Why Use Multiplex Map?
Multiplex Map is useful to support the following decisions:
- How to refine harvest zone;
- How to highlight differences within your vineyard and select fruit with a similar ripening trajectory.
What Is Multiplex Map?
With Multiplex Map you can monitor spatial distribution in total anthocyanins from individual clusters. Measurements for Multiplex Map are usually taken on one specific date, before or near the peak of color accumulation. Those recurring measurements help to better identify variations in color accumulation speed at key stages.
Figure 1: Timeline showing fruit development period; Multiplex measurement are made during the “ measuring period” in red
Multiplex Map reflects the spatial distribution of total anthocyanin levels from individual clusters which are tracked by GPS. Once collected, data is analyzed to create a map. After analysis of measurement spatial distribution, maps with different granularities are generated and available on Fruition Analytics. There are two kinds of Multiplex map displayed on Fruition Analytics.
#1) Rainbow Map
Figure 2: A color scale ranging from red to blue describes the range of total anthocyanins from highest to lowest levels. This map gives a high-resolution view of block spatial variability during ripening
The rainbow map is used to display nuances in color accumulation across the vineyard. The rainbow map is also useful in highlighting areas where the largest differences in the maturation trajectory are expected to be found.
Application: close to harvest, winemakers can use the rainbow map to pinpoint areas where tasting fruit is likely to display the largest differences. With Multiplex technology pre-harvest vineyard scouting can be made more efficient.
#2) Two Color Map
Figure 3: Two color scale highlight areas showing on average high vs. low total anthocyanins area.
A two-color map is used to display areas where a similar ripening trajectory is observed (in terms of total anthocyanin accumulation).
Considering overall fruit and wine composition are more uniform when coming from a more homogenous vineyard area, the two color map is useful in highlighting areas where small differences in terms of maturation trajectory are expected to be found. Approaching harvest winemakers can use the two colors map to select large areas where fruit chemical composition is on average more uniform.
Why Use the Rainbow Map?
- Support assessment of a block’s “readiness for picking” close to harvest time. The Rainbow Map helps to refine the location of pre-harvest samples as well as the location where it might be pertinent to taste fruits and chew the skin.
- Better understand the effect of the vintage and vineyard practices at boosting the spatial differences between the most extreme areas of vineyard in total anthocyanin levels.
Why Use Two Color Map?
- Support a winemaker’s ability to maximize block potential by selectively picking areas with uniform total anthocyanin levels.
- Create more contrast between wine lots and improve blending options.
Beyond Harvest Decisions
Based on Multiplex Maps, winegrowers have the plant-based knowledge to improve decisions on:
- Canopy management: directly impacts microclimate which in turn affects anthocyanins.
- Fertilization and irrigation: nitrogen and water uptake impacts total anthocyanins.
Check out this article for a detailed example on how to use Multiplex two color Map.
At Fruition Sciences, we acknowledge uniqueness, natural abilities and potential growth for plants and people. While respecting tradition, we provide winemakers with a highly integrated, terroir and vintage specific, data driven web application.
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