Daylilies forum: Crown rot resistance

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So Cal (Zone 10b)
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OldGardener
Aug 6, 2013 12:21 PM CST
Is there a database or information regarding the rot resistance of particular cultivars available anywhere? Maybe something like rust resistance scores but for crown rot instead? I am currently trying to get a feel for how different cultivars react to conditions that are conducive to crown rot but I am hitting a wall. It is my understanding that some cultivars seem more resistant to crown rot than others and other cultivars seem to rot very easily (I think that tet conversions fall into this latter group but please correct me if this is wrong) bu,t if there is a list somewhere out there, it sure would help. Thanks Big Grin
"In the end, it's not the years in your life that count. It's the life in your years." -Abraham Lincoln

caitlinsgarden
Aug 6, 2013 1:03 PM CST
Could you please explain what crown rot is?
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dormantsrule
Aug 6, 2013 1:09 PM CST
caitlinsgarden said:Could you please explain what crown rot is?


Here you go.
http://www.daylilies.org/ahs_dictionary/crownrot.html





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(Zone 7a)
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dormantsrule
Aug 24, 2013 7:36 PM CST
OldGardener said:Is there a database or information regarding the rot resistance of particular cultivars available anywhere? Maybe something like rust resistance scores but for crown rot instead? I am currently trying to get a feel for how different cultivars react to conditions that are conducive to crown rot but I am hitting a wall. It is my understanding that some cultivars seem more resistant to crown rot than others and other cultivars seem to rot very easily (I think that tet conversions fall into this latter group but please correct me if this is wrong) bu,t if there is a list somewhere out there, it sure would help. Thanks Big Grin


I was just reading this article and about roots and from paragraph 5 -

"...The variability of roots and crown structure is very interesting and may be something to which more attention should be paid. It is my experience, for example, that dividing a clump where each fan is separate from the rest in the clump is much easier than dividing a clump where every fan grows from one main crown. While this may not make much difference if you are only concerned with growing the plant in your garden, for breeders and sellers, this can make considerable difference. I would note that I have personally noticed much more crown rot in those types that have one crown from which all the fans grow and that must be cut apart to make divisions, than in other types. The cutting apart of the crown must be much more stressful when dividing than simply pulling apart individual fans..."

http://daylilybreeder.blogspot.ca/2013_01_01_archive.html


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So Cal (Zone 10b)
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OldGardener
Aug 24, 2013 8:43 PM CST
Thank you so much - this is exactly what I was looking for!. Do you know if tet conversion roots differ from their diploid originals? Or is the entire plant just inherently weaker in general? Again - thank you!
"In the end, it's not the years in your life that count. It's the life in your years." -Abraham Lincoln
(Zone 7a)
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dormantsrule
Aug 25, 2013 3:57 AM CST
OldGardener said:Thank you so much - this is exactly what I was looking for!. Do you know if tet conversion roots differ from their diploid originals? Or is the entire plant just inherently weaker in general? Again - thank you!


I don't know the answer but I have lost 3 tet conversions. From my notes what I did notice about 2 of them was that buds kept aborting on the first scapes they had and then the leaves starting turning yellow, etc.



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Name: Jan
Hustisford, WI
I was one of the first 300 contributors to the plant database! Cat Lover Daylilies Dog Lover Irises Region: United States of America
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philljm
Aug 25, 2013 5:18 AM CST
I think it would be easier to list ones that did succumb to crown rot, than which ones didn't ~Jan

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