Search found 116 matches

by Plazbo
Tue Nov 12, 2019 4:44 pm
Forum: Rose Hybridizers Association Forum
Topic: Show and Tell?
Replies: 25
Views: 1238

Re: Show and Tell?

Image

OP seedling from Baby Faurax. Yellow base and reverse.

The only yellows nearby were Sunny Knock Out and Sweet Spot Calypso, Foetida, Golden Cheronese...likely pollen from further away as none of those seem appropiate at this point.
by Plazbo
Sun Nov 10, 2019 4:16 pm
Forum: Rose Hybridizers Association Forum
Topic: Anyone breeding for fall color?
Replies: 11
Views: 162

Re: Anyone breeding for fall color?

Glauca has the canina meiosis/unbalanced chromosomes issue (3+1). I've been attempting to use it as pollen on diploids as a source of low thorns. I don't think Ive been successful, others say its pollen is quite promiscuous so may be a difference in what we have here in Australia vs elsewhere (also ...
by Plazbo
Sat Nov 09, 2019 7:53 pm
Forum: Rose Hybridizers Association Forum
Topic: Letting the bees do the work
Replies: 4
Views: 70

Re: Letting the bees do the work

There'd definitely be a significant factor in seed parent determining variability. I mean if the seed parent is from a wide cross you'd expect variability in offspring. I mean look at something like Calocarpa, a fertile result of a cross that typically results in sterile plants, while there may not ...
by Plazbo
Sat Nov 09, 2019 7:31 am
Forum: Rose Hybridizers Association Forum
Topic: Letting the bees do the work
Replies: 4
Views: 70

Re: Letting the bees do the work

I do a fair bit of this, I collect and sow every seed regardless of intentional cross or not. Knowing that a lot of seedlings will die for one reason or another (often lack of care in the extreme heat and drought conditions...sometimes I just don't water often enough), it's currently worth my time t...
by Plazbo
Sat Nov 02, 2019 1:49 am
Forum: Rose Hybridizers Association Forum
Topic: All A'Twitter x Yatkan
Replies: 24
Views: 484

Re: All A'Twitter x Yatkan

It's something that I'm doing myself. Even though the eventual plan is to be mostly diploid there's a lot of traits from higher ploidies that I'm hoping to move down to diploid which are often attached to once bloomers or older classes without juvenile bloom. Making triploids that are once blooming ...
by Plazbo
Fri Nov 01, 2019 3:24 am
Forum: Rose Hybridizers Association Forum
Topic: All A'Twitter x Yatkan
Replies: 24
Views: 484

Re: All A'Twitter x Yatkan

If you're in zone 5 that should make your work easier, because the once-blooming seedlings in the first generation of a species-modern cross should be able to have enough live wood to bloom. Then you cross the best of them with another rebloomer and select for juvenile bloom in that F2 generation. ...
by Plazbo
Thu Oct 31, 2019 5:56 pm
Forum: Rose Hybridizers Association Forum
Topic: Questions about seedlings traits
Replies: 18
Views: 374

Re: Questions about seedlings traits

The "secret" is probably moisture, and cooler temps. I don't disagree with Baby Faurux, its often one of the first to indicate i need to water more often., no drought tolerance to it. Blue for you seems straight up temperature related though, it crisps without much effort where most things are fine...
by Plazbo
Wed Oct 30, 2019 5:50 pm
Forum: Rose Hybridizers Association Forum
Topic: All A'Twitter x Yatkan
Replies: 24
Views: 484

Re: All A'Twitter x Yatkan

Also interesting that you used centifolia. Could you expound on why that was your choice, as I've read a lot about sterility issues, and apparently that isn't the case with the pollen you used. Any thoughts? Thats more a mechanical failure in centifolia, in most the majority of sexual parts are con...
by Plazbo
Sun Oct 27, 2019 6:03 pm
Forum: Rose Hybridizers Association Forum
Topic: Questions about seedlings traits
Replies: 18
Views: 374

Re: Questions about seedlings traits

Do we know if the fragrance in leaves is passed on through the mother or father? I read a little mentioned here on fragrance but either didn't read that, didn't understand it, or forgot. It depends on the source. Most of the more common sourves for apple scented foilage are closely related to R.rub...
by Plazbo
Sun Oct 13, 2019 11:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Wintoniensis
Replies: 0
Views: 180

Wintoniensis

Just wondering if anyone has used Wintoniensis, there's only two mentions on the forum so possibly not accessible to people or it just has an issue that I haven't stumbled on yet. No children listed so possibly a sign of some problem. It's known to set hips but nothing mentioned about seeds or ferti...
by Plazbo
Fri Oct 04, 2019 10:00 pm
Forum: Rose Hybridizers Association Forum
Topic: Rose replant disease?
Replies: 13
Views: 366

Re: Rose replant disease?

