The Allelopathic Potential of Oxalis Rubra on Seedlings of Veronica persica under Different Environments. | [Pakistan Journal of Botany • 2017]

Author(s):

1. CAN DAI: School of Resources and Environmental Science, Hubei University, Wuhan 430062, China: Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Wuhan 430062, China: Hubei Key Laboratory of Regional Development and Environmental Response, Wuhan 430062, China

2. WEN-JIE LUO: School of Resources and Environmental Science, Hubei University,Wuhan 430062,China

3. KUO LIAO: Wuhan Botanical Garden, Chinese Academy of Sciences,Wuhan 430074,China

4. ZHONG-QIANG LI: School of Resources and Environmental Science, Hubei University, Wuhan 430062, China: Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Wuhan 430062, China: Hubei Key Laboratory of Regional Development and Environmental Response, Wuhan 430062, China

5. JING PANG: School of Resources and Environmental Science, Hubei University, Wuhan 430062, China: Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Wuhan 430062, China: Hubei Key Laboratory of Regional Development and Environmental Response, Wuhan 430062, China

6. ZHENG-XIANG WANG: School of Resources and Environmental Science, Hubei University, Wuhan 430062, China: Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Wuhan 430062, China: Hubei Key Laboratory of Regional Development and Environmental Response, Wuhan 430062, China

Abstract:

Allelopathy is an important ecological mechanism in nature, which is extensively investigated and acknowledged as an innate characteristic. Less is known how the direction and strength of allelopathy may change with different environments in living plants. We studied the allelopathic potential of Oxalis rubra on seedlings of Veronica persica, a cosmopolitan weed, planted under two environments (light incubator and laboratory) with fundamental difference in light intensity. In the light incubator, O. rubra showed a moderate level of inhibition on the leaf growth of V. persica, probably due to a higher concentration or faster release of allelochemicals owing to high resource availability. On the contrary, the presence of O. rubra played a significant role in promoting the survival of V. persica seedlings in the laboratory, likely ascribed to water retention by O. rubra plants or stimulatory allelopathy in the different environment. Our study contributes to empirical investigations on how allelopathy varies with different conditions and points out the importance of environmental heterogeneity on allelopathy.

Page(s): 1491-1496

DOI: DOI not available

Published: Journal: Pakistan Journal of Botany, Volume: 49, Issue: 4, Year: 2017

Keywords:

Oxalis articulata , Allelopathy , Contextdependent , Oxalis rubra , Veronica persica

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