四、高粱的幼穗分化过程。高粱从生长锥分化后到抽穗时,它的幼穗发育过程分为八个阶段。为了更好地观察高粱幼穗的形成规律,以便根据幼穗的阶段发育对制种田花期进行较为准确的预测,同时为如何促进高产田的穗大粒多,而采用行之有效的栽培措施。我们于1973年以同杂二号品种为材料,对生长锥的发育过程进行了观察(见表3)。 Fourth, sorghum panicle differentiation process. Sorghum from the growth cone differentiation heading to heading, its panicle development process is divided into eight stages. In order to better observe the formation of sorghum spikelets in order to predict more accurately the flowering stage according to the stage of panicle development and to adopt effective cultivation methods for how to promote the spikelet size and grain size in high yield fields. We were in 1973 with the hybrid variety II as the material, the development of the growth cone was observed (see Table 3).