Author Topic: F2 citrange winter hardiness trial  (Read 42943 times)

kumin

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Re: F2 citrange winter hardiness trial
« Reply #400 on: January 06, 2022, 05:07:20 PM »
This week's outdoor photos showing responses to cold weather to this point Jan 06, 2022


Citrange 001: One of the hardiest trees, initially evergreen, becomes deciduous with age.


Another Citrange 001


Citrange 006 Deciduous and quite hardy.


Another 006


Another 006


Additional 006


010 Among the hardiest


011 tetraploid and very hardy


Another 011


024 Evergreen when young.


Another 024


Additional 024


028: Failure: all the 028 plants are in poor condition

Another 028: failure


054 Rather good condition. Some bark splitting.


067: most Citrus-like in this test, high grafted on Poncirus, showing a bit of stress. Second year graft.


5* Citrumelo: looking okay at this point. High grafted on Poncirus. Second year graft.


A-026 acceptable hardiness, this selection is the first of the Citranges to flower and fruit.


D Citrange: hardiness is variable, late growth is cold sensitive, mature growth is quite hardy.


2 Survivors in the original test plot. Unnamed at present, one is completely deciduous, one is evergreen.


Outdoor TaiTri high grafted on Poncirus. Second year graft.
« Last Edit: January 08, 2022, 09:00:59 PM by kumin »

hardyvermont

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Re: F2 citrange winter hardiness trial
« Reply #401 on: January 08, 2022, 11:58:07 AM »
This is fascinating, how cold has it gotten so far?  Looking forward to seeing how well they make it though the rest of the winter. 


kumin

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Re: F2 citrange winter hardiness trial
« Reply #402 on: January 08, 2022, 12:58:16 PM »
The lowest temperature to date was 9F (-12.7C) this morning. Snow cover often leads to lower temperatures, as we got our first snow yesterday. The previous lows were 17F (-8.3C). Being located in a semi rural area, official low temperature forecasts are unreliable on windless mornings.
We will be entering the time of year that's most challenging to overwintering plants. Frozen soil, increasing windiness, as well as increased sunshine will cause more damage than the weather has done up to this point.
« Last Edit: January 08, 2022, 09:02:31 PM by kumin »

 

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