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Fri Apr 6 14:36:24 CEST 2007

hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: George Forsythe <geoforsy at AOL.COM>
Subject: Secondary leaves in first growth cycle
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I don't know if this is common or what, but it shocked me, and I would =like to know more about it. I had thought that only an eophyll was presen=t in the first growth cycle of germinated seed, but now I have 2 instance=s of secondary leaves growing out as well.

1 Of 10 seeds of A flavum planted on 10/29/06, all germinated by 11/19/0=6. On 12/20/06, I noticed that in 2 instances, small secondary leaves wer=e growing up alongside the eophylls. These looked exactly like the eophyl=l but smaller. When the plants went dormant in late January, tubers were =harvested, but no difference was seen in these 2 versus the rest.

2 34 seeds of A consanguineum were planted on 11/30/06, of these, 31 had=germinated by 1/12/07. On 3 21/07, I noticed secondary growth on 3 of th=ese. As of yesterday, 6 plants have shown secondary growth. 4 plants have=1 extra leaf, 1 has 2 , and 1 has 3 extra leaves. These do not look like=the eophylls, but are very long and narrow, looking like blades of grass=, and quite small compared to the eophyll. These plants are all still in =active growth.

So far, seeds of 8 other species I have germinated have not shown any of=these extra growths.

Is this something that frequently occurs, or is it possibly an effect of=my growing conditions? I have them under lights (12 hours on) at a fairl=y cool temperature of about 60-62 F.

George

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<div> I don't know if this is common or what, but it shocked me, and I wo=uld like to know more about it.&nbsp; I had thought that only an eophyll =was present in the first growth cycle of germinated seed, but now I have =2 instances of secondary leaves growing out as well.<br>
<br>
1&nbsp;&nbsp; Of 10 seeds of A flavum planted on 10/29/06, all germinated=by 11/19/06.&nbsp; On 12/20/06, I noticed that in 2 instances, small sec=ondary leaves were growing up alongside the eophylls.&nbsp; These looked =exactly like the eophyll but smaller.&nbsp; When the plants went dormant =in late January, tubers were harvested, but no difference was seen in the=se 2 versus the rest.<br>
<br>
2&nbsp;&nbsp; 34 seeds of A consanguineum were planted on 11/30/06, of th=ese, 31 had germinated by 1/12/07.&nbsp; On 3 21/07, I noticed secondary =growth on 3 of these.&nbsp; As of yesterday, 6 plants have shown secondar=y growth.&nbsp; 4 plants have 1 extra leaf, 1 has 2 , and 1 has 3 extra l=eaves.&nbsp; These do not look like the eophylls, but are very long and n=arrow, looking like blades of grass, and quite small compared to the eoph=yll.&nbsp; These plants are all still in active growth.<br>
<br>
So far, seeds of 8 other species I have germinated have not shown any of =these extra growths.<br>
<br>
Is this something that frequently occurs, or is it possibly an effect of =my growing conditions?&nbsp; I have them under lights (12 hours on) at a =fairly cool temperature of about 60-62 F.<br>
<br>
George<br>
</div>

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