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preg_replace_callback(): Requires argument 2, 'Array', to be a valid callback [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace_callback(): Requires argument 2, 'Array', to be a valid callback [phpBB Debug] PHP Warning: in file [ROOT]/viewtopic.php on line 1827: sizeof(): Parameter must be an array or an object that implements Countable [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4808: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3896) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4810: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3896) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4811: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3896) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4812: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3896) Carnivorous Plants Italia • Leggi argomento - Impollinazione capensis x filiformis???
Ragazzi si potrebbe impollinare una drosera capensis con il polline di una filiformis o viceversa?? Il problema è che sarebbero un subtropicale e una temperata... Se si come faccio a non farla autoimpollinare? Taglio gli stami?
poi devi vedere se ciò che viene è fertile o sterile.. buon incrocio... ma come mai vuoi impollinare proprio queste due specie? cosa vuoi ricavare da una e dall'altra per ottenere un ibrido di che tipo?
Diciamo che voglio fare una prova ... Allora se ho capito bene levo gli stami da il fiore che viene impollinato, il problema è come faccio a farlo prima che sbocci??
L'impollinazione non avviene quando il fiore sboccia,bensଠquando si richiude...quindi in teoria devi staccare gli stami dal fiore "madre" una volta che si è aperto.
Ciao per ottenere un ibrido, si devono incrociare due specie con lo stesso patrimonio genetico (2n). La capensis ha 40 cromosomi (2n) mentre la filiformis ne ha solo 20 (2n). Quindi al 99% non sarà possibile ottenere la fecondazione da ambo le parti, con l'1% di possibilità si otterranno semi che germinando daranno vita ad una pianta del tutto sterile.
Ok, quindi non può funzionare la fecondazione... Mi dite dove posso trovare quanti cromosomi hanno le varie piante per provare a fare ibridi in futuro?? Incrociando queste due specie dovrei cosa dovrei avere??? 1% sterile che vuol dire?? Scusate per le domande me non ci capisco molto