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3.稻穗分化过程:稻穗的中轴即穗轴为主梗,直接着生在主梗穗节上的枝梗,称第一枝次梗,由此再分出小枝,称第二次枝梗,颖花着生在第一次枝梗和第二次枝梗的小穗梗上。通常每个穗节有一个枝梗,互生于主梗的两侧,近基部常有2～3个枝梗轮生于一个穗节上。各节都有茸毛,近基部的节更明显地生出退化的苞状变形叶,称为苞。从穗的基节着生第一苞,顺序向上每个第一次枝梗基部分
3. Panicle differentiation process: the panicle axis that is the main axis of stalk, directly on the main stem section on the stems and stems, said the first branch terrier, which is divided into twigs, said the second Branch stems, sparse flowers born in the first branchlets and the second branchlets spikelets on. Usually each spike has a branch stems, alternate on both sides of the main stem, near the base often 2 to 3 branch stems born in a spike festival. Each section has hairy, near the base of the section is more obvious to produce degenerate bud-shaped deformation of the leaves, known as the bud. From the basal section of the ear with the first bud, the order of each first branch base upward