CAJ | 학술논문

研究了棉花腐殖质中的3种主要化感物质亚油酸、软脂酸和邻苯二甲酸二丁酯对棉花幼苗生长的影响。结果表明，这3种物质对棉花幼苗生长在低浓度时表现为促进作用，促进了棉花地上器官和根系生长，降低了超氧化物歧化酶、过氧化氢酶活性，降低了丙二醛含量，提高了根系活力，而在高浓度时表现为抑制作用。其中，软脂酸表现出的抑制作用最强，亚油酸次之，邻苯二甲酸二丁酯最弱。3种化感物质按腐殖质中比例混合（亚油酸∶软脂酸∶邻苯二甲酸二丁酯＝5∶6∶7），表现出更强的抑制作用，表明3种物质彼此之间存在明显的协同作用。
연구료면화부식질중적3충주요화감물질아유산、연지산화린분이갑산이정지대면화유묘생장적영향。결과표명，저3충물질대면화유묘생장재저농도시표현위촉진작용，촉진료면화지상기관화근계생장，강저료초양화물기화매、과양화경매활성，강저료병이철함량，제고료근계활력，이재고농도시표현위억제작용。기중，연지산표현출적억제작용최강，아유산차지，린분이갑산이정지최약。3충화감물질안부식질중비례혼합（아유산∶연지산∶린분이갑산이정지＝5∶6∶7），표현출경강적억제작용，표명3충물질피차지간존재명현적협동작용。
In this experiment ,we studied the effect of cotton seeding growth and development by the three main allelochemicals in cotton humus linoleic acid , palmitic acid and dibutyl phthalate .The results showed that , these three substances promote the cotton seeding growth at low concentrations .Promote the growth of cotton shoots and roots,reducing superoxide dismutase and hydrogen peroxide activity ,reduced the MDA content ,and improve the root of the root activity,and inhibit the growth of cotton in high concentrations .Among them,palmitic acid showed the strongest inhibition ,linoleic acid ,followed by ,dibutyl phthalate weakest .Three allelochemicals mixed as the propor-tion in humus (linoleic acid∶palmitic acid∶dibutyl phthalate =5∶6∶7),showed greater inhibition,experiments re-sult indicated there was obvious synergetic effect among these substances .