Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - kumin

Pages: [1] 2 3 ... 33
1
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 29, 2024, 10:57:17 AM »
1279 foliage shows a considerable percentage of monofoliate leaves.

Bishop fruits are larger than 1279 fruits. A few display a bit of a nipple at the blossom end.


1279 fruits are fragrant during picking. The fragrance is clearly a mandarin aroma. There is a higher percentage of fruits with the blossom end nipples.


2
Cold Hardy Citrus / Re: New Hardy Citrus Varieties 2024
« on: November 27, 2024, 04:14:12 PM »
Excellent, I expect the upcoming decades to be exciting for Cold Hardy Citrus enthusiasts.

3
Citrus General Discussion / Re: cold-stratification
« on: November 27, 2024, 02:46:29 AM »
Quote from: Newbgrower on November 26, 2024, 03:29:13 AM
Quote from: kumin on November 11, 2024, 03:49:52 PM
I've sown Poncirus seed with and without stratification. There may be a slight advantage to accelerate the initial germination process, but I haven't seen great advantages. However, under ideal temperatures, I've noticed some root development under stratification, as well as seed coat breakdown. Seed coat removal may minimize this effect.

I harvested some wild poncirus in october, got like 50 seeds, so far not a single one has germinated. I tried different methods, wet paper = green coloring. Tried with and without shell.
Right now i am trying the cold stratification method in wet coco coir. I also tried regular sowing last year without success.

Any tips on germinating poncirus?
Several observations: unbuffered coconut coir may contain a high salt content and has killed a batch of seedlings for me. The salt can't be rinsed out and needs to be buffered.
The optimal germination temperature for Poncirus is 25°C (77°F). The presence of bad smells is indicative of decay. At optimum temperature germination can occur beginning at a bit over a week.
The seeds need adequate consistent moisture during germination as well as oxygen in the presence of suitable temperatures. The soil should never remain saturated, nor excessively dry.
If the seeds are exposed to lethal conditions no amount of subsequent ideal conditions will rescue the dead seeds.

4
Citrus General Discussion / Re: Indoor Overwintering
« on: November 25, 2024, 05:21:36 PM »
Yes, warmer air temperature requires a higher light level. Total darkness may also promote fungal disease.

5
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 20, 2024, 12:05:28 PM »

 2 year old Bishop tree in SE Pennsylvania. This tree has survived 2 winters outdoors without protection. The tree does experience considerably die back each year. A severe winter may overwhelm it. The lowest Winter temperature to this point has 2°F.

2 rows of Bishop seedlings.

6
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 18, 2024, 11:35:16 AM »
Two outdoor 5* fruits.


7
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 18, 2024, 11:32:47 AM »

 One of the 5* trees has larger fruits than the rest of the trees. It may have better nutrition due to being at the end of the row. Or, perhaps better genetics. ;D

8
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 16, 2024, 08:36:01 PM »
The seed parent is Meyer lemon, which is a possible hybrid of mandarin x lemon parentage. The pollen parent is an F˛ Ruby Blood orange x Poncirus hybrid. Therefore, it's a complex hybrid involving Poncirus, blood orange, likely mandarin and an additional acid parent.

9
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 16, 2024, 02:29:43 PM »

  One of the 5* trees has larger fruits than the rest of the trees. It may have better nutrition due to being at the end of the row. Or, perhaps better genetics.

10
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 16, 2024, 01:05:00 PM »
Early segregation of Meyer lemon X Conestoga 026 seedlings. I plan on rescuing 33% of the hardiest seedlings in hopes that a few may produce zygotic seedlings. Several are already exhibiting greater cold tolerance than their siblings. Due to being 50% Meyer lemon, there's no expectation of Sub-Zero hardiness, but a low percentage of their progeny may achieve a better combination of cold hardiness and palatability.












11
Cold Hardy Citrus / Re: Ponciruslike fruit comparison
« on: November 13, 2024, 05:14:14 PM »
Quote from: bussone on November 13, 2024, 10:31:40 AM
Quote from: BorisR on November 13, 2024, 01:21:40 AM
I'm wondering if all adult healthy poncirus trees have a repeat bloom in summer? Or are there forms that definitely do not have such a characteristic? Does anyone have their own observations on this? For breeding for winter hardiness, this is rather a negative characteristic.

I have not observed the poncirus trees in my area to repeat bloom.
I find second and third blooms to be premature blooming of flower buds prepared for the following Spring's bloom.
In my experience it's often triggered by a dry period proceeding heavy rainfall. Diminished petal size is common as noted. Neither the second, nor the third fruit sets attain full size, however, the second set often produces viable seeds, unlike the third set, which freeze and eventually abscise from the branches.

12
Citrus General Discussion / Re: cold-stratification
« on: November 11, 2024, 03:49:52 PM »
I've sown Poncirus seed with and without stratification. There may be a slight advantage to accelerate the initial germination process, but I haven't seen great advantages. However, under ideal temperatures, I've noticed some root development under stratification, as well as seed coat breakdown. Seed coat removal may minimize this effect.

13
Cold Hardy Citrus / Re: How to store seeds
« on: November 08, 2024, 01:25:35 PM »
Walt, one obvious doesn't want to use the oily Bag Balm itself, it's just that it's active ingredient is the same as the fungicide used by commercial seed companies.

