Researchers tested different amounts of light exposure on Adzuki bean plants to see how it affected their growth and yield. They found that shorter days made the plants grow faster, with flowers appearing earlier and pods forming sooner. The best results were seen with 12 hours of light and 12 hours of darkness. This treatment led to earlier flowering, more pods per plant, and higher weight of the beans. Overall, the study showed that adjusting the amount of light can help Adzuki bean plants grow better and produce more beans.