江西晚季种植巴西陆稻的产量性状分析

对江西引进巴西陆稻晚季种植的试验数据进行了多角度、多方位（标准误、单元回归、多元回归、通径分析、灰色关联）的计算机统计分析。结果表明：（１）易旱二晚田二晚栽培的关键产量性状是基本苗、有效穗、全生育期天数；（２）秋闲田（地）二晚栽培的关键产量性状是结实率、有效穗、播种至始穗天数；（３）不论何种稻作方式，始穗至成熟天数和千粒重受环境影响小，是典型的受基因控制的遗传性状（即种性）。

The Analyses of the Yield Traits of Brazilian Upland Rice as Late-season Rice Cultivated in Jiangxi Province

The experimental data of Brazilian upland rice in the trial cultivation in Jiangxi Province were statisically analysed by standard error, single variable regression, multiple variable regression, path-coefficient analysis and the relational analysis in grey system. As the results , (1) as late season rice cultivated in the drought-prone fields, its critical yield traits were initial seedling per ha, effective panicles per ha and days to maturity; (2) as late season rice cultivated in the fields fallowed in autumn, its critical yield traits were fertility, effective panicles per ha and days from sowing to initial heading; (3)regardless of cultivation methods, days from initial heading to ripening and 1000-grain weight which was a little affected by environment were typical heredity controlled by genes (namely caste).