本文關(guān)鍵詞：茄子連作障礙的主要化感物香草醛和肉桂酸的作用機理及嫁接調(diào)節(jié)，由筆耕文化傳播整理發(fā)布。

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項目代碼C1502

項目名稱茄子連作障礙的主要化感物香草醛和肉桂酸的作用機理及嫁接調(diào)節(jié)

負責(zé)人周寶利  教授

所在單位沈陽農(nóng)業(yè)大學(xué) 

批準金額30 萬元

所屬類別面上項目

關(guān)鍵詞 嫁接茄子    根系分泌物    香草醛和肉桂酸    化感作用    分子機理   

中文摘要 針對茄子連作障礙中的化感作用，采用化感原理與嫁接技術(shù)相結(jié)合的方法，以茄子根系分泌物中兩種主要化感物質(zhì)（香草醛和肉桂酸）為切入點，探討這兩種酚酸在土壤中積累變化規(guī)律，明確化感物質(zhì)積累與作物生長及連作年限的關(guān)系；探討外源香草醛和肉桂酸的化感作用（種內(nèi)自毒、種間他感和微生物化感），揭示化感物質(zhì)對不同受體對象（茄子自身、其他作物以及黃萎病菌）的影響特點和規(guī)律，闡明化感作用與連作障礙形成的關(guān)系；研究嫁接對香草醛和肉桂酸分泌量的影響以及對化感作用的調(diào)控效果，綜合評價嫁接對茄子化感作用調(diào)節(jié)的有效性、多效性和關(guān)聯(lián)性；研究嫁接對化感自毒物質(zhì)脅迫下茄子葉片抗氧化系統(tǒng)調(diào)節(jié)機制、根系膜系統(tǒng)酶系保護效應(yīng)機制以及根際土壤生物學(xué)活性的影響，闡明嫁接對化感自毒物質(zhì)脅迫的調(diào)節(jié)機理和分子機制，為利用嫁接技術(shù)有效防止連作障礙提供理論依據(jù)。

英文摘要Abstract:Based on the two main allelochemicals in eggplant root exudates,Vanillin and Cinnamic acid,the rules of the two phenolic acids' accumulation and variety in the soil were discussed and the relation between the allelochemicals accumulation and the crop growth and continuous cropping years were ascertained by aiming at the allelopathy of the eggplant continuous cropping obstacle and introducing the way of combining allelopathy principles with grafting technique. The character and rule of the allelochemicals having effects on different objects including eggplants and other crops and verticillium wilt were investigated ,and the relation between allelopathy and continuous cropping obstacle were disclosed by discussing allelopathy of exogenous Vanillin and Cinnamic acid including autointoxication and allelopathy among species and microorganism allelopathy. Validity, multiple effect, relation of grafted eggplants regulating allelopathy were overall valuated by studying the graft regulating effects on the exudate amount of Vanillin and Cinnamic acid and allelopathy.The regulation and molecular mechanism of graft were clarified by studying the effect on the regulation mechanism of antioxidant system of eggplant leaves and the protective effects mechanism of enzyme system in eggplant root's membrane and biological activity of rhizosphere under the autotoxic substances stress.This study can provide theoretic basis for effectively preventing continuous cropping obstacle by utilizing graft technique .

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  本文關(guān)鍵詞：茄子連作障礙的主要化感物香草醛和肉桂酸的作用機理及嫁接調(diào)節(jié)，，由筆耕文化傳播整理發(fā)布。