有序与无序田间配置对粳型超级稻沈农265产量及群体特征的影响  

Effect of Order and Disorder Field Arrangement Patterns on Yield and Population Characteristics of Japonica Super Rice Shennong 265

作　　者：张振宇[1] 张文忠[1] 党姝[1] 韩亚东[1] 赵明辉[1] 徐正进[1] 陈温福[1] 

机构地区：[1]沈阳农业大学水稻研究所,农业部作物生理生态遗传育种重点开放实验室,辽宁省北方粳稻遗传育种重点实验室,辽宁沈阳110161

出　　处：《江苏农业学报》2010年第3期462-467,共6页Jiangsu Journal of Agricultural Sciences

基　　金：公益性行业(农业)科研专项经费项目(200903003);国家科技支撑计划项目(2006BAD61A01-6)

摘　　要：以粳型超级稻沈农265为试材,采用有序与无序状态下6种不同田间行穴距配置及南北与东西两种行向,探讨北方粳型超级稻有序与无序田间优适配置及其群体特征。结果表明,有序田间配置下宽窄行稀植(40.0 cm+26.6 cm)×13.3 cm东西行向是粳型超级稻沈农265相对优适的田间配置方式。上述田间配置高产原因为有效分蘖率相对较高,叶面积指数较好,相对光照强度较优,物质生产与积累量较多,提高了单位面积穗数、单位面积的总粒数(颖花数、实粒数)、每穗粒数(总粒数、实粒数)和粒重(千粒重),并且具有最大的收获指数,其产量构成因素在6种试验配置中优势最为明显。To explore the optimal field arrangement patterns and population characteristics of northern japonica super rice.Shennong 265,a famous northern japonica super rice variety,was used as material,sowed in six different row-hill space combinations and two different row directions（south-north and east-west） under order and disorder field arrangement patterns.The wide-narrow row sparse planting（40.0 cm ＋ 26.6 cm） × 13.3 cm with east-west row direction was the best planting pattern for japonica super rice Shennong 265.The reasons of high yielding under this field arrangement pattern were high effective tiller percentage,optimum leaf area index,more illumination intensity and more mass production and accumulation.The panicle number per unit area,total number of grains per unit area（including total number of spikelets and total number of filled grains）,number of grains per panicle（including total number of grains and number of filled grains） and grain weight（1 000-grain weight） were improved Shennong 265,under this field planting pattern,had the biggest harvest index and optimum yield components among the six field arrangement patterns,whose yield advantage was obvious.

关 键 词：超级稻 粳稻 有序配置 无序配置 群体特征 

分 类 号：S511.220.44[农业科学—作物学]