Increasing spikelet number per panicle is one of the key factors for high yield,and panicle differentiation is the important stage for spikelet number formation.In this research, we employ indica rice cultivation(Yangdao 6) to explore the development characteristic of panicle differentiation regulated by panicle fertilizer and cytokinin-like hormone 6-BA (6-benzyl adenine) in pot experiment.Researched young panicle growth,SPAD values changes curve of top leaves,and the expression pattern of cytokini...