Daylilies forum: Hybridizing with Sibling Crosses

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Name: Debra
Nashville, TN (Zone 7a)
Daylilies Cat Lover Butterflies Region: Tennessee Seed Starter
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shive1
Aug 24, 2020 11:20 AM CST
Have any of you crossed sibling seedlings with good results? This year I had several instances of siblings with beautiful faces with very low bud counts, and plain looking sibs with fantastic plant habits. I've already successfully crossed some of them, and plan to try with others next season. I'd love to see of photos of seedlings that have come from sib crosses.

Also what registered cultivars do you know of that have sib crosses in the background?
Name: Maurice
Grey County, Ontario (Zone 4b)
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admmad
Aug 24, 2020 1:42 PM CST
@shive1
Diploids or tetraploids? There are basic genetic differences in what we would expect from sibling crosses in the two types. Diploid sibling crosses are expected on average to have much stronger inbreeding depression. This might appear as the scape heights might be low, bud counts low, rate of increase low, etc. There should be much less of a problem, if any noticeable, with tetraploid sibling crosses.
Maurice
Name: Debra
Nashville, TN (Zone 7a)
Daylilies Cat Lover Butterflies Region: Tennessee Seed Starter
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shive1
Aug 25, 2020 9:35 AM CST
Thanks for the info, Maurice. I'm breeding tets.
Name: Tim
West Chicago, IL (Zone 5a)
Daylilies Native Plants and Wildflowers Vegetable Grower
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Lyshack
Aug 25, 2020 1:29 PM CST
Debra, my focus this year was on crossing siblings and plants with a parent in common, and crosses where I where I circled back to cross with one of the parents because I was curious about this. I'll let you know what I find out in two or three years. Smiling
Name: Debra
Nashville, TN (Zone 7a)
Daylilies Cat Lover Butterflies Region: Tennessee Seed Starter
Image
shive1
Aug 25, 2020 7:08 PM CST
Tim - I'll be looking forward to the results of your sibling experiments in the future. I think Mort Morss did some sibling crosses with his patterned lines, and I know he crossed a lot of seedlings that had Julie Newmar as one of the parents.Marilyn Morss Johnson was the result of crossing three seedlings with Julie Newmar as a parent. I'm not sure what other hybridizers did this, but it sure makes sense to me.
[Last edited by shive1 - Aug 25, 2020 7:13 PM (+)]
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