7 Key Features of Harvesting Durum Wheat

Durum wheat varieties are types of wheat primarily used for producing pasta, semolina, and specialty bread. They are distinguished by their high protein and gluten content, which provide dough with elasticity and firmness. These varieties are mainly grown in regions with dry climates, such as Southern Europe, North America, and certain parts of Ukraine.

Key characteristics of durum wheat:

– Higher protein content (13-15% or more),
– High gluten quality,
– Yellowish grain color due to carotenoid content.

Durum wheat is valued for its health benefits, as products made from it have a lower glycemic index compared to those made from soft wheat.

Harvesting durum wheat has several important features influenced by grain characteristics and quality requirements.

7 Key Features of Harvesting Durum Wheat:

1️⃣ Harvesting takes place at full maturity (grain moisture of 14-15%). It is crucial not to delay harvesting, as overripe grain may lose its quality characteristics—such as a reduction in protein and gluten content.

2️⃣ Durum wheat is sensitive to moisture. Harvesting should be conducted in dry, sunny weather to prevent grain from getting wet, which could lead to sprouting or quality loss. High moisture levels can reduce gluten content and negatively affect the final product.

3️⃣ Durum wheat stems are significantly stronger and tougher than those of soft wheat. These varieties are cultivated in arid conditions, making plants more resistant to lodging (falling over). As a result, stems remain upright even under unfavorable weather conditions. However, due to their stiffness, harvesters must be properly adjusted for effective threshing. The machinery should be powerful enough to handle the plant’s toughness. After harvesting, a large amount of rigid stubble remains in the field, which can be used for mulching or composting. It is also often shredded and left on the field as organic matter to improve soil fertility.

4️⃣ Durum wheat has hard grains, so combine harvesters must be adjusted accordingly. It is essential to minimize grain damage during threshing, as broken kernels can negatively impact further processing and the quality of the final product.

5️⃣ If grain moisture exceeds 14%, drying is necessary for long-term storage. This is especially important in humid conditions or when weather is unfavorable. Drying helps prevent mold growth and preserves grain quality.

6️⃣ Durum wheat is sensitive to storage conditions. To prevent gluten quality deterioration, it is essential to avoid high humidity and heat. After harvesting and drying, grain should be stored under optimal conditions: low humidity and controlled temperatures.

7️⃣ Preserving grain quality is crucial. During harvesting and transportation, mechanical damage should be minimized. This is important for further processing into pasta or semolina. Harvesting durum wheat requires a more meticulous approach than soft wheat. Maintaining high protein and gluten levels is the key goal during harvesting and storage.

Also read the article “Advantages of Using Slavyanka UAS Stripper Header for Durum Wheat Harvesting”.

Author: Ph.D., Associate Professor of the Department of Optimization of Technological Systems at GBU, mr. Pakhuchiy.
Photo taken from the website of AgroSepMash.