两优616是目前武平县重点示范推广的超级稻品种之一，本文对其作烟后稻种植的产量构成因素进行了调查及相关分析和通径分析。结果表明，各产量构成因素与产量均呈正相关，其中每穗总粒数、有效穗数与产量呈极显著正相关，每穗总粒数对产量的贡献最大，有效穗数次之，结实率和千粒重对产量的直接作用较小。高产栽培技术上要主攻每穗总粒数和有效穗数，促进足穗大穗，确保一定的结实率和千粒重，从而实现高产稳产。
    

 Liangyou 616 is the key super rice for demonstration and extension of Wuping County. The author conducted investigation, path analysis and correlation analysis on its yield components. The results showed that the main yield components were positively correlated with yield, the total grain number per panicle and effective panicles were extremely significant positive correlation with yield, and had greater contribution to yield than seed setting rate and 1000-grain weight. In order to achieve high and stable yield, the cultivation techniques should focus on total grains per panicle and effective panicles per unit area, and promote big spike, coordinate the relationship between the yield components.