Cucumber (Cucumis sativus L) is a tropical vegetable crop of high economic importance. Cucumber is not only used as food but also the source of several antioxidant nutrients like β carotene and ascorbic acid. The present study was aimed to characterize gynoecious-parthenocarpic and monoecious cucumber lines along with their hybrids for qualitative, quantitative and quality parameters and regression modelling to predict the most sensitive characters influencing yield and nutrient contents (β carotene and ascorbic acid). Characterization revealed conspicuous variation in different qualitative and quantitative characters among the parental lines and hybrids. The gynoecious and parthenocarpic parent Pusa Parthenocarpic produced elongated fruits with acute shaped blossom and peduncle ends while, the other two monoecious and non-parthenocarpic parents, Devgiri and Seven Star produced cylindrical fruit with obtuse ends. All the monoecious × gynoecious hybrids expressed predominantly gynoecious sex form and late parthenocarpy. The monoecious parent recorded higher yield as compared to the gynoecious parent. Acute fruit shape at peduncle end was the sole qualitative character which positively influenced the ascorbic acid content of fruit. Regression modelling revealed fruit length, crispy fruit texture and total chlorophyll content to be most influential towards yield in a positive direction. This study confirmed the strategy of combining qualitative and quantitative characters to enhance yield and nutrient content which can be utilized to develop high yielding and functionally rich cucumber genotypes.

黄瓜 (Cucumis sativus L) 是一种具有高度经济重要性的热带蔬菜作物。黄瓜不仅用作食品，而且还是β胡萝卜素和抗坏血酸等多种抗氧化营养素的来源。本研究旨在表征雌性单性结实和雌雄同株黄瓜品系及其杂交种的定性、定量和质量参数以及回归模型，以预测影响产量和营养成分（β胡萝卜素和抗坏血酸）的最敏感性状。表征揭示了亲本系和杂种之间不同定性和定量性状的显着差异。雌雄同株和单性结实的亲本 Pusa Parthenocarpic 产生细长的果实，具有尖锐的花朵和花梗末端，而另外两个雌雄同株和非单性结实的亲本 Devgiri 和 Seven Star 产生具有钝端的圆柱形果实。所有雌雄同株 × 雌雄同株的杂种均主要表现出雌雄同株的性别形式和晚期单性结实。与雌雄同株亲本相比，雌雄同株亲本的产量更高。花序梗末端的尖锐果实形状是对果实抗坏血酸含量产生积极影响的唯一品质特征。回归模型显示，果实长度、脆果质地和总叶绿素含量对产量的正向影响最大。本研究证实了定性与定量相结合提高产量和养分含量的策略，可用于培育高产、功能丰富的黄瓜基因型。