于翠香　张海燕　张宇航　杨贵春　王占海　管洪波

摘要 以16份薄皮甜瓜为试材，采用方差分析和线性回归分析，研究不同甜瓜种质之间的差异性及果实性状间的相关性。结果表明，甜瓜果实长度变化幅度最大，种子长度和宽度变化幅度最小;果实宽度变异系数最小为6.92%，单瓜重的变异系数最大为20.45%。小区产量与果实长度、种腔长度和果形指数呈极显著正相关，与果实宽度呈显著负相关;单瓜重与果肉厚度、果实长度、果实宽度、种腔长度呈极显著正相关，与果形指数和种子长度呈显著相关。结果说明薄皮甜瓜的单瓜重遗传力低，易受外界环境的影响。育种中以单瓜重和果形为目标，不仅要注意果实长宽度和果肉厚度的选择，更要注意栽培措施的改进。

关键词 甜瓜;果实性状;方差分析;相关性分析

中图分类号 S652文献标识码 A

文章编号 0517-6611（2020）22-0047-04

doi：10.3969/j.issn.0517-6611.2020.22.014

Correlation Analysis of Fruit Characters of Muskmelon

YU Cui-xiang ，ZHANG Hai-yan，ZHANG Yu-hang et al （Industrial Plant Institute，Jilin Academy of Agricultural Sciences，Gongzhuling，Jilin 136105）

Abstract Sixteen muskmelons were used as test materials to study the differences between different muskmelon germplasms and the correlation between fruit characters by variance analysis and linear regression analysis.The results showed that the variation range of fruit length was the largest， the variation range of seed length and width was the smallest， the variation coefficient of fruit width was 6.92%， and the variation coefficient of single melon weight was 20.45%.Plot yield was significantly positively correlated with fruit length， cavity length and fruit index， and negatively correlated with fruit width; single melon weight was significantly positively correlated with pulp thickness， fruit length， fruit width and cavity length， and significantly correlated with fruit shape index and seed length.The results showed that the heritability of single melon weight of muskmelon was low， and it was easy to be affected by the external environment.In breeding， we should not only pay attention to the selection of fruit length and width and pulp thickness， but also pay attention to the improvement of cultivation measures.

Key words Muskmelon;Fruit characters;Analysis of variance;Correlation analysis

基金项目 吉林科技发展计划项目（20191001004XH）。

作者简介 于翠香（1979—），女，吉林蛟河人，助理研究员，硕士，从事瓜类育种和栽培研究。

收稿日期 2020-04-19

甜瓜是世界十大果品之一，也是我国重要的设施栽培作物[1]，在我国各个省市均有种植。果实性状对甜瓜的商品性及产量有着非常重要的影响，果实性状的形成除了受遗传基因控制外，环境条件对果实生长发育的影响也不容忽视[2-3]。目前，大部分学者对于甜瓜的研究多偏向于分子标记、基因定位、种质遗传多样性等方面。杨光华等[4]、Monforte等[5]、张红等[6]、金基石[7]、姚国新[8]分别对果皮颜色的基因定位、糖酸性状遗传及种质遗传多样性等进行了研究，而对于果实性状间的相关性研究报道较少。……