CAJ | 학술논문

以“济麦—22”为供试品种，利用中国气象局固城生态环境与农业气象试验站大型根系观测系统，研究冬小麦在重度干旱胁迫（≤40.0％）、轻中度干旱胁迫（40.1％—55.0％）和适宜（55.1％—80.0％）3种水分条件下，地上部分对水分胁迫的响应，以探索水分胁迫对华北平原冬小麦产量的影响，并分析不同水分胁迫对冬小麦产量的影响程度。结果表明：华北平原冬小麦在轻中度干旱胁迫和重度干旱胁迫下，小麦全生育期的天数缩短，株高、叶面积及灌浆速率均呈不同程度的减少。3种水分处理的株高增长量为适宜＞轻中度干旱胁迫＞重度干旱胁迫，灌浆速率为适宜＞轻中度干旱胁迫＞重度干旱胁迫。土壤水分胁迫引起冬小麦物质分配更多地向支持生长的茎秆转移，在生长发育过程中受到水分胁迫，小麦产量将降低，重度干旱胁迫条件下小麦产量为适宜水分条件的69％。
이“제맥—22”위공시품충，이용중국기상국고성생태배경여농업기상시험참대형근계관측계통，연구동소맥재중도간한협박（≤40.0％）、경중도간한협박（40.1％—55.0％）화괄의（55.1％—80.0％）3충수분조건하，지상부분대수분협박적향응，이탐색수분협박대화북평원동소맥산량적영향，병분석불동수분협박대동소맥산량적영향정도。결과표명：화북평원동소맥재경중도간한협박화중도간한협박하，소맥전생육기적천수축단，주고、협면적급관장속솔균정불동정도적감소。3충수분처리적주고증장량위괄의＞경중도간한협박＞중도간한협박，관장속솔위괄의＞경중도간한협박＞중도간한협박。토양수분협박인기동소맥물질분배경다지향지지생장적경간전이，재생장발육과정중수도수분협박，소맥산량장강저，중도간한협박조건하소맥산량위괄의수분조건적69％。
In order to study effects of water stress on winter wheat yield in the North China plain,field experiments under three levels of soil moisture,namely,severe water stress (≤40.0%),moderate drought (40.1%-55.0%) and suitable water (55.1%-80.0%)were carried out at Gucheng ecological-meteorological experimental station of Chinese Academy of Meteorological Sciences.The test cultivar was winter wheat (NO.22 Jimai).The results show that a growth period of winter wheat is shortened,and its plant height,leaf area and filling rate decrease un-der two treatments of severe water stress and moderate water stress.The order of growth rate of plant height under different water treatments is suitable water> moderate drought> severe water stress,so is that of filling rate.More dry-matter is transferred into stem due to soil water stress.Wheat yield will be reduced if wheat is influenced by water stress during growth and development.Compared with yield under suitable water,yield under severe water stress could reach only 69%.