Progrow Hydroponics - Propagation - Progression and hardening-off - Cuttings

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Progression and hardening-off - Cuttings - Paul Fowler

SECTION 2 - CUTTINGS

PROGRESSION AND HARDENING-OFF

Progression - day 1 DAY1

Initially the cuttings will wilt but should remain green and healthy.

DAY2

Your cuttings should now be picking up. Although the lcavcs may still wilt the head should now be moving towards the light.

DAY3

By now they should he standing upright with the leaves starting to move towards the light.

DAY4 +

Now they should be looking healthy and the leaves should be arching towards the light.

These first four days are the most crucial. If after this time the cutting is still wilting then something is probably wrong (possibly an embolism). If several plants are wilting then the problem is probably environmental. Check the following:

Make sure the rooting medium is not too wet or dry
Make sure the humidity is around 80% - 90%.
Make sure the temperature is around 24°C.

If after four days to a week the cutting is still wilting then carefully check the Rockwool block/rooting medium for any roots, if none have grown then they will need to be re-cut.

Remove from the Rockwool block/rooting medium as carefully as possible.
Re-cut the stem (at a 45° angle).
Re-apply rooting gel/powder.
Replace in to new Rockwool block/rooting medium as soon as possible.

DAYS 4-7

Little really happens above ground in the first week, but below ground the division of
cells at the cut stem will have a initiated basal swelling from which the roots will
develop.

WEEK 2

In the second week there should be observable development. The cutting should have put out roots and have started feeding, with initial sprouting of new growth above ground.

Do not worry if the lower leaves turn yellow or brown — this is a good indication that the roots arc growing. However, if they look burnt at the edges, there may be a poor connection and roots may not have developed.

WEEK 3

By now the initial adventitious roots should be seen protruding from the rooting medium, and new leaf growth should be occurring.

The cutting is now ready for planting into a system or transferring into a larger Rockwool block.

<< Section 2 - Taking a softwood cutting

Section 2 - Preparation >>