| Analysis on cold resistance ability of almond and causes of chilling injury |
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| DOI：10.7606/j.issn.1000-7601.2006.05.27 |
| Key Words: almond ability of cold resistance chilling injury cause |
| Author Name | Affiliation | | WANG You-ke | College of Forestry Gansu Agricultural University,Lanzhou 730070,China | | XI Wan-peng | College of Agronomy Shihezi University,Shihezi,Xinjiang 832003,China | | YU Song-lin | College of Agronomy Shihezi University,Shihezi,Xinjiang 832003,China | | LI Zhi-bo | Key Laboratory of Oasis Ecological Agriculture of Xinjiang Corps,Shihezi,Xinjiang 832003,China |
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| Abstract: |
| The ability of cold resistance of almond was analyzed by the formulation of LT50, the investigation of over-wintering, the measurement of water content in dormant period and the analysis of anatomical structure in the annual branches of two introduced varieties (Fritz and Nonpareil) .The results showed: the LT50 of Fritz, Nonpareil and CK was-24.88℃, -20.56℃ and-17.15℃, respectively;the index of chilling injury of these varieties was 10%, 45% and 87%, respectively;and the classification of cold resistance was in turn high resisting, moderate resisting and easily shoot-shriveling.So the cold resistance ability of both the tested species was better than that of CK, in which the cold resistance ability of Fritz was the strongest.The main cause of chilling injury in the annual branches was the losing of water at critical period;the reasons of anatomical structure was the thick epidermis, the loose arranging of parenchyma in cortex, and the undeveloped parenchyma in best. |
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