Effect of Methyl Jasmonate on Physiological Indexes of Chrysanthemum Cuttage under Natural Drought Stress

LI Hong-li; DENG Hua-ping; SUN Zhen-yuan; ZHAO Liang-jun; HAN Lei; JU Guan-sheng; QIAN Yong-qiang

To investigate the effect of exogenous Methyl Jasmonate (MJ) on drought-resistance of Chrysanthemum Cuttage 'xia huang’, the main drought-resistance physiological indexes were studied under natural drought stress. The results are as follows: Compared to the control, 1 mg·L-1 MJ could increase the water content of leaves and reduce the MDA content, the chlorophyll content increased significantly with 8-12 days treatment. At 12 days treatment, the proline content increased significantly, and reached 2.7 mg·L-1, the SOD, POD enzyme activity were 29.6% and 70.5% higher than that of the control. Over all, Spraying 1 mg·L-1 MJ 4-8 days before transplanting was the best for the drought resistance of Chrysanthemum cottage.

1. Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, Beijing 100193, China

2. Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration

Received Date: 2009-05-20

Abstract: To investigate the effect of exogenous Methyl Jasmonate (MJ) on drought-resistance of Chrysanthemum Cuttage 'xia huang’, the main drought-resistance physiological indexes were studied under natural drought stress. The results are as follows: Compared to the control, 1 mg·L-1 MJ could increase the water content of leaves and reduce the MDA content, the chlorophyll content increased significantly with 8-12 days treatment. At 12 days treatment, the proline content increased significantly, and reached 2.7 mg·L-1, the SOD, POD enzyme activity were 29.6% and 70.5% higher than that of the control. Over all, Spraying 1 mg·L-1 MJ 4-8 days before transplanting was the best for the drought resistance of Chrysanthemum cottage.

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Reference (21)

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Effect of Methyl Jasmonate on Physiological Indexes of Chrysanthemum Cuttage under Natural Drought Stress

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