Physiological Responses of Different Cultivars of Cut-Flowers Antirrhinum majus and Its Cold Tolerance Analysis Under Low Temperature(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Physiological Responses of Different Cultivars of Cut-Flowers Antirrhinum majus and Its Cold Tolerance Analysis Under Low Temperature

Author(s):: ZHU Guang-hui¹；TANG Rong¹；DENG Bo²；WANG Cheng-zhong¹；GU Guo-hai¹; 1.Soochow Polytechnic Technology of Agriculture，Soochow，Jiangsu 215008
2.Jiangsu Junma Agricultural Limited Liability Company，Zhangjiagang，Jiangsu 215600

Keywords:: cut-flowers Antirrhinum majus; cold tolerance; low temperature treatment; physiological and biochemistry

Abstract:: Taking 4 cultivars of cut-flowers Antirrhinum majus as material，the effects of low temperature stress on soluble protein content，solube sugar content，proline content，SOD activities of plant leaves were studied.The results showed that the contents of soluble protein and sugar increased at the beginning and declined afterwards in the range of 10～-10℃.The changes of 4 cultivars of cut-flowers Antirrhinum majus were different in amplitude and procedure.The proline content changes were the same as soluble protein.The activity of SOD became higher at the beginning of stressing and lower later on.The enzyme activity decresed，but they still remained at a high level.It was concluded through these physiological and biochemical characteristics that the cold resistant ability of 4 cultivars of cut-flowers Antirrhinum majus was ‘Admiral’ pink (A2)>‘Admiral’ purple (A1)>‘Calima’ pink(C2)>‘Calima’ yellow (C1).

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Last Update: 2014-08-24