CAJ | 학술논문

为明确土壤干旱对孕穗期小麦生理特性和产量的影响，选用小偃22等7个冬小麦品种材料，通过盆栽控水方式，测定孕穗期叶片中超氧化物歧化酶（SOD）、过氧化物酶（POD）及过氧化氢酶（CAT）活性、相对电导率、丙二醛（MDA ）含量等生理和产量指标结果表明，在中度和严重干旱下，小麦叶片中的SOD、POD和CAT活性、相对电导率值、MDA含量、可溶性糖和脯氨酸含量均有不同程度地提高；除晋麦47、小偃22、矮抗58和西农979的可溶性蛋白含量有所增加外，其余品种均下降。干旱胁迫下单株穗粒数、穗粒重和千粒重均显著降低。经主成分分析，供试品种的抗旱性依次为晋麦47＞小偃22＞矮抗58＞西农979＞西农509＞郑麦366＞郑麦9023。
위명학토양간한대잉수기소맥생리특성화산량적영향，선용소언22등7개동소맥품충재료，통과분재공수방식，측정잉수기협편중초양화물기화매（SOD）、과양화물매（POD）급과양화경매（CAT）활성、상대전도솔、병이철（MDA ）함량등생리화산량지표결과표명，재중도화엄중간한하，소맥협편중적SOD、POD화CAT활성、상대전도솔치、MDA함량、가용성당화포안산함량균유불동정도지제고；제진맥47、소언22、왜항58화서농979적가용성단백함량유소증가외，기여품충균하강。간한협박하단주수립수、수립중화천립중균현저강저。경주성분분석，공시품충적항한성의차위진맥47＞소언22＞왜항58＞서농979＞서농509＞정맥366＞정맥9023。
The objective of this work is to elucidate the effect of soil drought on leaf physiological parameters at booting stage and yield of winter wheat .We selected Xiaoyan 22 and other 6 cultivars as experimental materials ,and measured the activities of antioxidative enzymes including the superoxide dismutase (SOD ) ,peroxidase (POD ) ,catalase (CAT ) ,as well as relative electric conductivity ,malondialdehyde (MDA ) content and other physiological traits under different water conditions by pot experiment .The results showed variations in the effect of moderate and severe drought stress on activities of SOD ,POD and CAT ,relative electric conductivity ,and contents of MDA ,soluble sugar ,and pro-line .Soluble protein content increased in Jinmai 47 ,Xiaoyan 22 ,Aikang 58 ,and Xinong 979 ,while it decreased in the other three cultivars .Grains number per spike ,grain weight per spike and the 1000-grain weight significantly decreased under drought stress .Principal component analysis showed an order of drought resistance for these cultivars :Jinmai 47>Xiaoyan 22>Aikang 58>Xinong 979>Xinong 509>Zhengmai 366>Zhengmai 9023 .