Vol. 11, Special Issue 12 (2022)

Flowering phenology of cucurbits ensures better cross- pollination for higher fruit set and yield. The flowers of cucurbits are usually monoecious as they produce male and female flowers separately on the same plant at different internodes. The time of anthesis was started from 07 00 h and continued up to 08 10 h while that of stigma emergence started at 07 15 h and continued up to 08 20 h during 2018, whereas during 2019, time of anthesis and time of stigma emergence, observed that the anthesis was started from 07 00 h and continued up to 08 05 h while that of stigma emergence started at 07 10 h and continued up to 08 15 h in natural pollination. The time of anthesis was started from 07 20 h and continued up to 08 45 h, whereas, that of the stigma emergence was started from 07 35 h and continued up to 08 50 h during 2018, whereas, during 2019, the time of anthesis was started from 07 15 h and continued up to 08 25 h while, that of the stigma emergence was started from 07 23 h and continued up to 08 25 h in pollination without insect. The experiment to study the floral biology of cucumber was undertaken at farmer field during summer, 2018 & 2019.