IAS Aroid Quasi Forum

About Aroid-L
 This is a continuously updated archive of the Aroid-L mailing list in a forum format - not an actual Forum. If you want to post, you will still need to register for the Aroid-L mailing list and send your postings by e-mail for moderation in the normal way.

  Picking seeds before mother nature does.
From: SNALICE at aol.com on 1997.06.04 at 06:39:53(797)
Hello Greg and all,
I see you can pick seed clusters from sikokianums before they are
ripe, can you also pick them from Arum italicum? Like Greg, I am worried
that the clusters will be eaten before they can ripen. First, though, can
anyone tell me what the normal cycle is for italicum seeds? I have one
really nice cluster of large green fruit with a nice thick petiole under it,
and a couple of smaller ones. One of the smaller ones with just a few fruits
on it, has slumped to an upsidedown position, and the fruit has turned orange
and shrivled. Is it normal for the fruit to turn upsidedown into a hanging
position? Each one of these cluster's petioles looks like it has been
nibbled by bugs just below the fruit all the way around. Does this browning
happen naturally, or have they been chewed on? If they have been chewed, the
sow bugs are being picky, because this is the only area between the base of
the petiole and the top of the fruit that has been touched. The largest
cluster is still very green and still upright with plenty of thickness in the
petiole to hold them so far. My question is, if this brown area is caused by
bugs, and it's just a matter of time before they fall over, can I clip them
while green and expect them to ripen? The petiole which has already flipped,
had green fruit when it slumped, and turned orange while in the hanging
position. The petiole on this one is soft and limp where it turned brown.
Is it ok to harvest this one?
Thank you,
Sue Zunino

From: JimMcClem at aol.com on 1997.06.05 at 12:15:27(799)

When the situation that you describe happens to arisaemas, it usually means
that no fertile seeds are present. "False pregnancies" are commonly seen,
where it appears that a seedhead is developing, the berries begin to enlarge,
but then the peduncle starts to wither and the whole thing falls over. If you
check one of the berries, it usually contains nothing resembling a seed. I've
never paid that much attention to Arum italicum, but I'd bet that the same
thing pertains.

When we take an unripe seedhead of A. sikokianum and allow the berries to get
red, there are seeds present, and we do it in November or December when the
cold weather has produced the withering of the peduncle.

Jim McClements, Dover, DE

From: SNALICE at aol.com on 1997.06.06 at 11:25:51(806)
Before I thought of checking for actual seed, I picked the smallest of
the inflorescences (which had orange fruit on it) that had fallen over, and
took the fruit off, one by one, and dropped them in some dampened vermiculite
to see what would happen. When I read your note, I picked one up and
squeezed it (why I didn't think of this first, I don't know, and I hope no
one noticed!), and out came a little white seed! I am assuming that the
other larger infructesences are fertile as well. Now I suppose the question
is whether I should allow them to fall over or pick them. I just don't know
what they are SUPPOSED to do. The peduncle on the largest infructescence (if
that's correct) may be able to hold upright until the fruit turns, but I'm
afraid to wait to find out, unless this is what they are supposed to do.
Well, in view of the little one having fallen over, and still turning
orange, and having actual seed inside, they should be alright left alone?
Since they produced seed, does this mean that the seed will be viable?

From: grsjr at juno.com (George R Stilwell, Jr.) on 1997.06.06 at 14:08:39(807)

You need to remove the fruity stuff and clean the seed before you plant
it. Chemicals in the fruit will prevent the seed from germinating.

This also lets you see how many seed there really are. Ordinarily
Arisaema have several seed per berry.


From: SMWills33 at aol.com on 1997.06.07 at 20:49:39(809)

we grow Arum italicum pictum here in England (Zone 9, probably) and the
fruiting head, which is forming now, stays upright until it turns bright
orange and, eventually, the berries drop off the still upright peduncle.

I would try to leave the seeds to develope naturally if at all possible, but
if any plants are attacked try sowing the seeds that have formed, after
washing off the surrounding fruit. Slugs seem to be the main enemy for us,
chewing part way through the stem.

Hope this helps

Simon Wills

From: SNALICE at aol.com on 1997.06.08 at 09:16:13(810)
Hello Simon,

>>>>we grow Arum italicum pictum here in England (Zone 9, probably) and the
fruiting head, which is forming now, stays upright until it turns bright
orange and, eventually, the berries drop off the still upright peduncle.<<<<

From: SMWills33 at aol.com on 1997.06.09 at 15:39:14(817)
Hello Sue

Thank you for your queries which I found really stimulating. When one has
grown a plant for some years one tends to forget what it really does, so I
had great fun today going out to look.

Note: this is a very old post, so no reply function is available.