自毒作用

Chinese fir ; Autointoxication ; Germination experiment.

杉木；自毒作用；发芽试验

Studies on the autointoxication of Chinese fir show that the aqueous extracts of surface soil, leaf litter, half decaying leaf litter, fresh leaf, branch, bark and root in pure Chinese fir plantation and their polyvinyl pyrrolidone k30 solutions affected the seed germination of Chinese fir, Raphanus sativous and water convolvulus.

对杉木自毒作用研究表明，杉木纯林中的土壤、枯落叶、半分解枯落叶和杉木鲜叶、枝条、树皮、树根的水浸液及其添加乙烯吡咯啉酮k30 的溶液对杉木种子、空心菜种子和萝卜种子的萌发均有影响。

Autotoxicity of phenolics is one of the most important factors contributed toward the occurrence of crop replant disorder.

酚类物质的自毒作用是造成作物重茬障碍的重要因素之一。

Amaranthus retroflexux L. and Trifolium repens L.. The result showed that three different extracts inhibited the germination rate of seeds and inhibited the growth of seeding and young root. The experiment showed that White clover existed obvious allelopathy and autotoxidity effect.

结果表明，地上部分水浸液、挥发物和根系分泌物显著抑制了反枝苋、苘麻和自身种子的发芽率，三部分提取物显著的抑制了苘麻、稗草和自身种子在萌发过程中芽长和根长的生长；试验表明白三叶草存在明显的化感作用且有一定的自毒作用。

Autotoxic effect, as one of continuous cropping obstacle factors, has not been widely reported in chrysanthemum.

自毒作用作为连作障碍影响的因素之一，至今在菊花上尚未引起应有的注意。

Tissue culture methods were used to study the autotoxic effects of root exudation on the growth of second-batch seedlings of Paeonia ostii embryo seedlings.

利用组织培养技术研究了不同生长时期的凤丹种胚组培苗根系分泌物抑制二茬培养苗生长的自毒作用。

Laboratory and greenhouse experiments were conducted to determine if the autotoxic effect is responsible for continuous cropping obstacle of chrysanthemum " Gaoyataizi" and the autotoxic effects of different parts from continuous cropping chrysanthemum on seed germination and seedling growth, cuttings rhizogenesis and the growth of potted-chrysanthemum "Gaoyataizi".

为此本论文旨在以连作障碍典型品种之一的'高压太子'为材料，采用室内生测及温室盆栽对菊花的自毒作用进行如下研究探讨：自毒作用是否是导致菊花连作障碍的因素之一；菊花不同部位水浸液处理对自身种子萌发、幼苗生长、扦插生根及盆栽菊花生长及其重要生理生化过程的自毒效应。

The autotoxicity is one of the mechanisms and obstacle effects occurred from continuous cropping.

自毒作用是连作障碍的发生机制之一，该作用主要是由有机酸、醛类芳香酸、香豆素、醌类、生物碱和类萜等植物次生代谢产物及其分解产物所引起的。

In this paper,researching progress of allelopathic autotoxicity in agro-ecosystem was briefly reviewed based on many studies collected,including allelochemicals,factors of allelopathy ,mechanism of allelopathy .

本文对化感作用的本质和影响因素，化感中自毒作用对作物连作的影响进行了阐释与介绍，在此基础上综述了植物化感自毒作用与土壤病虫害发生、土壤微生物之间的关系，并对化感及自毒作用在农业生态系统中的应用和前景进行了展望。

Rhizosphere ; Allelopathy ; Allelochemicals ; Autotoxicity ; Soil-borne microorganism ; Root exudates

根际；化感作用；化感物质；自毒作用；根际微生物；根系分泌物

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。