Tropical Fruit Forum - International Tropical Fruit Growers

Citrus => Cold Hardy Citrus => Topic started by: kumin on December 13, 2019, 03:47:19 PM

Title: TaiTri vs 5* deciduousness and hardiness
Post by: kumin on December 13, 2019, 03:47:19 PM
Is anyone familiar with both TiaTri citrandarin and 5* citrumelo in respect to their winter hardiness? The first indications I see are that TaiTri shows a bit of deciduousness while I see none in the 5* at this point.  Some of my segentrages show appreciable deciduous behavior, others don't. TaiTri also made less late growth. Which has shown better cold resistance?
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: Ilya11 on December 14, 2019, 04:34:15 AM
I do not have Taitri, but 5star was able to flower after the winters when he lost his leaves due to the wind and cold.
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: kumin on December 16, 2019, 03:47:14 PM
By spring I should have some answers in regards to the cold hardiness of both 5* and TaiTri. Shorter winters would be desirable!
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: poncirsguy on April 12, 2020, 09:06:32 PM
By spring I should have some answers in regards to the cold hardiness of both 5* and TaiTri. Shorter winters would be desirable!
I understand the need for shorter winters.  The long cold desiccates the tree when the roots are asleep.  How did they fair over this winter and last
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: kumin on April 12, 2020, 10:19:52 PM
Having just come through one of the mildest winters, there was very little freeze back. Even seedlings remaining outdoors in the initial test plot are only moderately damaged. The plants within the cold frame show no damage except for 5 * citrumelo late season stem tip growth. That damage occurred in early winter.

Overall TaiTri appears to be a bit hardier than 5* citrumelo. Several of the citrange selections showed no damage whatsoever. 3 of the hardiest citranges developed purple leaves during the winter as a cold response. This coloration is fading with warmer temperatures. I hope to achieve good growth this summer, allowing the seedlings to get closer to fruiting maturity.
I propagated a number of the more promising citranges by budding/grafting to increase the number of fruiting plants, when they eventually reach maturity..
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: SoCal2warm on April 14, 2020, 12:15:29 AM
I have three TaiTri seedlings outside in containers, and none of the seedlings lost their leaves this winter. In fact, the coloration of the leaves still look fairly healthy.
This is in zone 8, the Pacific Northwest.

I also have a Dustan citrumelo planted outside which did not lose its leaves this year, and still looks quite good.
Title: Re: TaiTri vs 5* deciduousness and hardiness
Post by: kumin on July 07, 2020, 06:54:29 AM
This is a recent 5* citrumelo bud and graft on Poncirus rootstock. The upper graft is a bark flap graft, the lower one is an inverted T-Bud. Both are growing well in the present hot weather. Both photos are of the same plant.

Shortly after bud-break.

(https://i.postimg.cc/3y5nydhX/IMG-20200704-074057.jpg) (https://postimg.cc/3y5nydhX)

The most recent photo.
(https://i.postimg.cc/06TZwrqG/IMG-20200706-060611.jpg) (https://postimg.cc/06TZwrqG)