Which vegetables varieties can be sown in this temperature?

It is the time of sowing of pumpkin family varieties (bottle gourd, summer squash, custard apple, cucumber, bitter gourd, watermelon, muskmelon, etc.). Before sowing the seeds, they  should be treated by captan  or thiram@ 2.0 g/kg seeds. While ploughing the field,farmers are davised to add farm yard manure to the field. Depending on the season, pumpkin vegetables should be planted between the rigdes.