Re: HYB: germination - chill time
- Subject: Re: HYB: germination - chill time
- From: Linda Mann <firstname.lastname@example.org>
- Date: Sat, 27 Jun 2009 14:58:27 -0400
Thanks for the detailed post, Chuck. Surprising that such warm temps
are considered "chilling". No wonder the topic is so confusing!
Re: non-shelled seeds: The moisture in the pods keeps seeds hydrated, &
the loosely folded plastic baggie keeps the moisture there.
Some of the IMMORTALITY crosses take the longest chilling and have the
lowest % germination. Not all, though, and I haven't detected any
trends for which ones they are. My suspicion is that seed development
is stressed before/during bloom & during pod formation, not genetic,
other than susceptibility to stress?
Most crosses here take around 3 months of chilling - that's when I used
to take all burritos out of the fridge. Some wouldn't germinate till
the second round of chilling. So now I don't take them out until at
least one seed from the cross has started to sprout.
Or after ~5 months (~first of Dec; occasionally later for really late
pods), whichever comes first ;-)
I think the Spoons have said that they get better germination with 4
months than with just 3, which is why I started leaving them in the
fridge a little longer.
Benefit of not shelling immediately is that it just suits my temperament
better than having to shell each one the minute the pod starts to split.
Less trouble to just pop the pod in a baggie and put it in the fridge.
This way, I can shell a batch of them when I'm in the mood/stuck indoors
because of air quality/allergens/heat/rain. As long as I get them all
burrito'd within a couple of months. Nothing has shown any sign of
starting to sprout in the pods so far.'
I'm not sure I know what you mean by "too early harvest" - you mean they
mature too early here, compared to ? Typical timing from pollination to
pod split is variable - 8 to 12 weeks. Mostly ~8 weeks. Faster in hot,
dry weather. Usually.
I try not to harvest until the pod starts to split, unless the stalk
rots. Then I leave as much green stalk as possible with the pod on a
sunny window sill to ripen indoors. Splitting pods usually have turned
partially brown, but still have some green, quite a bit on some. Seed
color (seen thru the split in the pod) varies from nearly white to dark
brown; average is tan.
Maybe you are thinking of the miracle 5 day old pod snapped off by the
microburst? That pod not only matured normal looking seeds, but they
actually germinated! Totally unexpected and bizarre.
No noticeable difference in germination rate/required time of chilling
between immediately shelled & shelled later, but that's comparing
Before I set the thermostat in the fridge high enough to make sure seeds
<never> freeze in burritos, germination was worse. I think. Again,
comparing different years.
<Linda, I suspect your procedure has some elements that make germination
slower. ie: occasional drying out which resets chilling hour clock. Or
perhaps too early a harvest coupled with putting unshelled pods into
burritos. I can't see any benefit of not shelling pod before placing in
Rhizome sale today and tomorrow
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