Physiological Responses of Apical Leaves on <i>Oncidium</i> Plants under Low Temperature Stress

LUO Yuan-hua; HUANG Min-ling; LIN Rong-yan; Zhong Huai-qin

doi:10.19303/j.issn.1008-0384.2017.10.011

Volume 32 Issue 10

Dec. 2017

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LUO Yuan-hua, HUANG Min-ling, LIN Rong-yan, Zhong Huai-qin. Physiological Responses of Apical Leaves on Oncidium Plants under Low Temperature Stress[J]. Fujian Journal of Agricultural Sciences, 2017, 32(10): 1101-1105. doi: 10.19303/j.issn.1008-0384.2017.10.011

Citation:

LUO Yuan-hua, HUANG Min-ling, LIN Rong-yan, Zhong Huai-qin. Physiological Responses of Apical Leaves on Oncidium Plants under Low Temperature Stress[J]. Fujian Journal of Agricultural Sciences, 2017, 32(10): 1101-1105. doi: 10.19303/j.issn.1008-0384.2017.10.011

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Physiological Responses of Apical Leaves on Oncidium Plants under Low Temperature Stress

doi: 10.19303/j.issn.1008-0384.2017.10.011

Crop Research Institute, Fujian Academy of Agricultural Sciences, Flower Research Center, Fujian Academy of Agricultural Science, Fujian Engineering Research Center for Characteristic Floriculture, Fuzhou, Fujian 350013, China

Received Date: 2017-06-26
Rev Recd Date: 2017-09-06
Publish Date: 2017-10-28

Abstract

Abstract

Changes on relative electric conductivity, soluble sugar, proline (Pro) and malondialdehyde (MDA) in the apical leaves of Oncidium Gower Ramsey, Jin Hui, under low temperatures with varied durations were studied. The results showed that the electric conductivity and Pro content increased with the stress, but MDA decreased with the treatment time. The content of soluble sugars rose initially, and then, declined as the temperature was lowered and the stress continued. The changes on the leaf relative electric conductivity, Pro and MDA induced by the stress showed a consistent pattern suggesting that they could be used as an indicator in evaluating the cold tolerance of an Oncidium plant.
- Oncidium,
- low temperature stress,
- relative electric conductivity,
- soluble sugar,
- proline,
- malondialdehyde

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References(29)

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