为了分析金花菜产量构成因素及农艺性状和产量的关系,以来自金花菜主产区的7份金花菜为试材,采用方差分析、相关分析及灰色关联度分析法,对叶长、叶宽、株高、根长、分枝数、第1、2、3、4次收割产量和总产量等10个主要农艺性状进行分析和评价.结果表明,不同来源的金花菜在株高、分枝数、叶长、叶宽和收割产量上普遍存在差异.金花菜总产量与第2次收割产量呈极显著正相关,不同收割茬次间存在互补作用.金花菜的主要农艺性状对产量的影响以第2次收割产量最大,其后依次为株高、第3次收割产量、第1次收割产量、分枝数、叶长、叶宽、第4次收割产量、根长.%In order to analyze the relationship between yield and main agronomic traits of burr medic (Medicago polymorpha L.),variance analysis,correlation analysis and grey relation analysis were carried out to evaluate the samples consist of 7 burr medic materials from the main producing areas.As the index,10 agronomic traits including leaf length,leaf width,plant height,root length,branch number,the first cutting,the second cutting,the third cutting,the fourth cutting yield and total yield were analyzed.The results showed that materials were different in plant height,branch number,leaf length,leaf width and cutting yields.The second cutting yield was significant positive correlation to total yield,and compensation existed in different cutting yields.Among the main agronomic traits of burr medic,the second cutting yield was the most important factor to the yield,followed by plant height,the third cutting yield,the first cutting yield,branch number,leaf width,leaf length,the fourth cutting yield and root length.
展开▼
