Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (4): 23-25.doi: 10.11924/j.issn.1000-6850.2012-3167

Special Issue: 园艺

• 23 • Previous Articles     Next Articles

The Research of Semi-lethal Temperature and Cold Tolerance of Camellia oleifera Cultivars Clones in Guangxi

zeng wenjun   

  • Received:2012-09-18 Revised:2012-11-02 Online:2013-02-05 Published:2013-02-05

Abstract: In order to identify the cold tolerance of Camellia oleifera clones cultivars in Guangxi, the changes of cell membrane permeability at different low temperature of‘Cenruan 2’,‘Cenruan 3’,‘Cenruan 22’and‘Cenruan 24’were measured using the conductance method. The semi-lethal temperature (LT50) of 4 clones was obtained with the logistic equation. The results showed that: as the temperature decreases, cell injury rate was S-shaped curve, and temperature was highly significant negative correlation. The semi-lethal temperature of four clones was respectively: -9.0℃, -12.6℃, -9.9℃, -10.8℃. The order of cold resistance from strong to weak was:‘Cenruan 3’>‘Cenruan 24’>‘Cenruan 22’>‘Cenruan 2’.