Turner Hass is a large-fruited sport of Hass avocado that produces 10% heavier crops than regular Hass. It has richer flavor than Hass but slightly trails in dry matter accumulation. The fruit is approximately 17% larger than Hass with higher flesh recovery. About 1% of Turner Hass fruit has natural chimera markings but is marketed as regular Hass. Two new rootstock varieties, SHSR-02 and SHSR-04, show potential for high production and disease resistance across different environments. SHSR-02 has good uniformity and resistance to Phytophthora root rot. SHSR-04 has significantly better health than other rootstocks and is easy to clone.
1 of 12
More Related Content
Tony Whiley
1. Avocado IP Management
Varieties and Rootstocks
Tony Whiley
Sunshine Horticultural Services
Nambour QLD
2. Turner Hass
Large fruiting Hass sport
Application accepted by PBR 26/08/2002
IP rights expire 2031
IP owners are John and Jay Dorrian
500 trees minimum sized planting
3% royalty on the wholesale price of fruit
3. Turner Hass
Grower data indicates that this variety crops 10% heavier
than Hass - Childers 2002.
4. Turner Hass
Dry matter accumulation
trails Hass by about 1%
Fruit develops richer
nuttier flavour than Hass
5. Turner Hass
Fruit is approximately
17% larger than Hass
Fruit is neckier than Hass
but within industry range
Flesh recovery greater than
Hass: 70.8 vs 66.9%
6. Turner Hass
Approx. 1% of fruit on each tree
has natural Chimera marking
Fruit turn brown/black when
mature ¨C look the same as Hass
Fruit is marketed as Hass ¨C no
promotion required
7. Turner Hass
Unknowns
¨C post harvest storage life
- productivity across all environments
Enquires to Sunshine Horticultural Services
8. SHSR - 02
Guatemalan race
Seedling rootstock
In top range of production across all sites
Tree is sturdy with less vigour than VelvickD
Good uniformity in seedling population
9. SHSR - 02
Good resistance to PRR
SHSR-02 ¨C Velvick (VA) ¨C Reed ¨C SHSR-02
10. SHSR - 02
Commercialisation
Mother trees have been propagated for
future seed source
Top five seedlings will be cloned for
further testing
Decision on PBR to be made
11. SHSR - 04
Guatemalan/Mexican hybrid
Easy to clone
Has significantly better health rating than all
other rootstocks including international
standards with resistance growing in high
pressure disease site
12. SHSR - 04
12-month-old SHSR-04 grafted to Hass
Commercialisation will proceed with PBR application 2009