The lemon-scented basil (Ocimum africanum Lour.) is known for its pleasant lemon aroma and diverse medicinal uses. A field experiment was conducted in the two consecutive years, 2017–2018 and 2018–2019, at CSIR-CIMAP RC Hyderabad, India, on the effect of different harvesting intervals on agro parameters and chemical constituents of aromatic-cum-medicinal crop lemon-scented basil (Ocimum africanum Lour.). The study aims to standardize the appropriate harvesting time for the maximum essential oil yield with high citral content across the years/environments and recommendations for the best harvesting time. It is cleared from this investigation that the harvesting stage, traits, environment, and harvesting interval (H) × Years (Y), harvesting interval (H) × traits (T), traits (T) × years (Y), and harvesting interval (H) × traits (T) × years (Y) interactions play a vital role in operating the gene expression for the essential oil yield, and others quality characters in the O. africanum variety CIM Jyoti. The most appropriate harvesting stage is recommended at a full blooming stage in 75 days for maximum essential oil production.

柠檬香罗勒（Ocimum Africanum Lour.）以其令人愉悦的柠檬香气和多种药用功效而闻名。连续两年（2017-2018 年和 2018-2019 年）在印度海得拉巴 CSIR-CIMAP RC 进行了田间试验，研究不同收获间隔对芳香兼药用作物柠檬的农业参数和化学成分的影响。香罗勒（Ocimum Africanum卢尔。）。该研究旨在标准化适当的收获时间，以在不同年份/环境中实现最高柠檬醛含量的最高精油产量，并提出最佳收获时间的建议。从本次调查中可以看出，收获期、性状、环境和收获间隔（H）×年（Y），收获间隔（H）×性状（T），性状（T）×年（Y），收获间隔 (H) × 性状 (T) × 年 (Y) 相互作用在操作非洲油菜品种 CIM Jyoti 的精油产量和其他品质性状的基因表达中起着至关重要的作用。建议在 75 天的盛开阶段进行最合适的收获阶段，以获得最大的精油产量。