稻穗分化形成期是决定每穗粒数的关键时期之一。准确鉴定稻穗分化过程,对正确掌握稻田中期的肥水管理,调节杂交制种的花期相遇以及确定化学杀雄的适宜喷药时间等,都具有十分重要的意义。探索简捷准确的稻穗分化过程的鉴定方法,一直是引人注意的问题。 松岛省三首先系统而详细地研究了稻穗分化的全部过程,将稻穗分化过程划 Differentiation and formation of rice panicle is one of the key periods to determine grain number per spike. Accurate identification of rice differentiation process is of great importance to correctly grasp the fertilizer and water management in mid-paddy field, to adjust the flowering date of hybrid seed production and to determine the suitable spraying time for chemical killing. It has always been a matter of concern to explore a simple and accurate method for the identification of rice differentiation. Songsan three first systematic and detailed study of the whole process of panicle differentiation, panicle differentiation process plan