In order to ascertain the allelopathy activity of Trifolium repens on weeds, the allelopathic effect of aqueous extract from the aerial part and root of T. repens under different concentrations on the germination rate, physiological and biochemical mechanism of germinating seeds of Abutilon theophrasti Medic.

為進(jìn)一步明確白三葉草對(duì)雜草的化感作用，研究了不同濃度的白三葉草地上部分水浸液和根部水浸液對(duì)苘麻和稗草種子發(fā)芽率和種子萌發(fā)過程中生理生化機(jī)理的影響婷婷色吧A√。

In order to ascertain the allelopathy of T.repens on weeds, the allelopathic effect of aqueous extract from the aerial part and root of T. repens. with different concentrations on the germination rate, physiological and biochemical mechanism of germinating seeds of Abutilon theophrasti Medic.

為進(jìn)一步明確白三葉草對(duì)雜草的化感作用A色视频，研究了不同濃度的白三葉草地上部分水浸液、根系分泌物国产高中不带套视频在线观看、揮發(fā)物對(duì)苘麻和稗草種子發(fā)芽率和雜草幼苗生長(zhǎng)過程中生理生化機(jī)理的影響亚洲肏屄网站。

The A . cordifolia become the single dominant species because it had characteristics of strong agamogenesis ability , rapid growth and the allelopathy .

落葵薯因具有無性繁殖能力強(qiáng)，生長(zhǎng)迅速和化感作用的特點(diǎn)而成為單一優(yōu)勢(shì)種www.99aiav100。

Volatile oil of Ageratum conyzoides ; Allelopathy ; Nutrient level ; Chemical components.

勝紅薊揮發(fā)油立即播放免费毛片一级；化感作用；營(yíng)養(yǎng)水平伊人久久av一区二区三区；化學(xué)成分

Allelopathy of Ageratum conyzoides Ⅴ.biological activities of the volatile oil from ageratum on fungi,insects and plants and its chemical constituents

勝紅薊化感作用研究 V未满黄色网站。揮發(fā)油對(duì)真菌、昆蟲和植物的生物活性及其化學(xué)成份標(biāo)簽名稱：生態(tài)學(xué)報(bào) 2001年国产一级AA片有黄有粗毛片，第21卷一级特黄AAA免费视频，第04 期起止頁(yè)碼：584-587

This article reviewed on the definiens of allelopathy, allelochemical categories and interactants of them. Acting modes of the allelochemicals were discussed. The use of allelopathy and allelochemicals of plants to agriculture production was introduced. The existing problems and direction in the study on plants allelopathy were advanced in the end.

筆者綜述了植物化感作用的定義，化感物質(zhì)的種類及其相互之間的關(guān)系性欧美老妇人牲交，化感物質(zhì)的作用機(jī)制欧美性影片在线观看，并介紹了化感作用在農(nóng)業(yè)生產(chǎn)中的應(yīng)用及其前景yw在线，展望了化感作用研究的范圍和方向。

The results showed that allelochemicals of all 10 kinds of donor species have allelopathy on seed germination of Eupatorium adenophorum, and allelopathy increased with the enhancing of concentration.

結(jié)果表明：10種供體植物的化感物質(zhì)對(duì)紫莖澤蘭種子萌發(fā)均存在化感作用91福利精选在线导航，并且隨著濃度的升高亚洲精品你懂的在线播放，化感作用逐步增強(qiáng)，紫莖澤蘭種子發(fā)芽速度指數(shù)比發(fā)芽率更為敏感女生被操的喷水视频。

Allelopathy of Chlorella pyrenoidosa caused by different tissue and different concentration extracts of two terraneous plants (Syngonium podophyllum and Ficus microcarpa) was investigated. The results showed that both of the extracts of two terraneous plants had allelopathy on Chiorella pyrenoidosa, but they showed different intensity. The allelopathic inhibition effects of Ficus microcarpa is stronger and steadier than Syngonium podophyllum in generally.

通過合果芋和榕樹兩種陸生植物不同濃度久久九九re精品国产三级、不同部位浸提液對(duì)蛋白核小球藻化感作用的研究，結(jié)果表明：兩種植物對(duì)蛋白核小球藻都具有化感作用但強(qiáng)度不同免费A片吃奶玩乳视频，榕樹的抑制效果比合果芋強(qiáng)且穩(wěn)定。

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 .

本文對(duì)化感作用的本質(zhì)和影響因素欧美,曰韩,国产馆在线视频，化感中自毒作用對(duì)作物連作的影響進(jìn)行了闡釋與介紹黄片一级aaaaa免费视频，在此基礎(chǔ)上綜述了植物化感自毒作用與土壤病蟲害發(fā)生、土壤微生物之間的關(guān)系少妇精品无码专区视频仙踪林，并對(duì)化感及自毒作用在農(nóng)業(yè)生態(tài)系統(tǒng)中的應(yīng)用和前景進(jìn)行了展望久久这里都是精品1。

Allelopathy is one of the top heat point research worldwide, and scientists from The United State, Canada and UK pay great enthusiasm to identify a large number of allelopathy compounds, some of which have been uncovered their mechanism, meanwhile, some results have make a considerable contribution to the discovery and production of bio-pesticide.

化感作用是目前世界上研究的熱點(diǎn)之一，近20年來在美國(guó)人人干人人操比、加拿大和英國(guó)等地得到迅速開展片黄色网站天天，分離、鑒定出了一大批化感化合物激情视频第一页；其中不少研究已深入到機(jī)理方面老熟影院，一些研究成果在生物農(nóng)藥的創(chuàng)制方面還得到了有效的應(yīng)用。