| 摘要: |
| 以18个西瓜品种间杂种及其21个亲本为试材,进行了亲子相关、表型相关与通径分析。结果表明,单株产量、果株结果数、单果重、可溶性固形物含量及抗性 F_1值与亲中值呈显著正相关。单果重与单株产量、茎粗与单果重、抗性与单果重、抗性与可溶性固形物含量之间呈极显著正相关。在所分析的性状中,单果重对单株产量的直接影响最大,茎粗对单株产量的影响除本身作用外,主要是通过单果重间接地起作用。 |
| 关键词: 西瓜,种质资源,杂种优势,相关,通径分析 |
| DOI： |
| 分类号: |
| 基金项目: |
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| STUDIES OF WATERMELON GERMPLASM RESOURCES AND BREEDING Ⅲ.CORRELATION BETWEEN PARENTS AND THEIR F1 HYBRIDS,PHENOTYPIC CORRELATION AMONG CHARACTERS AND PATH ANALYSIS |
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Zhang Xingping Wang Ming
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| Abstract: |
| 21 watermelon lines and their 18 F1 hybrids were tested for correlation analysis between parents and their F1 hybrids,phenotypic correlation and path coefficient analysis.The results indicated that significantly positive correlation existed between midparents and F1 hybrids for fruit yield per plant,fruit numbers per plant,fruit weight,soluble solid content,resistance, and extremely significant correlation was found between high parents and F1 hybrids for resistance,There has been a significant correlation between fruit weight and fruit yield per plant,shoot thickness and fruit weight,resistance and fruit weight,and resistance and soluble solid content.The results obtained from path coefficient analysis suggested that fruit weight have an obviously direct effect on fruit yield per plant and indirect effect on shoot thickness of fruit yield per plant mainly via fruit weight apart from the direct effect by itself. |
| Key words: watermelon,germplasm resources,heterosis correlation,path analysis |
