Ninety-eight bael accessions were evaluated for imperatorin content, essential oil and fruit yield. They showed wide variation in terms of fruit shape, size, plant height, plant spread, stem girth, number of fruits per tree, weight of fruit, pulp weight per fruit, skull weight per fruit, skull thickness, gum and seed weight, average fruit yield, total soluble solids, imperatorin and essential oil content. The highest fruit yield, imperatorin and essential oil content in fresh leaves were observed in DAM—25 (123.37 kg tree⁻¹), DAM—124 (2.99 mg g⁻¹), and DAM—161 (6.50 g kg⁻¹), respectively. The first 10 principal components contributed 97.21% of the total variability, and the highest variation was contributed by the first component (31.71%), followed by the second (20.01%), third (9.55%), and fourth components (7.67%). A dendrogram generated from morphometric data grouped all 98 accessions into five major clusters. Accessions, namely DAM—124, DAM—160, DAM—10, DAM—36, DAM—161, DAM—17, DAM—25, and DAM—71, were most distinct and rich in fruit yield, fresh leaf yield, essential oil yield, and imperatorin content; therefore, they were suitable for cultivation and industrial purposes. The present study revealed that morphological and chemical markers may be successfully utilized for determining genetic diversity and genetic relationship in the bael group and may be used successfully in breeding programs.

对 98 个 bael 种质的欧前胡素含量、精油和果实产量进行了评估。它们在果实形状、大小、株高、株距、茎周长、每棵树的果实数量、果实重量、每个果实的果肉重量、每个果实的头骨重量、头骨厚度、树胶和种子重量、平均果实产量、总可溶性固形物、欧前胡素和精油含量。DAM-25 (123.37 kg tree ^-1 )、DAM-124 (2.99 mg g ^-1 ) 和 DAM-161 (6.50 g kg ^{-1 ) 的鲜叶果实产量、欧前胡素和精油含量最高}）， 分别。前 10 个主成分贡献了总变异性的 97.21%，变异最大的是第一个成分（31.71%），其次是第二个（20.01%）、第三个（9.55%）和第四个成分（7.67%） . 从形态测量数据生成的树状图将所有 98 个种质分为五个主要集群。种质，即 DAM-124、DAM-160、DAM-10、DAM-36、DAM-161、DAM-17、DAM-25 和 DAM-71，在果实产量、鲜叶产量、必需产油率和欧前胡素含量；因此，它们适合种植和工业用途。本研究表明，形态学和化学标记可以成功地用于确定 bael 组的遗传多样性和遗传关系，并可以成功地用于育种计划。