豫南稻区超级杂交稻扬两优6号的需水规律研究  

Studies on Water Requirement Regulation of Super Hybrid Rice Yangliangyou 6 in the Southern Part of Henan

作　　者：李俊周[1] 韩迎春[1] 赵全志[1] 张晓杰[1] 杜彦修[1] 张静[1] 孙红正[1] 

机构地区：[1]河南农业大学/河南省粮食作物生理生态与遗传改良国家重点实验室培育基地/农业部黄淮海作物生理生态与耕作重点实验室,河南郑州450002

出　　处：《杂交水稻》2012年第6期71-75,共5页Hybrid Rice

基　　金：农业部超级稻新品种选育与示范推广项目[农财发(2012)14-26];河南省重大公益性科研招标项目(091100910100);河南省高校科技创新团队支持计划项目(2010IRTSTHN005);郑州市创新型科技人才建设工程项目(112PCXTD342);郑州市节水农业重点实验室建设项目(121PYFZX185)

摘　　要：采用田间试验小区和测桶相结合的方法,研究了豫南稻区扬两优6号生长发育过程的需水特性和水分利用效率。结果表明,豫南稻区扬两优6号全生育期总需水量为724.01 mm,需水强度为5.50 mm/d;拔节孕穗期需水强度最高,日均蒸散量也最高;抽穗开花期日均蒸腾量最高;水稻叶面蒸腾量、颗间蒸发量和田间渗漏量分别占总需水量的50.68%,16.60%和32.72%。扬两优6号的水分利用效率为1.30 kg/m3,收获指数为0.38。分蘖后期适当晒田和灌浆期实施干湿交替灌溉有利于豫南稻区杂交稻的节水和高产。The water requirement regulation and water use efficiency of the super hybrid rice Yangliangyou 6 were studied in the southern part of Henan Province using the methods of field trial plots and measuring barrels. The results showed that the total water requirement of the whole growth period of Yangliangyou 6 was 724.01 mm, with a water requirement intensity of 5.50 mm/d. The water requirement intensity and average daily evapotranspiration were the highest at the booting stage. At the heading stage, the average daily transpiration was the highest, and the use efficiency of Yangliangyou 6 was 1.30 kg/m3, and its harvest index was 0.38. Appropriate rice field sunning at late tillering stage and intermittent irrigation at the grain filling stage would be conductive to water saving and high yield of hybrid rice in the southern part of Henan.

关 键 词：豫南稻区 杂交水稻 扬两优6号 需水规律 

分 类 号：S511.01[农业科学—作物学] S365