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STEVIA SEEDS
The seed of stevia is tiny and light. For proof, the weight of 1000 seeds of Stevia Rebaudiana hardly exceeds 300 milligrams.
It possesses in its wild state a seed and small hairs which allow it to propagate with the wind. In our regions, this mode of distribution is not possible because the average temperatures and the precipitation are not consistent to the development spontaneous of this herb.
The seed of stevia has to be kept in a dry and cold place, shielded from the light (a refrigerator is thus perfect). Numerous Japanese experiments demonstrated the excellent durability of the seeds of stevia when they are kept in these optimal conditions.
Graines de Stévia |
Besides only the seeds of dark color (black, dark brown) possess a germinal power. The clearer seeds ( clear or green chestnut) are not fertile, flowers not having been pollinated at the right moment.
Note that the germinal power is generally situated near 10 in 15 % on not sorted out seeds.
Nevertheless, on a lot of seeds having been kept in a optimal way and on which a meticulous sorting was operated, we can hope widely to exceed this return. |
Finally, this germinal reduced power of the seeds of stevia does not allow to envisage the intensive farming with very big turntable ladder of this plant, as it is possible for the wheat for example.
The best way of reproducing it and of multiplying rest the cuttings. Actually, the hand of necessary work to plant one hectare of stevia (or approximately 80 000 to 100 000 plants) is very heavy.
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