Citrus Growers Forum

Darkman · Posted: Wed 08 Dec, 2010 12:03 am

Ivica

Some good reading there. I wish they would do a study now as that one was from 1963 but still much of it is timeless.

The more I research this the more I'm sold on a Micro Sprinkler system for the trunk and the scaffolding branches.

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Charles in Pensacola

Life - Some assembly required, As is no warranty, Batteries not included, Instructions shipped separately and are frequently wrong!

Kentucky Bourbon - It may not solve the problem but it helps to make it tolerable!

Darkman · Posted: Wed 08 Dec, 2010 2:38 am

I have an update. They thought that the rootstock was Swingle but they now say it is Kuharske. Millet said that Carrizzo has a good freeze tolerance. Unless I'm wrong Kuharske is an improved Carizzo.

Does anyone have any knowledge anout Kuharske?

I've read the IFAS publication on it and it sidesteps the cold hardiness of it not being specific at all.

_________________
Charles in Pensacola

Life - Some assembly required, As is no warranty, Batteries not included, Instructions shipped separately and are frequently wrong!

Kentucky Bourbon - It may not solve the problem but it helps to make it tolerable!

Millet · Posted: Wed 08 Dec, 2010 3:52 am

Kuharske is also a Citrange. Therefore, Kuharske is also good for freezes and drought, and poor in high pH soils. As far as I know, the facts are still out on clay soils. But as you might expect, being a Citrange it produces a large tree with high yields and fruits in the large to intermittent size. However, large to extra large fruit can be easily obtained by thinning to one fruit for every 5 leaves. - Millet (768-)

Darkman · Posted: Wed 08 Dec, 2010 11:43 am

Millet wrote:

Kuharske is also a Citrange. Therefore, Kuharske is also good for freezes and drought, and poor in high pH soils. As far as I know, the facts are still out on clay soils. But as you might expect, being a Citrange it produces a large tree with high yields and fruits in the large to intermittent size. However, large to extra large fruit can be easily obtained by thinning to one fruit for every 5 leaves. - Millet (768-)

My soil is almost pure sand with very little organic material for the first five foot of depth. No clay. I'll have irrigation so that is not a concern but it is nice to know that if I didn't it is drought tolerant. Growth characteristics on this cultivar, Xie Shan, being a very early crop is a plus to have large vigorous trees. That will allow the rest of the trees to pick up the slack later in the season.

It all comes back to this. What exactly does "good for freezes" mean? Will it take 26 for several hours with no ill effects, 24, 22 or 20?

Does anyone know where this rootstock has been trialed?

There is supposed to be a Dr. Hochmuth maybe with U of FL that trialed the Xie Shan in the Tallahasee FL area with this rootstock. If that is true then I should be good as that area consistently is 5 - 10 degrees cooler than my area. Anyone know of him. I received the name verbally and I'm guessing on the spelling of Hochmuth. Anyone know of him?

Thanks,

_________________
Charles in Pensacola

Life - Some assembly required, As is no warranty, Batteries not included, Instructions shipped separately and are frequently wrong!

Kentucky Bourbon - It may not solve the problem but it helps to make it tolerable!