14
Cold Hardy Citrus / Re: How to store seeds
« on: November 07, 2024, 06:38:43 PM »
I've had success with thoroughly cleaning the seeds with an admixture of chlorine (Sodium hypochlorite) at 5 times the concentration used to sanitize drinking water. Gently scrubbing with a scouring pad until all gelatinous tissue is removed is important to prevent mold. After the seeds are completely surface cleaned, I then surface dry them on a bakery tray until they pour freely without any seeds clinging to each other. It's important that the seed coats are dry, but that the actual seed interiors aren't descicated. Over drying the seeds is lethal.
At this point the seeds are scooped into Ziplock type bags, with any excess air being squeezed out while sealing the bags. The seeds are then stored at near 32°F until being sown. Stratification isn't harmful, but also not necessary.
It's a good practice to inspect the bags for mold on a monthly basis. Minor mold be stopped by an appropriate fungicide application.
Commercial seed treatment makes use of 8-hydroxyquinoline fungicide, which is very effective for mold prevention, but may not be readily available, nor suitable for hobbyist use. It's used in the winemaking industry to eliminate wild yeasts, and in the dairy industry in a product called Bag Balm. Once again, it may not be advisable for hobbyist use.


15
Cold Hardy Citrus / Re: Another precocious poncirus
« on: November 06, 2024, 04:11:52 PM »
In my experience, when the seeds begin to harden a percentage of them will germinate. I've sown seeds that were becoming viable and varying percentages germinated. I found that marginally mature seeds don't store well and by sowing them directly after extraction the odds improved.
Excessively wet soil media contributed to failure on several occasions.

16
Citrus General Discussion / Re: “Starburst” Pommelo, what variety is it ?
« on: November 06, 2024, 11:26:19 AM »
Starburst seedlings in preparation for potting for Winter protection.


17
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 06, 2024, 11:04:41 AM »
Sorry, "9 fruits" in English. This tree fruits in clusters of fruit. I prepared the caption for a German speaking friend.

18
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 06, 2024, 10:47:19 AM »
Several photos of fruits as they ripen.










19
Citrus General Discussion / Re: Cut off sunburned trunk or let it grow?
« on: November 04, 2024, 03:10:17 PM »
I'd leave it as is temporarily. When a vigorous shoot emerges below the damaged area, but above the graft union I'd allow it to gradually overtake the damaged branch. When the replacement is sufficiently mature and lignified, the damaged section can be removed.

20
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 03, 2024, 11:43:24 AM »
Not a pumpkin, but it's definitely ribbed.

21
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 03, 2024, 07:52:15 AM »
Quote from: BorisR on November 03, 2024, 07:42:30 AM
Wow, that's great! Conestoga 058 is something incredible!
My hope is that having Ruby blood orange ancestry, 058 may exhibit fruit coloration under cool Autumn nights. Unfortunately, this selection hasn't bloomed to this point.

Photo of Mini Conestoga

22
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: November 03, 2024, 07:18:48 AM »
Recent photos of a Dragon Lime fruit, Meyer lemon fruits containing hybrid seeds of several crosses and Autumn coloration of Conestoga 058 foliage. This is the most brilliant foliage color of my plants.






23
Cold Hardy Citrus / Re: A non bitter larger Poncirus?
« on: October 28, 2024, 03:47:45 PM »
The sibling to the better tasting specimen clearly appears to be a Poncirus/Citrus hybrid. Being siblings, both trees should contain a mixture of Citrus and Poncirus of undetermined proportions. It's a very interesting find and may be useful for further cold hardy breeding potential.
The fruit also show good coloration.

Congratulations on your discovery.

24
Citrus General Discussion / Potting Starburst and Cocktail seedlings in preparation for Winter.
« on: October 24, 2024, 02:13:15 PM »

A number of field grown Starburst and Cocktail seedlings are being potted in preparation for Winter. Transplantation may be a considerable shock. These seeds were sown indoors in Winter 2023/2024..








25
Cold Hardy Citrus / Re: A non bitter larger Poncirus?
« on: October 24, 2024, 08:53:24 AM »
Quote from: Skandiberg on October 24, 2024, 07:52:38 AM
Thank you for the inputs, guys.

Kumin,
The fruit of your 026 pictures is very similar. But the juice of yours is paler. I guess the very pulpy juice of this local PT is the result of the very hot and dry summer we had this year so it may not be a standard trait. Maybe next year I will know better.

Jibro,
Those two are also quite close. I have no idea what this local plant is. I think its fruit is pretty good for a pure Poncirus, but if it's a hybrid, well, that should be a higher standard. I wouldn't like to eat even half a fruit, that's for sure. After my second review last week, when I consumed a little more of it than the first time, I felt a bit sick. But apart from that, I found nothing in this fruit that would urge me to eat it. Its juice is quite agreeable though, especially for a Poncirus, if that's what it is.
I should have been clearer in the description, the white ramekin has the actual juice, the glass container has the diluted beverage at 20 percent juice content.

Pages: [1] 2 3 ... 33
SMF spam blocked by CleanTalk