The present investigation on coriander (Coriandrum sativum L.) included three sowing dates viz.
15th October (D1), 30th October (D2) and 15thNovember (D3) and four selected cultivars; Baladi (C1), Syrian
(C2), Indian (C3) and Sudan cultivars (C4). The experiment was conducted during two successive cultivation
seasons of 2018/2019 and 2019/2020 in the experimental farm of Assuit. This experiment carried out to assess
yield, quality and economics of coriander cultivars under agro-ecological conditions of this region. Phenological
traits (time to flowering initiation, maturation and harvest), along with morphological characters, yield and two
chemical traits related to seed composition were evaluated. As a result of this study, all investigated characters of
coriander were varied significantly, as well as the maximum number of branches, number of umbels / plants, seed
yield/ plot and seed yield/ fed. were recorded in the plants sown on 15th October followed by 30th October. The
essential oil percentage from coriander fruits was ranged between 0.26% and 0.63%. Linalool was found to be the
principal constituent. The other major compounds were Alpha pinene, Limonene, Citronellal and geranyl acetate.
The maximum oil percentage was recorded in Syrian cultivar at all dates. Results revealed that parameters like
minimum days to flowering initiation, minimum days to 50% fruit maturation and minimum days to harvest were
recorded with Indian followed by Syrian cultivars at different dates. The result of experiment revealed that the D1
significantly improved growth parameters among all the dates of sowing. The best results were obtained from
Baladi, Syrian cultivars, with respect to fruits yield and essential oil respectively.