摘要
安丰A是福建省农科院稻麦研究所选育的野败籼型三系不育系,贵州省已经利用该不育系配制育成了3个杂交稻组合,通过了贵州省农作物品种审定委员会审定。研究安丰A的生育特性、开花习性、种植密度、基本苗等能够促进其繁殖产量提高,进而加速该不育系在贵州省的应用。对母本安丰A设置了相同行距下不同株距和每穴插不同谷苗数的种植密度试验,研究不同密度对安丰A的抽穗期、盛花期、有效穗、穗长、实粒数、繁殖产量、千粒重等性状的影响。结果显示:不同种植密度对安丰A的盛花期、实粒数、有效穗、繁殖产量等有较大的影响,差异达显著或极显著水平,而对抽穗期、千粒重、穗长的影响不大;穴插不同谷苗数对安丰A的穗长、有效穗等有较大的影响,差异达显著或极显著水平,对抽穗期、盛花期、千粒重、每穗实粒数等影响不明显。安丰A在种植密度为17.25万~22.16万穴/hm^2,每穴插3粒谷苗情况下繁殖产量最高。
Anfeng A is a CMS Line in rice bred by the Rice and Wheat Breeding Research Institute,Fujian Academy of Agricultural Sciences,Three hybrid rice combinations derived from Anfeng A were bred in Guizhou province,which were officially approved by Crop Variety Approval Committee of Guizhou Province,A study of growth characteristics,flowering habit,planting density,basic seedlings of Anfeng A was carried on rice breeding and aimed to increase the breeding production,thereby accelerating the application of sterile line in Guizhou province,different plant spacing and number of seedlings per hill of Anfeng A was applied on effects of different planting densities on heading stage,flowering stage,effective spikes,panicle length,setting grains,production,grain weight of rice.The re sults showed that different planting densities have a greater impact on flowering,setting grains,panicle,production of Anfeng A,the difference was significant or very significant,but the impact on the heading stage,grain weight,ear length is not great;different plug seedling number per hill have a greater impact on the panicle length and effective spikes of Anfeng A,the difference was significant or very significant.But it has not obviously impact on the heading,flowering,grain weight of rice.The yield of Anfeng A at planting den sity of 172,500 ~ 221,600 hills / hm^2 and 3 seedlings per hill could achieve a greater yield.
出处
《耕作与栽培》
2016年第1期1-4,共4页
Tillage and Cultivation
基金
贵州省农科院自主创新科研项目"水稻种质创新及高效育种与栽培技术体系研究"[黔农科科院自主创新科研专项字(2014)19号]
贵州省农科院研究生创新基因[黔农科合(创新基金)2010003]
贵州省水稻产业技术体系建设(GZ-CYTX2015-0601)
贵州省科技基金(黔科合J字[2012]2248号)
关键词
安丰A
种植密度
穴插谷苗数
繁殖产量
Anfeng A
planting density
each hole seedings number
breeding production
