What trigger Java Fern to grow plantlets

tiger15

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I have two type of Java Fern, Trident and regular wide leaf. I have never seen plantlets in my Trident, but from time to time, my regular JF grow plantlets at the tips. I recall reading somewhere that JF under stress will give off plantlets. Can it be true or there are other triggering factors. Both types are thriving in my high tech set up, so in no way my JF are under stress.
 

Hanuman

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There are multiple factors that trigger a plant to start reprodution but in my experience with the triddent, needdle, narrow and broad ferns too much light will trigger that so I tend to keep them shadded.

I will let the plant experts answer with factual info.
 

becks

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I have one trident fern that is shaded which very rarely drops plantlets, the other in high light drops them all the time.
 

tiger15

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I have one trident fern that is shaded which very rarely drops plantlets, the other in high light drops them all the time.
Can high light be stressful to Java fern that cause it to reproduce plantlets? JF are low light plant and in nursery, they are often grown with sunscreen protection.

I have two patches of JF, regular and Trident grown side by side, under the same low to medium light intensity of about 40 PAR. I have never seen plantlets in my Trident, and my regular was mostly free of but suddenly popped up with plantlets. Since both are grown under the same condition, what triggered the sudden burst of plantlets in the regular but not the Trident is perplexing to me.
 

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I've noticed that if the leaf is old and going to detach it makes the plantlets so I always give them a little pull when cleaning the leaves from the plantlets to see if it is loose.

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