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Allelopathy regulates wheat genotypes performance at the enhancement stage by soil water and prohydrojasmon (PDJ)
作者: Zuo, Shengpeng1,2,3; Zhi, Jinhu5; Shao, HongBo(邵宏波)1,2,4,6; Zhao, Guangchao3
出版日期: 2010-08-16
卷号: 9, 期号:33, 页码:5430-5440
关键词: Allelopathic potential ; inducible regulation and interaction ; prohydrojasmon ; soil water stress ; weed suppression ; winter wheat
英文摘要: Growth adaptation and allelopathic potential of four winter wheat (Triticum aestivum L.) accessions has been investigated in pot experiments by prohydrojasmon (PDJ, 10 - 5M) and soil water (75 and 45%) at the enhancement stage. This paper also presented the performance of photosynthesis, water use and weed suppression. The effect of soil water and PDJ on wheat performance displayed significant differences depending on tested wheat cultivars and measured parameters. Water deficit decreased plant biomass significantly and changed phenotypic characteristics like plant height and leaf area of wheat. However, PDJ was found to stimulate wheat root growth and development so as to enhance pressure resistance and induce strong allelopathic potential and weed resistance. Physiological response in var. Lankao 95 - 25 to water shortage and PDJ was significantly relative to net photosynthesis rate and water use efficiency. Water deficit and PDJ would lead to plant phenotype and photosynthesis change and consequently, influence allelopathic expression and weed suppression of wheat based on Canonical Correspondence Analysis (CCA). Water deficit would induce the production and accumulation of more allelochemicals in wheat by passive transport of energy cost. Differing the regulation mechanism of water stress, PDJ showed active transport of energy supply in allelopathic stimulation, which implied that PDJ mainly exhibited its hormone effect to regulate and control wheat growth and development such as improving phenotypic features on competition at the basis of increasing growth cost. Therefore, it was possible for artificial measures to regulate allelopathic potential and weed resistance capacity of winter wheat cultivars, especially, in the arid areas of Loess Plateau of China.
研究领域[WOS]: Biotechnology & Applied Microbiology
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000281756000027
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内容类型: 期刊论文
Appears in Collections:滨海湿地实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
2.Minist Water Resources, Yangling 712100, Peoples R China
3.Anhui Normal Univ, Coll Environm Sci & Engn, Wuhu 241000, Peoples R China
4.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264003, Peoples R China
5.Tarim Univ, Coll Plant Sci, Alaer 843300, Peoples R China
6.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China

Recommended Citation:
Zuo, Shengpeng,Zhi, Jinhu,Shao, Hongbo,et al. Allelopathy regulates wheat genotypes performance at the enhancement stage by soil water and prohydrojasmon (PDJ)[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2010,9(33):5430-5440.
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