芦苇浸提液对虉草种子萌发及幼苗生长生理特性的影响

付为国; 田远飞; 汤涓涓; 尹淇淋

引用本文:	付为国, 田远飞, 汤涓涓, 尹淇淋.芦苇浸提液对虉草种子萌发及幼苗生长生理特性的影响[J].广西植物,2013,(2):154-158.[点击复制]
	FU Wei-Guo, TIAN Yuan-Fei, TANG Juan-Juan, YIN Qi-Lin.Allelopathtic effects of Phragmites communis aqueous extract on seed germination and seedling growth of Phalaris arundinacea[J].Guihaia,2013,(2):154-158.[点击复制]

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芦苇浸提液对虉草种子萌发及幼苗生长生理特性的影响
付为国, 田远飞, 汤涓涓, 尹淇淋
江苏大学现代农业装备与技术教育部重点实验室/江苏省农业装备与智能化高技术研究重点实验室, 江苏镇江 212013

摘要:

通过研究不同浓度芦苇浸提液(对照:0; 处理1:150 g/L; 处理2: 300 g/L)对虉草萌发及幼苗生长影响,揭示了芦苇对虉草化感效应。结果表明:随着芦苇浸提液浓度升高,虉草发芽率、发芽指数、株高、根长以及叶绿素含量显著或极显著下降,各指标相应化感效应指数则显著或极显著上升; 超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性和丙二醛(MDA)含量则随芦苇浸提液浓度升高呈不同的升降趋势。所有这些结果显示,随着浸提液浓度升高,芦苇对虉草的化感胁迫效应越来越明显。

关键词: 化感虉草芦苇种子萌发抗氧化酶

DOI：10.3969/j.issn.1000-3142.2013.02.003

分类号:Q948.1

基金项目:

Allelopathtic effects of Phragmites communis aqueous extract on seed germination and seedling growth of Phalaris arundinacea

FU Wei-Guo, TIAN Yuan-Fei, TANG Juan-Juan, YIN Qi-Lin

1.Key Laboratory of Modern Agricultural Equipment and Technology(Jiangsu University/Ministry of Education/High-tech Key Laboratory of Agricultural Equipment &2.Intelligentization of Jiangsu Province, Zhenjiang 212013, China

Abstract:

Allelopathtic effects of Phragmites communis on Phalaris arundinacea was explored by studying the effects of aqueous extract of Phragmites communis with different concentrations(CK: 0; Treat 1:150 g/L; Treat 2:300 g/L)on seed germination and seedling growth of Phalaris arundinacea. The results showed that with the increase in the concentration of aqueous extract from Phragmites communis,seed germination rate,seed germination index,seedling height,seedling taproot length,and chlorophyll content in leaf showed significant or extremely significant reduction,while allelopathic effect indices based on the above indicators showed significant or extremely significant ascension. Activity of antioxidant enzymes of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT),and content of malondialdehyde(MDA)showed varying degrees of upward or downward trend with the increase in the concentration of aqueous extract. All these results indicated that allelopathic stress effect of Phragmites communis on Phalaris arundinacea was becoming more and more obvious with the increase in the concentration of extracts of Phragmites communis.

Key words: allelopathy Phragmites communis Phalaris arundinacea seed germination antioxidant enzyme