Performance of greengram (Phaseolus radiatus) varieties under different dates of sowing during winter season

A field experiment was conducted during winter season (pre-rabi sowing) of 1996 and 1997 at Orissa University of Agriculture and Technology, Regional Research Station, Chiplima, to study the response of greengram (Phaseolus r adiatus L.) varieties to date of sowing. Variety 'Nayagarh Local' gave the maximum seed yield (978 kg/ha), followed by 'Sujata' (937 kg/ha) and 'PDM 5 4' (878 kg/ha). Sowing on 10 September was the best date with seed yield of 969 kg/ha. A delay of 10 and 20 days In sowing reduced the seed yield by 1 4.2 and 30.0% respectively. Most yield components varied significantly due to varieties but not due to dates of sowing. Incidence of yellow mosaic vir us, cercospora leaf-spot and powdery mildew was the minimum in 'PDM 54' and in the crop sown on 10 September.