摘要
为筛选并建立超级杂交稻集大穗与多穗于一体的高产栽培技术体系,以水稻强化栽培技术体系(SRI)为基本模式,研究了多种栽培方式对超级杂交稻两优0293生长发育特性和产量的影响,并运用灰色关联度分析方法对主要经济性状与实际产量、不同栽培方式与理想方式分别进行灰色关联度分析.结果表明:与产量关联最密切的性状为有效穗数,其次为千粒重、结实率;产量最高的栽培方式为密度18×104穴/hm2,规格33.3 cm×(10+23.3)cm的宽窄行密株错位形式,该方式的综合表现与目标栽培方式关联最紧密.
Using system of rice intensification （SRI） as basic mode, effect of various cultivation methods on super hybrid rice Liangyou0293 growth characteristic and yield were investigated. A gray correlation analysis between main economic characters and actual yield, dissimilarity cultivation way and ideal way were conducted, in order to select and establish a cultivation technique target method of super hybrid rice to integrate big panicle with many panicles. Result： valid panicle number is a characteristic most close to yield, secondly is the weight of thousand grains, burliness rate. A density of 1810^4caves/hm^2 and a specification of an irregular 33.3 cmx（10＋23.3） cm in wide-narrow rows with airtight stub. Should be conducted then its comprehensive performance would approximate that of the ideal method.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第4期379-385,共7页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家粮食丰产科技工程项目(2006BAB02A01)
关键词
超级杂交稻
栽培方式
生理特性
产量
灰色关联度
两优0293
super hybrid rice
cultivated mode
physiological characteristic
yield
grey correlation
Liangyou0293
