强化栽培条件下超级稻天优998高产群体动态变化特点研究  

Characteristics of high-yielding population dynamic variation of super hybrid rice Tianyou 998 under SRI cultivation condition

作　　者：陆秀明[1] 黄庆[1] 刘怀珍[1] 李惠芬[1] 

机构地区：[1]广东省农科院水稻研究所,广东广州510640

出　　处：《广东农业科学》2008年第9期6-8,共3页Guangdong Agricultural Sciences

基　　金：农业部农业结构调整重大技术研究专项(2003-01-03B)

摘　　要：对超级稻天优998进行了不同施肥水平的强化栽培试验,结果表明:水稻强化栽培能充分发挥天优998分蘖能力强、穗大粒多的特点,在强化栽培条件下每公顷产量10 t的群体特征是:最大叶面积系数在7左右,干物质积累量齐穗期为8 t左右、成熟期为13～15 t,有效穗数230万条,每穗实粒数178～190粒之间,结实率90%以上,千粒重23～24 g。Two densities and two fertilization application level were studied with super hybrid rice TianYou 998, The results showed： The characteristic of big ear and more grain of TianYiou 998 was plenary exertion by way of SRI. The population characters of yield above 10 t/hm^2 by SRI were as follow ： the number of effective tiller was 230×10^4/hm^2, per ear of filled grains was 170-180, mass of 1000-grain was 23-24 g, grain setting rate was above 90%.

关 键 词：超级稻 天优998 强化栽培 群体特征 产量 

分 类 号：S511.047[农业科学—作物学]