|Table of Contents|

Study on Cold Hardiness of Gazania rigens L.‘White Star’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年02期
Page:
73-75
Research Field:
Publishing date:

Info

Title:
Study on Cold Hardiness of Gazania rigens L.‘White Star’
Author(s):
WANG Yong-liang; WANG Wei; DAI Bin; LU Xiao-ping
Gold Mantis School of Architecture and Urban Environment ,Soochow University，Suzhou， Jiangsu 215123
Keywords:
‘White Star’ Gazania rigens L.; cold hardiness; low-temperature stress; physiological indexe; garden plants
PACS:
S 6821+1
DOI:
-
Abstract:
The physio-biochemical index of the leaves of Gazania rigens L. from Japan ‘White Star’ were tested under different low temperature（5,3,1,-1,-3,-5,-7℃）. The results showed that ‘White Star’ with a strong cold hardiness, which was a widely suitable for application of the best in the city.With the temperature decreasing, ‘White Star’ chrysanthemum mesophyll cells above the electrolytic permeability -1℃ treatment changed little, at -3℃ increased slightly,but from-3℃ to -5℃,the permeability of cell had a sharply rising. Using Logistic equation determine LT50was -437℃. The quantity of Malondialdehyde(MDA) descended at first and then increased；The quantity of chlorophyll changed little；The quantity of proline decreased first, then decline，at last increased，when at -1℃，the content reached the maximum.The quantity of proline showed drop-rise-drop trend.

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Last Update: 2014-08-24