A Preliminary Study on Cold Resistance of Six Magnolia Species Seedlings

ACTA HORTICULTURAE SINICA ›› 2007, Vol. 34 ›› Issue (3): 783-786.

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A Preliminary Study on Cold Resistance of Six Magnolia Species Seedlings

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

(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

Abstract

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

LI Gang;JIANG Wei-bing;WENG Mang-ling;JIANG Wu;CAO Jing. A Preliminary Study on Cold Resistance of Six Magnolia Species Seedlings[J]. ACTA HORTICULTURAE SINICA, 2007, 34(3): 783-786.

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A Preliminary Study on Cold Resistance of Six Magnolia Species Seedlings

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