Plant Stem Strength Meter

The GOYOJO is a brand name product that originates from Mainland China. It has no certification. The model numbers are YYD-IA and YYD-IB, which are both electronic devices.

The YYD-IA has a maximum load of 50N, while the YYD-IB can handle up to 500N. Both models have an accuracy of ±0.5% and the unit of measurement is N and KG.

This instrument is designed to test the culm-strength of plants, particularly the stem intensity of sorghum and maize. This is a crucial factor in determining the lodging-resistance ability of these crops. Lodging has long been a significant challenge in the mechanized harvesting of sorghum and maize, leading to substantial crop waste. Furthermore, corn lodging can limit yield due to inadequate illumination. By using this instrument, agricultural genetic breeding can be improved to cultivate crops with higher stem intensity.

The YYD-1A model has the following specifications: - Max load: 50N - Resolution: 0.1N - Culm width range: 0-100mm - Accuracy: ±0.5% - Unit: N, KG - Output Interface: RS232 - Power: Chargeable battery, Charger (charge voltage: 100V-240V) - Meter size: 295x130x36mm - Net weight: 600g

The YYD-IB model has the following specifications: - Stem bending performance measurement area: 0.5cm² - Stem compressive strength measurement area: 1cm² - Stem structure intensity measurement: 1mm² - Max load: 500N (N, kg, it can be transformed automatically) - Resolution: 0.01N - Precision: ±0.5% - Power: Chargeable: 220V/AC - Battery working time: 6-8 hours - Stability: drift: 0.2uV/°C (0-60°C); zero drift: ≤0.1%/8 hours/FS - Calibration range: full-scale calibration - Working temperature: 0-60°C - Working Humidity: ≤80% - Allowed overload: 150% - Off-Time setting: 10-90 minutes - Power: AA nickel cyanide battery groups; 220V AC charging for 4-6HR

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