In 4 days, and although these coriander seeds in the plastic cup (left) have been placed in a much cooler spot (average temp. about 5 deg C), the roots (radicles) have doubled in size (compared with right, taken 4 days ago) and are now about 2.5 cm (1 inch) long.Novice growers are often amazed to see so much root development with hardly anything happening above ground. And because we can also see water droplets on the side of the cup, we know the seeds do not need watering, no matter how dry the surface gets. This is wonderful, since we can now at last avoid the 'cardinal sin' of OVER-WATERING, and quickly develop a good watering technique.
BUT THERE'S MORE . . .
I don't know about you, but I was surprised to see coriander growing in such cool conditions. Although, having said this, it is mostly the root which has grown. This is good. Because a low temperature produces stronger, healthier plants.
Note: Coriander seeds are unusual in that they seem to produce two plants per seed (there would normally be only one root (radicle) per seed). No one ever seems to mention this. A coriander seed produces two radicles, each of which will develop into a separate tap root.
3 comments:
That's coz the coriander 'seed' is a fruit with two seeds in it. Which is why cracking the 'seed' hasten germination as it allows water to reach the actual seed.
Of course. What a klutz I am! Will have to get to the back with the dunce's hat and the raffia. Thanks for your help.
Just had another thought. Does anyone know whether the two seeds are identical twins? In other words, have they come from one egg or two?
If they are identical, then this is good for testing different treatments, since it will eliminate a lot of possible errors.
And if anyone has any ideas about how to get the roots to fill even more of the compost, I am all ears.
Thanks again.
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