【摘要】 运用相关分析和通径分析对洛麦22的产量构成因素进行了研究,结果表明:产量主要因素与产量的相关程度依次为,单位面积穗数(0.149 5)、每穗粒数(0.062 9)、千粒重(-0.429 4),对产量的直接影响依次为:单位面积穗数(1.246 4)、每穗粒数(0.980 7)、千粒重(0.424 0),表明单位面积穗数是洛麦22高产的主要因素,增加单位面积穗数,提高穗粒数,稳定千粒重是提高产量的有效途径。根据分析结果提出了洛麦22的配套栽培技术。更多还原

【Abstract】 The yield components of Luomai 22 were analyzed by using correlation analysis and path analysis.The results show that the degrees of correlation between main yield components and yield were in order of panicle number per unit area(0.149 5),kernel number per panicle(0.062 9) and kernel weight(-0.429 4);the direct impact of main yield components on yield was in order of panicle number per unit area(1.246 4),kernel number per panicle(0.980 7) and kernel weight(0.424 0).It indicated that the panicle number per unit area is the major factor of high-yield of Luomai 22.Therefore,increasing panicle number per unit area,enhancing kernel number per panicle and stabilizing kernel weight are the effective method to increase the yield.In the end,the cultivation techniques for Luomai 22 were proposed according to the above analyzing results.更多还原