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correct Ex Vitro?

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#1
Tobias Kulig

Tobias Kulig
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Hi all,
For some time I cultivate successfully Drosera InVitro. But I have difficulties to acclimate the plants. Can someone give me good tips?

I know that the plants need high humidity, the first time. Similarly, adjust gradually to the higher light doses. Should i do the pots in zip-lock-bags or in a room greenhouse?

I have lost 15 plants of Drosera regia (all were black). I don´t know the error. The substrate was peat-perlite-sand 1:1:1. The plants had slight water level.

Best regards
Tobias

Edited by Tobias Kulig, 04 April 2011 - 18:33 PM.


#2
Phil Green

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You seem to have picked one of the most difficult plants - so the problem may not be you or your conditions.

Apparently Drosera regia is particulary difficult to get passed seedling stage. I've read (and am now finding out), that they germinate well, but then struggle.
I've had several germinate last year and all grew fine, then suddenly the odd one keeps dieing - all are well spaced in the same pot. They grew 4 or 5 short seedling leaves, then the latest had just started to produce a longer more typical regia leaf and it up and died  :sweat:  I've no idea why, nothing changed and the other smaller seedlings are still fine. But I'm now worried for the couple of others which have just started the transition into longer leaves.

A difficult species.

#3
sativ

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I acclimatised near 300 D.regias and have reports about their acclymatisation from friends- succes rate for me is 80-90%.

They are difficult, but most important is pre-exvitro phase. They should have at least 5cm. Smaller plants easy die. Also roots should have min. 1-2cm.

Next planted out to peat:perlite 2:1, kept in 100% humidity for first few days,  lowered to 60% level. Too high humidity for long time causes rotting.

Zip bags causes constant 100% humidity and no air circulation- better are boxes possible to cover with transparent foil.


Greetings