CAJ | 학술논문

通过苗期湿害处理，研究了24份不同基因型芝麻叶片相对电导率、含水量和保水力等性状变化。结果显示，湿害胁迫下芝麻叶片相对电导率显著增加，叶片含水量有所下降，叶片保水力降低明显，不同基因型间存在较大差异。根据相对电导率计算而来的伤害度与叶片含水量、保水力呈极显著负相关，叶片含水量与保水力呈极显著正相关。聚类结果显示，参试材料明显聚为耐湿与不耐湿2大类，耐湿类群包含刚果野芝麻、竹山白、165、中芝13和赣芝13号。
통과묘기습해처리，연구료24빈불동기인형지마협편상대전도솔、함수량화보수력등성상변화。결과현시，습해협박하지마협편상대전도솔현저증가，협편함수량유소하강，협편보수력강저명현，불동기인형간존재교대차이。근거상대전도솔계산이래적상해도여협편함수량、보수력정겁현저부상관，협편함수량여보수력정겁현저정상관。취류결과현시，삼시재료명현취위내습여불내습2대류，내습류군포함강과야지마、죽산백、165、중지13화공지13호。
In this study, 24 different genotypic sesame materials were artificially waterlogged at seedling stage, and the relative electric conductivity ( REC) , water content ( WC) and water-holding capacity ( WHC) of their leaves were analyzed.The results indicated that:under waterlogging stress, the REC of sesame leaf increased significantly; the leaf WC decreased somewhat; the WHC of leaf decreased obviously, and great difference in WHC existed among different genotypes.The damaged degree calculated from the REC of leaf was very significantly negatively correlated with the WC and WHC of leaf, and the WC of leaf was very signifi-cantly positively correlated with the WHC of leaf.The results of clustering analysis showed that all the tested materials were obvious-ly classified into waterlogging-tolerant group and waterlogging-intolerant group, and the waterlogging-tolerant group included Sesamum schinzianum, Zhushanbai, 165, Zhongzhi No.13 and Ganzhi No.13.