The researchers studied using spray pollination to pollinate two Japanese pear cultivars, 'Akizuki' and 'Shuurei'. They found that spray pollination with a mixture of pollen, agar, and sucrose resulted in similar fruit set levels as hand pollination. Both cultivars showed weak self-incompatibility, with some fruits setting even without pollination. 'Akizuki' also displayed parthenocarpic characteristics. Fruit quality parameters were comparable between spray and hand pollination methods. Overall, spray pollination is a convenient and effective way to grow 'Akizuki' and 'Shuurei' Japanese pears.