CAJ | 학술논문

选用6个冬小麦品种为材料，采用人工气候室盆栽和药隔期低温胁迫的方法，研究药隔期低温对冬小麦生长发育和穗部结实率的影响。结果显示，药隔期－2℃低温胁迫24 h和48 h对小麦的生长状态、结实率及千粒重均有不同程度的影响，低温胁迫24 h大部分品种结实率降低不明显，胁迫48 h降低幅度明显增大，表明－2℃低温胁迫时间越长，小麦受害越重。根据结实率的变化判定，6个品种的耐倒春寒能力表现为济麦22、临麦4号﹥烟农19﹥鲁原502、济南17和周麦18。
선용6개동소맥품충위재료，채용인공기후실분재화약격기저온협박적방법，연구약격기저온대동소맥생장발육화수부결실솔적영향。결과현시，약격기－2℃저온협박24 h화48 h대소맥적생장상태、결실솔급천립중균유불동정도적영향，저온협박24 h대부분품충결실솔강저불명현，협박48 h강저폭도명현증대，표명－2℃저온협박시간월장，소맥수해월중。근거결실솔적변화판정，6개품충적내도춘한능력표현위제맥22、림맥4호﹥연농19﹥로원502、제남17화주맥18。
The pot culture experiment was conducted in the growth chamber to study the influences of low temperature at connectivum stage on growth , development and seed setting percentage of six winter wheat cultivars.The results showed that treating at -2℃for 24 and 48 hours at connectivum stage had different in-fluences on the growth morphology , seed setting percentage and thousand kernel weight .The seed setting per-centage of most varieties didn ’t decrease obviously after 24 hours of low-temperature stress , but decreased obviously after 48-hour stress , which indicated that the longer the low -temperature stress at -2℃, the more serious the damage to wheat was .According to the variation of seed setting percentage , the spring frost resistances of Jimai 22 and Linmai 4 were better than Yannong 19 , and that of Luyuan 502 , Jinan 17 and Zhoumai 18 were the worst .