@Kim With the runts, I would assume that is a big factor but also not willing to rule out that something I'm doing (or environmental factors) contributes to that result. I mean I've bought a lot of species seed which in theory should be decent own root, but have had a lot die/not do well. Not the en...
by Plazbo
Fri Oct 04, 2019 4:34 am
Forum: Rose Hybridizers Association Forum
Topic: Rose replant disease?
Replies: 13
Views: 366

Re: Rose replant disease?

I reuse potting soil, pretty much always need to add new stuff into the mix, always need more volume than what is already there. I fertilzer (weak) every week though (hose attachment that mixes in fish emulsion, seaweed, worm casing, bacteria, etc during normal watering) so not overly concerned abou...
by Plazbo
Fri Sep 13, 2019 11:56 pm
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3431

Re: Use of Rosa blanda/woodsii in breeding

I'm hesitant to go down the rugosa pathway, mostly out of a prejudice born of iron chlorosis, poor blossom form, and delayed remontancy among rugosa seedlings. I know I should, but I don't know if I have the patience. In theory, the delayed remontancy could be bred out without straying too far, it'...
by Plazbo
Thu Sep 12, 2019 6:54 pm
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3431

Re: Use of Rosa blanda/woodsii in breeding

It was just something that stood out while i was looking due to various people saying they are the same. The difference may disappear as the plants get larger but at this roughly inch height theres an obvious foliage colour difference. If blanda is very opppsed to alkalinity it may be the main contr...
by Plazbo
Thu Sep 12, 2019 12:34 am
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3431

Re: Use of Rosa blanda/woodsii in breeding

Just a random observation from seedlings grown from Sheffield seeds. It's easy to distinguish which is which without seeing the label, woodsii seedlings have much bluer foliage where blanda are mid green. Blanda seedlings also seem more prone to dying....which may or may not explain why there doesn'...
by Plazbo
Sat Aug 31, 2019 7:06 pm
Forum: Rose Hybridizers Association Forum
Topic: Roses to consider for breeding?
Replies: 6
Views: 295

Re: Roses to consider for breeding?

It probably doesn't need saying but location and mileage may vary. Carefree Beauty frequently comes up in these sorts of things but is generally just gross for me in Australia. I know Warren (~700km/435miles inland from me) has said as much in the past and I believe has shovel pruned it and all seed...
by Plazbo
Wed Aug 28, 2019 6:54 pm
Forum: Rose Hybridizers Association Forum
Topic: Agnes as parent?
Replies: 7
Views: 291

Re: Agnes as parent?

Ive had floaters from rugosa alba germinate....but never had 100% floaters so mileage may vary.
by Plazbo
Tue Aug 13, 2019 3:09 am
Forum: Rose Hybridizers Association Forum
Topic: How to know how many plants I need for breeding?
Replies: 13
Views: 271

Re: How to know how many plants I need for breeding?

As mentioned by others its going to vary by goals, location, available space, cost, etc.

The other variation is some roses produce 25+ seed a hip while others are lucky to produce 4.
by Plazbo
Thu Aug 08, 2019 7:06 am
Forum: Rose Hybridizers Association Forum
Topic: Is this color prediction chart accurate (or useful)?
Replies: 9
Views: 372

Re: Is this color prediction chart accurate (or useful)?

I'd say the chart is somewhat useful if you look at the percentages over 20% as there's obviously some general trend there that's occurred over a bunch of different roses. You just have accept that unexpected results can and do happen. As the chart shows though, if you're looking to maximise your re...
by Plazbo
Sun Aug 04, 2019 11:34 pm
Forum: Rose Hybridizers Association Forum
Topic: Is this color prediction chart accurate (or useful)?
Replies: 9
Views: 372

Re: Is this color prediction chart accurate (or useful)?

Originally created by Steve McCulloch I believe. It was the results the creator researched. So there's some value in that but results are likely to vary due to using different cultivars. Would pay more attention to the higher numbers than the lower numbers as the trend of what to expect. I mean the ...