AICRP on Agrometeorology, Department of Physics and Agrometeorology, JNKVV, Jabalpur-482 004, Madhya Pradesh, India
Online published on 30 November, 2019.
The field experiment conducted to study the heat units required during different phenophases in soybean (JS 335, JS 93–05 and 97–52), sown at different times (first and third week of July and first week of August) during 2008 and 2009 showed that the crop sown early (first week of Jyly) accumulated higher GDD, HTU, PTU and resulted in maximum HUE. Among the varieties, highest value of heat units and HUE was found in cv. JS 97–52 at Jabalpur. The growing degree days (GDD), heliothermal units (HTU), photo thermal unit (PTU) and heat use efficiency (HUE) were worked out for different phenophase.
Growth and yield, soybean, temperature, photopriyd, sunshine
