Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (7): 20-25.doi: 10.11924/j.issn.1000-6850.2012-3620

Special Issue: 生物技术

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The Study of Physiological Indexes of Feijoa sellowiana Berg in Over-winter Low-temperature Environment

  

  • Received:2012-11-06 Revised:2012-11-25 Online:2013-03-05 Published:2013-03-05

Abstract: In order to study the cold resistance characteristics of Feijoa sellowiana Berg, the author used the mature leaves of Feijoa sellowiana Berg, Coolidge and Mammoth in over-winter low temperature environment as test materials, by researching on several physiological indexes: the electrical conductivity, soluble sugar and free proline (Pro), superoxide dismutase (SOD), peroxidase (POD) and malondialdehyde (MDA). The results showed that: in a certain temperature range, the electrical conductivities, the content of soluble sugar and free proline (Pro) of different species of Feijoa sellowiana Berg were increasing with temperatures decreasing. In the over-winter process, the free proline (Pro) of different kinds of Feijoa sellowiana Berg had a regular change. The activity of protective enzymes (SOD, POD) inside the cells were enhancing with temperatures reduced. Variance analysis results showed that: variance differences of relative conductivity, malondialdehyde (MDA), free proline (Pro), peroxidase (POD) between different species reached significant level. And the electrical conductivity, soluble sugar, malondialdehyde (MDA), free proline (Pro), peroxidase (POD) and superoxide dismutase (SOD) indexes reached extremely significant level between different temperatures. There was no significant difference between the superoxide dismutase (SOD) in different species.