【摘要】 “遵化老蚧黄瓜”是唐山遵化市旱黄瓜地方品种，为了解其原始群体性状分离情况，在冬春茬日光温室栽培条件下，对578株原始群体的第一雌花节位、雌花节率、分枝性及商品瓜品质等性状进行调查分析。结果表明，主要农艺性状存在不同程度的混杂，主蔓雌花节率变异系数为185.2%、一级分枝率和一级分枝有效分枝率变异系数分别为46.6%和177.6%;单瓜重、瓜长、瓜横径变异系数分别为15.6%、7.9%、8.0%,可溶性固形物含量变异系数为13.0%;第一雌花节位主要分布在6～11节，占比61.3%;第一分枝节位集中在5～7节，占比63.7%。大瓜瘤占比20.4%,瓜刺稀密度占比16.1%。更多还原

【Abstract】 “Zunhua Laojie Cucumber” is a local variety of drought cucumber from Zunhua City, Tangshan Province. To investigate the trait segregation of its original population, the first female flower node position, female flower node rate, branching characteristics, and commercial fruit quality of 578 plants in the original population under winter-spring season greenhouse cultivation conditions were analyzed. The results revealed a certain degree of heterogeneity in the main agronomic traits. Specifically, the coefficient of variation of the main stem female flower node rate was 185.2%,and the coefficient of variation of the first branch rate and the effective branch rate of the first branch were 46.6% and 177.6%,respectively. The coefficient of variation of single fruit weight, fruit length, and fruit transverse diameter were 15.6%,7.9%,and 8.0%,respectively, and the coefficient of variation of soluble solid content was 13.0%. The first female flower node position was mainly distributed from the 6th to the 11th node, accounting for 61.3% of the population. The first branch node position was mainly concentrated from the 5th to the 7th node, accounting for 63.7% of the plants. The proportion of large fruit nodes was 20.4%,and the proportion of sparse density of melastoma was 16.1%.更多还原