How fruit growers can benefit from using dendrometers on the job

How fruit growers can benefit from using dendrometers on the job
How KuNa Fish makes fish processing and packaging a piece of cake
3 Reasons why you need a power failure detector at your construction site
Why you need a freezer power outage alarm in an industrial fridge or cold room
What is the difference between ultrasonic and electromagnetic flow meters?
Planning your onion storage facility: 3 things to consider
How Bert gets the best deal for his onions by using a smart storage system
When do you need a titanium level sensor?
Unlock the Power of Weather Data with Weather Station API
4 Things to look for in a temperature sensor with API
Choosing the right tool for measuring relative humidity in concrete structures
3 reasons why storing records needs remote monitoring
3 reasons why you should monitor your roof garden
The importance of lux in offices: 500 lux
Protecting fruit tree blossoms from freezing with the aid of frost detection
Comparing the Watermark sensor to the WaterScout SM100
Pseudomonas syringae and frost damage in fruit trees
Understanding the difference between Crodeon and other remote monitoring systems
Preventing frost damage in a cactus greenhouse
Monitoring heat treatment in cargo containers
4 fantastic ways to monitor your hydro garden or vertical farm
Making blueberry farming more sustainable: Reporter and the water balance model
Measuring lux in chicken pens, pigsties and other stables
PAR & plants, is it the right light sensor for you?
Temperature registration for HACCP
Poultry monitoring and alarm
An easy and reliable weather station
Easy online dewatering
Livestock heat and suffocation alarm
Cold room monitoring
Smart watering system using remote irrigation monitoring
Storm & scaffolding: use a weather station to your advantage
Using a weather station on your construction site
Irrigation control with remote monitoring
Professionally farming mealworms: Measuring CO2, temperature and humidity
Remote Monitoring IoT
Real-time frost detection
Save money on office heating with smart technology
Sustainable water usage: using wireless sensor technology to combat drought and register water consumption
10 things to consider when buying a professional weather station
How to tackle the 7 principles of HACCP in restaurants and food companies with simple technology
Wind tracking and monitoring with multiple sensors
The effect of wind on measuring particulate matter
Precision test for the Sensirion SHT35 humidity sensor
Measuring temperature and pressure in real-time
Water level sensor to measure the water level in a container or well
How to measure leaf wetness in combination with relative air humidity
How to measure Dew Point and Wet Bulb temperature
How to make IoT truly accessible to everyone
Installing a weather station on caravans, holiday homes or vacation houses
How the Internet of Things will disrupt the insurance sector

Crodeon is glad to announce that Reporter is now compatible with the dendrometer sensor line-up of Ecomatik (DE). This enables many new possibilities for monitoring the growth and watering status of several different fruits and trees. Whether you’re looking to monitor apple, plum, pear or cherry tree growth, Reporter will help you measure and log the data.

In this post we will dive a bit deeper into some of the concrete advantages that growers will experience when making use of dendrometers on the job.

Monitoring growth progress

By installing a dendrometer as a grower you can keep track of the growth of the trunk over the years. In graph (A) below you can see a stem growth curve from almost three growing seasons increasing from 2000 µm to over 7000 µm. We can identify stem diameter growth, the annual growth rate increment and freezing periods with strong stem shrinkage. These are all important parameters helping you to track healthiness and vigour of your plants.

stem growth curve measured by dendrometer

When zooming in on the cherry tree growth of one month in graph (B), we can see how the trunk behaves on a daily basis. We can clearly identify the day / night cycle and how these are affected by dry periods and rainfalls. The amplitude between daily shrinking and nightly swelling of the stem corresponds to the extent to which the plant has to consume its internal water storage pools to buffer high daily transpiration demand and its ability to replenish these reserves during the night.

Making sure your fruit grows tasty

When we measure the diameter of the trunk through the dendrometer in combination with soil moisture, some interesting effects can be noted. The graph below shows the diurnal (daily) behaviour of the trunk over a period of one month. We identify four different conditions of soil water availability during this month indicated in green (well watered, luxury), yellow (mild water shortage), red (water shortage) and dark red (drought).

During the days marked in green, this tree got plenty of water, so it was able to supply daily transpiration almost completely from instantaneous water uptake and the diurnal amplitude is small. During the week marked in yellow, the tree was still able to take up enough water during nighttime to compensate for daily transpiration losses, except that transpiration was fed to a larger extent from the internal water resources (larger amplitude).

diameter amplitude in correlation to soil moisture

During the weeks marked in red and dark red, there was more transpiration during the day than water uptake at night. We clearly notice a shrinking trunk in the data. Unfortunately, this also results in a lower yield for this tree, even though the uptake and trunk diameter are restored back to healthy levels on October 7th.

Now here comes the best part. Whereas in the early expansion phase of fruit development we would like to remain in the green area and avoid limitations of rapid fruit growth, it is the occurrence of “yellow” periods with high uptake and high transpiration that make fruit carrying plants perform at their best in later phases of fruit ripening. It’s this kind of mild water shortage in such periods, where higher concentration of compounds are being produced that give fruits a flavourful taste. Utilising the dendrometer helps you track harvest time and understand, for example, cherry tree growth.

This data and insights give growers valuable tools to manage and optimize water use, yield and fruit quality. No more watery tasting fruits like those low-quality greenhouse tomatoes.

Knowing when it’s time to harvest

One final example that we will cover in this blogpost is about cherries and cherry tree growth, but it’s also relevant for many other pome fruits. All fruits stop growing at a certain point, but fruits such as cherries, will clearly even shrink when they are softening due to ripeness.

cherry ripening process measured

Using a dendrometer gives a lot of valuable insight. As a grower, when you see the growth curve is flattening, you can anticipate that you will soon be harvesting and you can learn about the ideal timing to do so.

Combining dendrometers with other sensors

As always, these measurements can be combined with any other sensor in the Crodeon shop. Reporter transmits the data wirelessly to the Crodeon Dashboard, where you can view it using any device or process it using our APIs or Microsoft Excel. Reporter makes the power of data accessible to companies of all sizes, even the smallest fruit grower.

Back to blog

Any questions?

Call us at +32474097705 Or use the contact form

1 of 4
  • Live online demo

    Sign up for a free account on the Crodeon Dashboard a watch a real live working demo.

    Watch the demo 
  • Talk to sales

    Schedule an appointment with Jonathan, our Sales Manager, for more information about this solution.

    Schedule a call 
  • Contact us

    For partnerships, distribution, or any other question, don't hesistate to contact us!

    Contact us