| 万继锋.澳洲坚果种质资源果实表型多样性分析[J].中国南方果树,2022,51(6): |
| 澳洲坚果种质资源果实表型多样性分析 |
| Phenotypic Diversity on Fruit of Macadamia spp. Germplasm Resources |
| 投稿时间：2021-08-18 修订日期：2021-10-05 |
| DOI： |
| 中文关键词: 澳洲坚果 种质资源 果实 表型性状 多样性 |
| 英文关键词:macadamia germplasm resources fruit phenotypic characters diversity |
| 基金项目:广东省林业科技创新项目”澳洲坚果优良品系选育及种苗产业化技术研究”（2019KJCX018），农业农村部品种改良提升专项“澳洲坚果种质资源精准评价与新品种培育”，农业农村部南亚热带作物种质资源保护项目”澳洲坚果物种资源保护与利用”，中央级公益性科研院所基本科研业务费专项(1630062017028)。 |
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| 中文摘要: |
| 以 54 份澳洲坚果种质资源为试材，分析澳洲坚果种质果实表型多样性。结果表明：澳洲坚果种质资源果实表型存在丰富的多样性，13 个描述性状平均变异类型 3.2 个，种脐侧面凹痕大小的变异类型最为丰富，为 5 个；19 个数量性状中，果壳厚度的变异系数最大为 21.89 %，含油率的变异系数最小为 1.56 %；主成分分析结果将 32 个表型性状简化为 10 个主成分，解释的总变异为 81.757 %；皮果单粒鲜重、皮果纵径、皮果横径与壳果单粒干重、壳果纵径、壳果横径、果仁单粒干重、果仁纵径、果仁横径呈极显著或显著正相关；出仁率与果仁单粒干重呈极显著正相关，与果壳厚度呈极显著负相关；一级果仁率与壳果单粒干重、果仁单粒干重、果仁横径呈显著或极显著正相关，与果壳厚度呈显著负相关；含油率与壳果单粒干重、果仁单粒干重、一级果仁率呈显著或极显著正相关。 |
| 英文摘要: |
| The phenotypic genetic diversity of fruit from 54 macadamia germplasm resources was analyzed. The results showed that the average variation type among 13 described characters was up to 3.2, and the hilum lateral notch had the most variation with coefficient 5. Among 19 numerical characters, the shell thickness was largest and the coefficient of variation was 21.89 %, and the smallest coefficient of variation of the oil content was 1.56 %. 32 phenotypic characters were mainly composed of 10 independent principal components, explained 81.757 % of total variance. The fresh weight, longitudinal diameter and transverse diameter in nut-in-husk were extremely significant or significantly positive correlated with the dry weight, longitudinal diameter and transverse diameter in nut-in-shell, dry weight, longitudinal diameter and transverse diameter in kernel. The percentage of kernel recovery was extreme significantly positive correlated with the dry weight of single kernel and negatively correlated with the shell thickness. The percentage of No.1 kernel was extremely significant or significantly positive correlated with the dry weight in nut-in-shell, dry weight, transverse diameter in kernel. The oil content was extremely significant or significantly positive correlated with the dry weight in nut-in-shell, dry weight in kernel and No.1 kernel percentage. |
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