We sowed Watermelon seeds, 20 days ago. There was precipitation continuous, due to winter, for 7 days after the date of sowing. Lot of seeds have not germinated. Those seeds that have germinated gave out plants which has these kind of leaves as shown in the picture. Some plants are very very small and some are big enough. But this problem is leaves is a consistent one. We use drip irrigation and before this crop, we grew banana crop in the same land. Please provide guidance as to how to overcome this issue.

Leaves are closing themselves, seeds haven't germinated and those that have germinated are very small. WATERMELON.