CAJ | 학술논문

为提高茄子耐热性，选用4个不同品种番茄作为砧木对茄子进行嫁接，通过对其苗期热害指数、超氧化物歧化酶（SOD）活性、相对电导率、丙二醛（MDA）含量、叶绿素含量的测定，研究番茄砧木对茄子嫁接苗苗期耐热性的影响。结果表明，嫁接能降低茄子苗期热害指数和相对电导率，其中苗期热害指数最高可降低27．45个百分点；且能降低叶片M DA含量，提高SOD活性；不同砧木嫁接茄子的热害指数、相对电导率、MDA 含量、叶绿素含量以及SOD活性变化规律基本一致，均表现为热害指数、相对电导率、MDA含量降低，SOD活性提高，叶绿素含量变化不规律，其中SOD活性增幅最高可提高110％；但不同的嫁接组合表现有差异，其中以L 402为砧木的嫁接苗表现出较高的耐热性。
위제고가자내열성，선용4개불동품충번가작위침목대가자진행가접，통과대기묘기열해지수、초양화물기화매（SOD）활성、상대전도솔、병이철（MDA）함량、협록소함량적측정，연구번가침목대가자가접묘묘기내열성적영향。결과표명，가접능강저가자묘기열해지수화상대전도솔，기중묘기열해지수최고가강저27．45개백분점；차능강저협편M DA함량，제고SOD활성；불동침목가접가자적열해지수、상대전도솔、MDA 함량、협록소함량이급SOD활성변화규률기본일치，균표현위열해지수、상대전도솔、MDA함량강저，SOD활성제고，협록소함량변화불규률，기중SOD활성증폭최고가제고110％；단불동적가접조합표현유차이，기중이L 402위침목적가접묘표현출교고적내열성。
To enhance the heat tolerance of eggplant ,the effect of 4 different tomato stocks on heat tolerance of grafted eggplant was studied by determining the heat injury index ,SOD activity , relative conductivity ,MDA and chlorophyll content at seedling stage .The results showed that the heat injury index ,relative conductivity and MDA content of eggplants grafted with different stocks were all lower than those of own-rooted eggplants at seedling stage ,while the SOD activi-ties and chlorophyll content were higher .The eggplants grafted with L-402 stock exhibited higher tolerance to heat .