摘要
采用系统调查的方法,调查分析了超级稻和常规稻在分蘖期不同淹水时间对生长发育及产量的影响,提出了水稻受灾后技术抗灾对策和关键技术措施。不同淹水条件下,超级稻和常规稻均随淹水时间延长减产幅度加大,产量降低的原因主要是有效穗数、穗总粒数和千粒重下降,且全生育期延长。超级稻对淹水胁迫的抗性和适应能力优于常规稻,受害轻,恢复生长快,减产幅度低。早稻翻秋种植是灾后重要的补救措施,其关键技术是适时早播,适当增加播种量。
Systematic survey method was used to investigate impacts of different waterlogging duration at tillering stage on growth and development of the super hybrid rice and conventional rice.Disaster countermeasures of rice and key technical measures were also proposed.The yield of the super hybrid rice and conventional rice decreased with the longer duration of flooding,mainly due to reduced effective panicles,panicle and grain weight,and longer the whole growth period.Tolerance of super rice to flooding stress was stronger than that of conventional rice.Autumn planting of rice turned an important remedy in post-disaster,with timely early sowing and increased seeding rate.
出处
《作物杂志》
CAS
CSCD
北大核心
2011年第2期89-93,共5页
Crops
基金
农业部粮食高产创建项目
农业部超级稻示范推广项目
国家重大科技支撑计划项目(2006BAD02A02)
关键词
洪涝灾害
水稻
影响评估
抗灾对策
Flood
Rice
Impact evaluation
Disaster countermeasures
