忙玲; 姜 武; 曹 晶   

  1. (南京农业大学园艺学院, 南京210095)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-25 发布日期:2007-06-25

A Preliminary Study on Cold Resistance of Six Magnolia Species Seedlings

LI Gang; JIANG Wei-bing*; WENG Mang-ling; JIANG Wu; CAO Jing   

  1. (College of Horticulture, Nanjing Agricultural University, Nanjing 210095,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-25 Published:2007-06-25

摘要: 对木兰科6个常绿树种在南京地区越冬期间的冻害指数、半致死温度、MDA含量及光合色素
含量的变化进行了研究, 探讨供试树种的抗寒性。结果表明: 所有供试树种经过一段时间的低温锻炼后抗
寒能力均增加, 中亚热带树种的冻害指数和半致死温度均要低于南亚热带树种; 越冬期间所有树种的MDA
含量均显著上升, 叶绿素含量则均下降。综合上述指标对供试树种的抗寒性做出排序: 乐东拟单性木兰
( Parakmeria lotungensis) >阔瓣含笑(Michelia platypetala) >金叶含笑(Michelia foveolata) >红花木莲
(Manglietia insignis) >醉香含笑(Michelia macclurei) >观光木( Tsoongiodendron odorum ) 。

关键词: 木兰, 观赏植物, 抗寒性, 半致死低温, MDA, 叶绿素

Abstract: The performance and the physiological indices including CI, TL50 , MDA and Chl. during the
course of winter were investigated to study the cold resistance of six evergreen magnolia species. All speciesp
chilling assistance was strengthened after a period of low temperature domestication. The magnolia species that
distributed naturally in middle-subtrop ical areas had much lower CI and TL50 than that distributed naturally in
sourthern-subtrop ical areas. All speciespcontents ofMDA ascended while Chl. descended during the course of
winter. The cold resistance of sixmagnolia specieswere arranged in sumarization of the value of above indice:
Parakm eria lotungensis was the strongest, followed by Michelia platypetala, Michelia foveolata, Manglietia in
signis
, Michelia macclurei and Tsoongiodendron odorum.

Key words: Magnolia species, Ornamental plant, Cold resistance, TL50, MDA, Chlorophyll