Twelve farmer households in Quang Ninh province participated in a trial planting of lemon yellow cauliflower F1 - Broccoflower, receiving 70% support including seedling fee and technical training. The model achieved high productivity, quality, and economic efficiency, with the cauliflower being heat-resistant, pest-resistant, and having a shorter growth time to harvest. The success of the model has led to plans for a second trial planting to expand the area and gain more experience, with the lemon yellow cauliflower variety being praised for its ability to grow in various weather conditions.