CAJ | 학술논문

在暴雨较多的南方地区,采用节水灌溉后,水稻经常遭受干旱和淹水交替胁迫,现有研究多集中于旱或涝的单独胁迫,而对两种胁迫交替作用对水稻农艺和理化指标的研究较少.对旱、涝及其交替胁迫的研究进展进行了综述,认为交替胁迫的叠加效应,在不同的旱、涝胁迫组合条件下,既可能表现为联合效应,也可能表现为拮抗效应,可能削弱或加强水稻对后继旱涝胁迫的抵抗能力;若合理控制胁迫程度,可对水稻生长和产量产生有利影响.提出了有关旱涝交替胁迫叠加效应的产生机制、影响规律以及适宜水分控制指标阈值与灌排模式等方面需进一步深入研究的问题.
재폭우교다적남방지구,채용절수관개후,수도경상조수간한화엄수교체협박,현유연구다집중우한혹로적단독협박,이대량충협박교체작용대수도농예화이화지표적연구교소.대한、로급기교체협박적연구진전진행료종술,인위교체협박적첩가효응,재불동적한、로협박조합조건하,기가능표현위연합효응,야가능표현위길항효응,가능삭약혹가강수도대후계한로협박적저항능력;약합리공제협박정도,가대수도생장화산양산생유리영향.제출료유관한로교체협박첩가효응적산생궤제、영향규률이급괄의수분공제지표역치여관배모식등방면수진일보심입연구적문제.
Alternative stress of drought and waterlogging (ASDW) on rice is common under a water-saving irrigation mode in South China where rainstorms occur frequently. The current studies mainly focus on the effects of single drought or waterlogging rather than the pile-up effects of ASDW on agronomic and physiological traits. This paper summarizes the research progresses of drought and waterlogging stress. The pile-up effects of ASDW can produce antagonistic effects or combined effects under different combinations of drought and waterlogging. Under certain conditions, drought (waterlogging) might strengthen or weaken the resistance of waterlogging (drought) stress in the later stages. Reasonable combination of ASDW can improve grain yield. It is necessary to further study the mechanisms and influence laws of the pile-up effects of ASDW, threshold values of the water control, and irrigation and drainage modes.