摘要
为分析不同品种早稻对水淹胁迫的响应,于2012年3—7月分别对不同品种水稻的分蘖期、抽穗扬花期耐淹能力及不同淹涝强度对一些农艺性状的影进行了研究。结果表明:分蘖期不同品种籼稻在不同的淹涝强度处理间的株高变化结果不一。不同淹水处理小区出现主茎穗和分蘖穗发育进程不一致,生育期延长天数与淹水天数之间呈现极显著的正相关关系。因为‘湘早籼24’植株相对比较矮,受钻心虫危害比较严重。钻心虫发生面积和淹水强度之间呈现极显著的正相关关系。淹水处理造成水稻产量降低,试验结果表明同一品种,产量降幅随淹水时间延长而加大。
In order to analyze the responses of different varieties of early rice under waterlogging stress, in this paper, the different varieties of rice tillering, heading and flowering flooded ability submergence strength resistance to impact on some agronomic traits, evaluations of submergence tolerance at tillering stage, heading stage and effects of different submergence stress on some agronomic characters in rice were studied. Results showed that, in tillering stage, indica rice varieties in different flooded waterlogging strength between the processing plant height change different results. Different waterflooding treatment plot appears caulis ear and tillers spike development process not consistent, growth period extend days and flooded between days showed extremely significant positive correlation. Because the plant of ＇Xiangzaoxian24＇ was relatively low, the tryporyza incertulas hazard was serious. Tryporyza ineertulas occurrence area and flooded strength showed extremely significant positive correlation. Flood water treatment caused the rice yield reduced; the experimental result indicated that, the same variety production by submerged water with the time extension and increase.
出处
《中国农学通报》
CSCD
2013年第27期24-29,共6页
Chinese Agricultural Science Bulletin
基金
2011年国家"十二五"科研支撑计划项目"洪涝灾害监测预警与防控与应急关键技术研究与应用"(2012BAD20B02)
关键词
水稻
淹涝胁迫
钻心虫
产量
rice
waterlogging stress
tryporyza incertulas
yield
