CAJ | 학술논문

为确定苎麻叶面积测定的最佳方法，本研究进行了三种叶面积测定方法比较研究，对不同部位不同形状的苎麻叶片参数与叶面积间的关系进行回归分析。结果表明，长宽积系数法、鲜重系数法、干重系数法均具有较高的可靠性，构建的三种叶面积测定方法线性模型，相关系数 R均大于0.99，分别为：y1＝0.7287x1＋1.1145；y2＝1.2041x2－16.805；y3＝1.1385x3－11.983。并对各苎麻叶片参数进行了多因素方差分析，结果表明，取样部位对长宽积系数、鲜重系数、干重系数均有显著影响，叶片大小对鲜重系数、干重系数有显著影响，叶片形状对长宽积系数有显著影响。在利用系数回归法测定苎麻叶面积时，应根据不同的叶片参数选择更为贴近的回归线性模型。
위학정저마협면적측정적최가방법，본연구진행료삼충협면적측정방법비교연구，대불동부위불동형상적저마협편삼수여협면적간적관계진행회귀분석。결과표명，장관적계수법、선중계수법、간중계수법균구유교고적가고성，구건적삼충협면적측정방법선성모형，상관계수 R균대우0.99，분별위：y1＝0.7287x1＋1.1145；y2＝1.2041x2－16.805；y3＝1.1385x3－11.983。병대각저마협편삼수진행료다인소방차분석，결과표명，취양부위대장관적계수、선중계수、간중계수균유현저영향，협편대소대선중계수、간중계수유현저영향，협편형상대장관적계수유현저영향。재이용계수회귀법측정저마협면적시，응근거불동적협편삼수선택경위첩근적회귀선성모형。
In order to find out the best method for determining the leaf area of ramie,three kinds of leaf area measurement methods were compared and the relationships between different leaf parameters and leaf area were regressively analyzed.The results showed that these three leaf area measurement methods were all highly reliable.Three correspondent linear models were established,the correlation coefficient were all greater than 0.99,the linear models were:y1 =0.7287x1 +1.1145;y2 =1.2041x2 -16.805;y3 =1.1385x3 -11.983 respectively.The results of multi -factor variance analysis showed that different sampling locations had significant effect on width product coefficient、fresh weight coefficient and dry weight coefficient;the size of leaf had significant effect on fresh weight coefficient and dry weight coeffi-cient;the shape of leaf had significant effect on width product coefficient.When using coefficient regres-sive methods to measure leaf area,a more appropriate model accroding to different parameters of leaf should be chosen.