插植密度对超级稻性状影响初报  

Primary study on character influence of super rice under the condition of different planting densities

作　　者：陈爱平 伍存生 张金艳 陆晓风 

机构地区：[1]灌阳县农业局,广西桂林市541600

出　　处：《广西农学报》2016年第3期1-3,共3页Journal of Guangxi Agriculture

基　　金：2015年超级稻攻关项目

摘　　要：【目的】探索构建水稻超高产群体的栽培技术。【方法】试验设5个处理,3次重复,分析不同插植密度对超级稻"Y两优900"性状的影响。【结果】试验对无效分蘖的控制效果不显著。不同处理对叶片数没有影响。试验各处理都取得了较高产量,处理3产量最高,达到了920.7kg/667m^2。产量从高到低依次顺序为处理3、处理4、处理2、处理5、处理1。【结论】单位面积的总颖花数与产量成正相关关系,构建合理的目标群体是超级稻超高产的攻关方向。"Y两优900"采用1.2万蔸/667m^2的插植密度,更容易形成超高产群体。[Objective]Explore the building of the cultivation techniques of super-high-yield rice group. [Method]The experiment conducts the comparative trial of five processes, repeated three times, studies on character influence of super rice variety YLY900 under the condition of different planting densities.The process of this experiment achive high yield. The highest yield is 920kg/ 667m2,which is achived in process 3.The following oreder of The yield from hitolwis process 3, process 4,process 2,process 4,process 1. [Result]The control effectiveness is not significant for ineffective tillering. Different treatments have no effect on leaf number.[ Conclusion ]The yield, shows significant association with total number of spikelets per unit of area.The super rice research direction is building reasonable target groups; Apply the the planting density 12000 roots/667m2 for super rice YLY900, which is easier to form super-high-yield rice group.

关 键 词：超级稻 密度 超高产群体 技术 

分 类 号：S511.5[农业科学—作物学]