不同施氮方法对两种株型糯玉米穗部性状及产量的影响  

Effects of different nitrogen application methods on ear characters and yield of two plant types of waxy maize

作　　者：韩晴[1] 张丹[2] 卢媛[1] 许梅玲 沈新芬[4] 沈渊[4] 王义发[1] 沈雪芳[1] 

机构地区：[1]上海市农业科学院作物育种栽培研究所,上海201403 [2]上海市农业科学院食用菌研究所,上海201403 [3]上海市嘉定区农业技术推广服务中心,上海201800 [4]上海市金山区农业技术推广中心,上海201599

出　　处：《上海农业学报》2017年第4期40-42,共3页Acta Agriculturae Shanghai

基　　金：上海市种业发展项目[沪农科种字(2015)第4号];上海市种业发展项目[沪农科种字(2016)第1-3号];上海市种业发展项目[沪农科种字(2013)第13号];上海市科学技术委员会科研计划项目(153919N1300);上海市农业科学院卓越团队[农科创2017(B-08)];上海市市级农口系统青年人才成长计划[沪农青字(2015)第1-4号]

摘　　要：以‘沪玉糯5号’(紧凑型)和‘沪玉糯2号’(平展型)为材料,研究了3种施肥方法对2种株型玉米产量和相关经济性状的影响。结果表明:2个品种在施肥方法A2下平均产量最高,为11 531 kg/hm^2;‘沪玉糯5号’的产量达12 997 kg/hm^2,极显著高于‘沪玉糯2号’(9 168 kg/hm2)。3种施肥方法在秃尖方面存在显著差异,在穗长、穗粗、穗行数、行粒数、百粒重、出籽率方面差异不显著;2个品种在穗长、穗粗、穗行数、行粒数、出籽率、秃尖方面存在极显著差异,百粒重无显著差异。因此,适宜的尿素施用方法是苗期315 kg/hm^2,拔节期135 kg/hm^2;紧凑株型‘沪玉糯5号’产量显著高于平展株型‘沪玉糯2号’,性状表现好。The effects of 3 fertilization methods on the yield and related economic characters of 2 plant types of maize were studied in this paper, taking ＇ Huyunuo 5＇ （compact type）and ＇ Huyunuo 2＇ （flat type）as materials. The results showed that the average yield of fertilization method A2（ 11 531 kg/hm^2） was the highest, the yield of ＇ Huyunuo 5＇ was 12 997 kg/hm^2, which was significantly higher than that of ＇ Huyunuo 2＇ （9 168 kg/hm^2）. There were significant differences in ear barren tip ,and no significant difference in ear length, ear diameter,row number,grain number per row, 100-grain weight and seed rate between the 3 methods. There were very significant differences in ear length, ear diameter, row number, grain number per row, seed rate and ear barren tip, no significant difference in 100-grain weight between the 2 varieties. Therefore, the appropriate method of urea application was 315 kg/hm^2 in seeding stage and 135 kg/hm^2 in jointing stage respectively. The yield of compact type maize ＇ Huyunuo 5 ＇ was significantly higher than that of flat type maize ＇ Huyunuo 2＇ , which had good characters.

关 键 词：糯玉米 施氮方法 株型 穗部性状 产量 

分 类 号：S513.06[农业科学—作物学]