Effects of Ascorbic Acid (As A) Seed Priming on Germination Performance of Seven Broccoli Cultivars

This dataset contains raw and processed data generated from a controlled laboratory study evaluating the effects of ascorbic acid (AsA) seed priming on germination performance and early seedling development of seven broccoli (Brassica oleracea var. italica) cultivars (Belstar, Covina, Green Magic, Gypsy, Imperial, Luna, and Patron). Seeds were subjected to seven priming treatments: unprimed control, distilled water (0 mg L⁻¹), and AsA concentrations of 1, 5, 10, 20, and 40 mg L⁻¹. The dataset includes daily germination counts, calculated germination parameters (germination vigour, final germination rate, mean germination time, germination index, vitality index), seedling morphological measurements (fresh weight, dry weight, seedling length), and derived seed vigour indices (SVI I and SVI II). Data were collected over a 7-day incubation period under controlled environmental conditions using a completely randomized design with five replications per cultivar × treatment combination. These data support the findings reported in the associated manuscript and enable reproducibility, secondary analysis, and comparative studies on seed priming and early seedling performance in broccoli and other horticultural crops.本数据集涵盖一项受控实验室研究所产生的原始与处理后数据，该研究旨在评估抗坏血酸（ascorbic acid, AsA）种子引发（seed priming）对7个西兰花（Brassica oleracea var. italica）品种（Belstar、Covina、Green Magic、Gypsy、Imperial、Luna及Patron）的萌发性能及幼苗早期发育的影响。供试种子共接受7种引发处理：未引发对照组、去离子水（0 mg·L⁻¹）处理组，以及浓度分别为1、5、10、20、40 mg·L⁻¹的AsA处理组。 本数据集包含每日发芽计数、计算得到的萌发参数（发芽势、最终发芽率、平均发芽时间、发芽指数、活力指数）、幼苗形态学测定指标（鲜重、干重、幼苗长度），以及衍生的种子活力指数I（SVI I）与种子活力指数II（SVI II）。数据采集于为期7天的萌发培养周期内，实验在受控环境条件下开展，采用完全随机设计，每个品种-处理组合设置5次生物学重复。 本数据集可为相关研究论文中报道的结果提供支撑，同时可为西兰花及其他园艺作物的种子引发与幼苗早期生长表现相关研究提供可重复性验证、二次分析及比较研究的数据基础。