Tropical and subtropical vegetables (2+1)

Physiological disorder

Poor seed germination: Seed germinate poorly when soil temperature remains at or below 200C. The problem occurs during early spring summer cultivation when seeds are to be sown at low temperature condition.
Control:

a. Soaking the seeds in water for 24 hours.

b. Soaking the seeds in hot water at 450C for 1 ½ hours.

c. Seed treatment with alcohol for half an hour.

d. Water soaked seeds after tying in a piece of cloth are put into a heap of fresh cow dung overnight. Heats released due to decomposition of cow dung stimulate germination.