摘要
倒伏一直以来都是制约东北黑土区玉米高产稳产的重要因素。为了进一步提高玉米抗倒伏能力,以先玉335为供试材料,在玉米大喇叭口期进行化控剂调控试验,探讨化控剂对玉米茎秆和根系抗倒性能的影响。结果表明:化控剂处理显著降低了株高、穗位高、植株下部节间长,显著提高了玉米气生根层数、总根条数、节间密度和折断力,因而化控剂的使用能明显增加玉米抗茎折和根系倒伏的能力。
T he loding has always been an im portant factor restricting the high and stable yield of maize in the black soil area of northeast China.In order to im prove the anti-lodging ability of m aize,takiing Xianyu335as the test m aterial,chem ical regulator was used at bell stage in m aize,the effects of chemical regulator on antilodging characters of stalk and root w ere analyzed.The results show ed that the plant height,ear position and length of lower internodes w ere reduced,while layers and total num bers of aerial root,density and breaking strength of internodes were improved.T he use of chemical regulator could im prove anti-lodging abilities of stalk and root significantly.
作者
郝玉波
于洋
钱春荣
宫秀杰
李梁
姜宇博
来永才
葛选良
赵杨
HAO Yu-bo;YU Yang;QIAN Chun-rong;GONG Xiu-jie;LI Liang;JIANG Yu-bo;LAI Yong-cai(Crop Cultivation Institute, Heilongjiang Academy of Agricultural Sciences,Ministry of Agriculture, Harbin, Heilongjiang 150086;Scientific Observing and Experimental Station of Crop Cultivation in Northeast China, Ministry of Agriculture,Harbin, Heilongjiang 150086)
出处
《黑龙江农业科学》
2017年第10期1-3,8,共4页
Heilongjiang Agricultural Sciences
基金
黑龙江省农业科技创新工程院级科研项目-青年基金资助项目(2014QN017)
国家自然科学基金青年资助项目(31501252)
黑龙江省农业科学院引进博士人员科研启动金资助项目(201507-06)
哈尔滨市科技创新人才研究专项资助项目(2011RFQYN055)
农业部作物生理生态与耕作重点实验室课题资助项目(201305)
作物生物学国家重点实验室开放课题资助项目(2013KF02)
关键词
玉米
化控剂
倒伏
产量
茎秆
气生根
maize
chemical regulator
lodging
yield
stalk
aerial roots
