Shoot Density Per Meter Row

Normalize observed shoot inventories by actual row versus multiple-curtain exposure, retaining different denominators; no shoot density target or canopy quality inference.

Description

A row with multiple curtains has more canopy length than its ground-row length.

A row with multiple curtains has more canopy length than its ground-row length. Shoot density therefore depends on the exposure denominator.

Normalize observed shoot inventories by actual row versus multiple-curtain exposure, retaining different denominators; no shoot density target or canopy quality inference.

When to use Shoot Density Per Meter Row

Use this tool to normalize observed shoot inventories by actual row versus multiple-curtain exposure, retaining different denominators; no shoot density target or canopy quality inference.

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.

How to use Shoot Density Per Meter Row and understand its results

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
Enter observedShootCounts, sampledRowLengthsM, curtainCountsPerSample using the field table and calculation rules, then run the tool.
Read shootDensitiesPerMeterRow, shootDensitiesPerMeterCurtain, pooledShootDensityPerMeterCurtain. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
observedShootCounts	Observed shoot counts	list of number	Required
sampledRowLengthsM	Sampled row lengths m	list of number	Required
curtainCountsPerSample	Curtain counts per sample	list of number	Required

Align nonnegative integer shoot counts, positive row lengths and positive integer curtain counts. Return local row and curtain densities and pooled shoots divided by total curtain meters.^[1]

Paired lists must be nonempty and have equal lengths.

curtain density = shoots/(row length × curtain count)

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
shootDensitiesPerMeterRow	Shoot densities per meter row	list of number
shootDensitiesPerMeterCurtain	Shoot densities per meter curtain	list of number
pooledShootDensityPerMeterCurtain	Pooled shoot density per meter curtain	number

json

{
  "input": {
    "observedShootCounts": [
      10,
      30
    ],
    "sampledRowLengthsM": [
      1,
      3
    ],
    "curtainCountsPerSample": [
      1,
      2
    ]
  },
  "output": {
    "shootDensitiesPerMeterRow": [
      10,
      10
    ],
    "shootDensitiesPerMeterCurtain": [
      10,
      5
    ],
    "pooledShootDensityPerMeterCurtain": 5.714285714285714
  }
}

Limitations and assumptions

No target density or canopy-quality score is inferred.

Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Smart Dyson Up Down Shoot Count: Keep actual Smart-Dyson upward/downward inventory, vine representation and curtain-length exposure distinct; no required balance, bud fruitfulness or suitability of canopy training inferred. For a complementary task, use Canopy Width Vigour Classification Tool: Audit physical canopy widths by represented row length against caller local/pooled width bands; width alone does not establish physiological vigor or treatment need.

References

Shoot Density Per Meter Row — tool.io

Similar or alternative tools

Smart Dyson Up Down Shoot Count
Keep actual Smart-Dyson upward/downward inventory, vine representation and curtain-length exposure distinct; no required balance, bud fruitfulness or suitability of canopy training inferred.
Canopy Width Vigour Classification Tool
Audit physical canopy widths by represented row length against caller local/pooled width bands; width alone does not establish physiological vigor or treatment need.