Grafting Success Rate Calculator

Work out grafting success rate instantly with clear inputs, formula shown and shareable results.

About Grafting Success Rate Calculator

Take rate measures unions that callused successfully; overall success also counts nursery losses between union and dispatch. Dividing the total cost of all attempts by the plants actually dispatched gives the true unit cost, which rises steeply as success falls.

Formulas

Graft success

Take rate % = successful unions x 100 / grafts made; overall % = plants dispatched x 100 / grafts made

Unit cost

Cost per saleable plant = grafts made x cost per attempt / plants dispatched

Worked example

With the default values below, Grafting Success Rate Calculator returns Graft Take Rate of 84.00%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Grafts Mademinimum 1: 500
Successful Unionsminimum 0: 420
Plants Surviving To Dispatchminimum 0: 395
Cost Per Graft Attemptminimum 0: 18

Results

Graft Take Rate: 84.00%
Overall Success To Dispatch: 79.00%
Cost Per Saleable Plant: $22.78
Plants Lost: 105

Step by step

1Values used
2Graft success
3Unit cost
4Graft Take Rate= 84.00
5Overall Success To Dispatch= 79.00
6Cost Per Saleable Plant= 22.78
7Plants Lost= 105

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

What take rate should a nursery expect?

80-95% for well-matched, well-timed grafts on mango, citrus and apple by a skilled worker. Below 70% points to scion condition, timing, sanitation or a cambial mismatch.

What most affects success?

Cambial contact and moisture retention at the union, physiological stage of rootstock and scion, sharp sterile tools, and holding temperature and humidity during callusing.