Integrated screening of okra genotypes for resistance to sap-sucking pests: Multivariate analysis of biophysical and biochemical trait associations

This dataset contains comprehensive biophysical and trichome trait measurements from 20 okra (Abelmoschus esculentus L. Moench) genotypes screened for resistance against three major sap-sucking insect pests: leafhopper (Amrasca biguttula biguttula), aphid (Aphis gossypii), and whitefly (Bemisia tabaci). The dataset includes: • Resistance grades (HR/R/MR/MS/S/HS) for all three pests across 20 genotypes (IC/EC germplasm lines + cultivars) • Nine biophysical traits: plant height, stem thickness, leaf area, leaf thickness, leaf moisture content, fruit weight, pericarp thickness, fruit length, and fruit width • Eight trichome characteristics: density on adaxial/abaxial surfaces, midrib, veins, and total per leaf; plus trichome length measurements on four leaf surfaces Screening was conducted under field conditions at Dr. Panjabrao Deshmukh Krishi Vidyapeeth (PDKV), Akola, Maharashtra, India. Pest resistance was assessed using standard visual rating scales (0–5), while trichome densities were quantified microscopically (trichomes/cm²) and biophysical traits measured at flowering stage following standardized protocols. This dataset enables: ✓ Identification of trichome-mediated resistance mechanisms (PCA reveals total trichome density as primary resistance driver, loading = 0.93) ✓ Germplasm selection for okra breeding programs targeting multi-pest resistance ✓ Meta-analyses of host-plant resistance traits across solanaceous/cucurbit crops ✓ Validation of morphological markers for marker-assisted selection Data format: CSV files with clear column headers, units specified, and genotype identifiers matching IC/EC germplasm databases.本数据集包含20份秋葵（Abelmoschus esculentus L. Moench）基因型的综合生物物理性状与毛状体（trichome）性状测定数据，这些基因型被用于针对三种主要刺吸式口器害虫的抗虫性筛选：叶蝉（Amrasca biguttula biguttula）、棉蚜（Aphis gossypii）以及烟粉虱（Bemisia tabaci）。 本数据集涵盖以下内容： • 20份基因型（IC/EC种质系及栽培品种）针对三种害虫的抗虫等级：高抗(HR)、抗(R)、中抗(MR)、中感(MS)、感(S)、高感(HS) • 9项生物物理性状：株高、茎粗、叶面积、叶厚度、叶片含水量、单果重、果皮厚度、果长及果宽 • 8项毛状体特征：叶片近轴面（adaxial）、远轴面（abaxial）、中脉及叶脉的毛状体密度，单叶总毛状体密度，以及上述4个叶面的毛状体长度测定值 试验于印度马哈拉施特拉邦阿科拉市的潘贾布拉奥·德什穆克农业大学（Dr. Panjabrao Deshmukh Krishi Vidyapeeth, PDKV）田间条件下开展。抗虫性采用标准视觉分级量表（0–5分）进行评估，毛状体密度通过显微镜镜检定量（单位：毛状体/平方厘米），生物物理性状则于开花期按照标准化规程完成测定。 本数据集可支撑以下应用： ✓ 解析毛状体介导的抗虫机制（主成分分析（Principal Component Analysis，PCA）显示总毛状体密度为主要抗虫驱动因子，载荷值为0.93） ✓ 为面向多抗虫育种的秋葵育种项目提供种质选择依据 ✓ 开展茄科/葫芦科作物寄主抗虫性状的荟萃分析 ✓ 验证用于标记辅助选择的形态学标记 数据格式：采用CSV文件格式，包含清晰的列标题、指定的计量单位，且基因型标识符与IC/EC种质数据库相匹配。