3

I soaked lettuce seeds in distilled water for 12 hours.Then, I transferred them to petri dishes that had double folded filter paper moistened with distilled water. The petri dishes were then left in a room for 72 hours (Petri dishes were covered with transparent glass). After 72 hours,when I checked the petri dishes, only a small radicle had come out from the seeds and no hypocotyl could be seen. I left the petri dishes for 2 more days, but there was no further growth. Is there is problem with my seeds?

  • I'm wondering whether there is a reason you are going to so much trouble to germinate these? Lettuce generally does well when direct sown. – michelle Nov 1 '16 at 14:57
1

For lettuce seeds germination you must provide a temperature of at least 3-4 Celsius degrees, but the optimal is 18-20. Soaking the seeds is not necessary. The small radicle will become the tap root. A possible cause for your seeds not having hypocotil is that the radicle needed to be in a vertical position for the rest of the plant to develop. Also, it would be interesting to know how many seeds have germinated.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.