Latest / Hydroponics Daily / Cuttings for propagation in hydroponics - Part 1
Transcript
- 0:00Hi, welcome back to Hydroponics Daily. Today we're moving on to propagation
- 0:03and we're going to talk about taking cuttings, which is a very common way of
- 0:08propagating your plants.
- 0:09It allows you to maintain the genetics of the mother plant, so it's good for that reason.
- 0:16And it's also good because you get a young plant very quickly,
- 0:19whereas with seeds, some seeds can take many, many weeks to get to a young plant stage.
- 0:25So with a cutting you're making
- 0:27a clone that's another phrase for it so clones
- 0:30or cuttings in hydroponics people tend to
- 0:33refer to them as clones but in horticulture in general
- 0:36it's cuttings and you take
- 0:39young stems off a mother plant and
- 0:43in supporting you don't take them off older tissue and also
- 0:46from mother plants that have
- 0:50never flowered because once they are flowered and
- 0:53they've become mature then then the
- 0:57success rates of what of
- 0:59rooting is much lower this swiss cheese plant for example
- 1:02here this is a juvenile leaf because it's not
- 1:05got any indentation the holes in
- 1:08it this is a mature leaf down here the stems
- 1:11from the mature part of the plant would
- 1:14be far lower success rate of rooting same
- 1:17with eucalyptus they have two different types of leaves depending on
- 1:20whether they're mature and so if that plant has flowered then your chances.
- 1:24Of success are much lower you also want to choose upright
- 1:27stems because they'll have more auxin
- 1:30traveling down them from the top of the plant where side stems lower
- 1:33branches far less auxin which is
- 1:36synthesized in the meristem the bud at the
- 1:39top it travels down the cells of the
- 1:42plant and they accumulate at the
- 1:45bottom where they promote rooting now if you've
- 1:48got a side stem they're not going to much auxing
- 1:51coming out of them so always try and choose them from the top a non-flowering
- 1:54stem because the flower will just take up her energy as well so that that flower
- 1:59wants to develop it's already got the the cells there it's already got the the
- 2:03the all the apparatus needs to produce a flower and then you you cut it off
- 2:08and then it's like well i'm not going to revert now to vegetative growth and so it just dies off.
- 2:15That's the important part when it comes to the mother plant,
- 2:17making sure it's disease-free, making sure it's pest-free, and making sure that
- 2:23you harvest the cuttings.
- 2:25Early on in the day, when the cells in the cutting are going to be full of water
- 2:32because they've soaked up the water during the night, they're going to be 100% turgid.
- 2:36Whereas if you did them in the midday or later on in the day,
- 2:40they've evaporated, they've transpired,
- 2:42and then they're waiting for that pull of the water to come up.
- 2:45So success rate would be much better if you take it first thing in the morning.
- 2:49And what else can we say about taking cuttings when you take
- 2:52them if you're taking a lot of cuttings make sure you store
- 2:55the cuttings in sort of
- 2:58damp paper or hessian or tea
- 3:01towels things like this so that they don't evaporate water while you're taking
- 3:06more cuttings because if they're drying out on a table then they're dying and
- 3:12the water they lose when they're cutting is critical because they have to keep
- 3:16hold of that water for weeks until the roots are developed.
- 3:20So try taking them in batches or one at a time and striking them,
- 3:23putting them into the humid environment.
- 3:26And so that's critical when it comes to choosing the time and the place and the plants to pick off.
- 3:33Obviously, you want to choose good genetics, good plants to take the material from.
- 3:38If you're choosing a variegated plant, you'll need to choose from the area of
- 3:42the plant with the variegation that you want.
- 3:44And it's important to note that some plants you cannot propagate via cuttings.
- 3:50So certain conifers, for example, cannot be cultivated by cuttings.
- 3:55Some conifers you can, but others you have to grow by seed or layering and things
- 4:00like this. So that's important to note.
- 4:03And also important to note that if it's a variety that is protected by plant breeders'
- 4:10rights, if you're protecting the genetics then if you're propagating them officially
- 4:14you need to pay some money towards the breeder of that plant to propagate it so for example.
- 4:22I can't think of one black lace and a
- 4:26type of elder that that would you'd have to play that pay the royalties to the
- 4:30people who bred black lace down in east morling so that's an example of of a
- 4:35plant or a strawberries strawberries are a great example all the strawberries
- 4:38will they'll be a breeder for all the main varieties of strawberries.
- 4:42Although, yeah, you don't use cuttings for strawberries, so what the hell am I talking about?
- 4:47That's Hydroponics Daily for today. Cuttings, we're going to talk about the
- 4:49techniques tomorrow. Okay, thank you.