江西农业大学学报2015，Vol.37Issue(5)：774-780,7.DOI:10.13836/j.jjau.2015117
增氧灌溉对杂交水稻分蘖期的影响研究
Effects of Oxygation on Hybrid Rice in Tillering Stage
摘要
Abstract
In order to regulate rearly and quick growth of hybird rice,and promote effective spike rate and ripening rate,through testing tiller dynamic,effective spike rate,root activity,photosynthetic characteristics,etc,the effects of different oxygation treatments on hybrid rice in the tillering stage were studied by using oxyg-ation simulation plot experiment.The results showed that the maximum tiller number and effective tiller number of single point,plant high,root activity,rooting rate,biomass accumulation and photosynthetic characteristics index in the tillering stage of the rice with different oxygation treatments were all superior to those of the rice with conventional irrigation treatments.Compared with oxygation treatments during the day,oxygation during night was not helpful to develop root system,but favorable to plant height and root activity(CK<A1<A2<A3<B1<B2<B3).The TTC reductive and oxidation intensity of B3 treatment was higher by 84.5%than CK.The maxi-mum tiller number of single point increased with increasing frequency of oxygation treatment in the experimentaldesign range (A3>A2>A1>CK and B3>B2>B1>CK).But the effective panicle number of single point and panicle rate increased approximately with the increase of frequency.Compared with CK treatment,oxygation treatment increased photosynthetic rate and decreased transpiration rate.关键词
增氧灌溉/杂交水稻/分蘖Key words
oxygation/hybrid rice/tiller分类
农业科技引用本文复制引用
肖卫华,刘强,姚帮松,李子豪,彭沛夫..增氧灌溉对杂交水稻分蘖期的影响研究[J].江西农业大学学报,2015,37(5):774-780,7.基金项目
国家国际科技合作专项(2013DFG91190)、国家自然科学基金项目(31272248和31401951)和湖南省教育厅项目(13C397) （2013DFG91190）
