Core tip: Under the leadership of the Heilongjiang Provincial Department of Agriculture and Rural Affairs, the Heilongjiang Province Modern Agricultural Industry Technology Collaborative Innovation and Promotion System for Western Watermelon focuses on collaborative work before, during, and after production, particularly the cultivation demonstration and promotion of Western Watermelon varieties suitable for Heilongjiang's cold-region cultivation. According to the annual work schedule, on July 31, the Heilongjiang Province Modern Agricultural Industry Technology Collaborative Innovation and Promotion System and the Harbin Comprehensive Experimental Station of the National Western Watermelon Industry Technology System held a field observation and exchange meeting for new Western Watermelon varieties in the demonstration park of Qinggang County. This observation and exchange meeting featured over 700 varieties (or strains) on display and over 40 seed dealers in attendance.