Variety - Hidden Valley A538

This page on Interpreting Varieties Pages provides information on the terms used below.


A538 is very precocious, and its good performance combined with moderately small trees size indicates that is has good potential for long term yield.

It is quite similar to A4 with a smaller kernel and smaller tree size.

Royalty Status Release Pending
Early Yield/Ha Very Precocious
Long Term Yield Good Potential
Kernel Recovery 43 - 46%
Whole Kernels 50 - 60%
Kernel Wt 2.7 - 3.2
First Grade 90 - 100%
Flower Season Late Season
Harvest Season Early to Mid
Tree Size Compact
Husk Spot Unknown
Sticktights Low
Ethrel Response Good
Abnormal Vertical (AVG)Appears Tolerant
Pollenisers Unknown


A538 variety seems to perform best in the cooler climate of Alstonville.

Observed Benefits

  • A538 was one of the most precocious selections at all sites of the RVT 3.

Observed Faults

The variety is in very early stages of adoption, no obvious faults have been observed at this stage.

  • The thin shell may be a lower barrier for some insect damage.
  • Its performance at RVT 3 site Wirra Willa, an AVG potential site, was poor.

Performance in Trials

In RVT Series 3 to year nine, A538 was ahead of the standards at Alstonville, DeCortez & Childers, it was not planted at Bundy Sugar.

Using accumulated Gross Income per Ha as a comparator, on average it was $5,100/Ha ahead of the standards by year nine of RVT 3, largely due to a very strong performance at Alstonville

Note the following table uses mean annual Gross Income/Ha/Yr as opposed to the accumulated value above.

Gross Income/Ha/Yr in RVT3
Mean of Years 4 to 9, $5/kg base price
HV A538Mean of 5
Alstonville $12,231 $9,922
B1 (De Cortez) $8,500 $7,908
B2 (Booyan) $10,144 $11,018
Childers (to yr 7) $15,586 $14,441
B4 (Wirra Willa) $8,271 $10,513

Gross Income vs Year

(Orange/Green change indicates positive cash flow)

Gross Income vs Year at Alstonville
Gross Income vs Year at Booyan
Gross Income vs Year at DeCortez

Harvest Patterns

(Yellow sections indicate hand strip)

Harvest Pattern at Alstonville 2017
Harvest Pattern at Booyan 2017
Harvest Pattern at DeCortez 2017

Our more detailed discussion of RVT Series 3 results is available here.

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Some data and images courtesy of DAFF Qld. Data is compiled to best of our knowledge at the time of publication but errors are possible. Data presented is not a guarantee of performance in future orchards; real world performance is highly dependent on the combination of genetics, environment and management. Interpretation of the data presented and resulting decisions are entirely the grower's responsiblity.