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对海滨锦葵的9个数量性状(产量、株高、地径、分枝数、百粒重、种子数、发芽率、蛋白质和粗脂肪)进行了变异程度、相关性和主成分分析。结果表明:(1)海滨锦葵自然生长群体急需改良,单系产量间存在极显著差异(变异系数为98.44%);(2)产量与地径和分枝数间有十分显著的正相关(r=0.788和0.709),粗脂肪、株高与产量间有显著的相关性(r=0.380和0.279);蛋白质、粗脂肪与地径间有显著的相关性(r=0.308和0.342);(3)9个数量性状可归纳为4个主成分(产量因子、株高因子、百粒重因子和品质因子),累积贡献率为77.176%,依据各主成分贡献率的大小,以主成分为单位选育优质高产的海滨锦葵单系则可先选择大地径、多分枝的组合,结合选择多种子的后代材料,最后选育品质较好的优良单系。
The degree of variability, correlation and principal component analysis of nine quantitative traits (yield, plant height, diameter, number of branches, hundred kernel weight, number of seeds, germination rate, protein and crude fat) were analyzed. The results showed that: (1) The natural growth community of Malvaceae was in urgent need of improvement, and there was a significant difference between single-line yield (coefficient of variation was 98.44%); (2) There was a significant positive correlation between yield and diameter and branch number (r = 0.788 and 0.709). There was a significant correlation between crude fat and plant height and yield (r = 0.380 and 0.279). There was a significant correlation between protein and crude fat and soil diameter (r = 0.308 and 0.342) 3) Nine quantitative traits can be divided into four main components (yield factor, plant height factor, 100 grain weight factor and quality factor), the cumulative contribution rate was 77.176%. According to the contribution rate of each principal component, Breeding units of high quality and high yield of mallow single line can choose large diameter, multi-branched combination, combined with the choice of more offspring of descendants of materials, the final selection of better quality excellent single line.