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1986年与1987年对六个普通小麦品种穗轴维管束系统观察结果,提供了小麦穗轴各部位大维管束数目及其横截面积变化的实验数据。证实小麦穗轴大维管束数目基部至顶端随节位上升而递减。但其递减的多少,因部位而异:穗的下半部递减量略高于穗的上半部。表明穗轴下部节片通向小穗的大维管束数略多于穗轴上部。
The 1986 and 1987 observations on the cob system of six common wheat cultivars provided experimental data on the number of large vascular bundles and their cross-sectional area changes at various parts of the cob. Confirmed that the number of large tuberous bundles of wheat cob decreased from the base to the top with the ascending position. However, the amount of decrease depends on the part: the decrement of the lower part of the ear is slightly higher than the upper part of the ear. The results showed that the number of large vascular bundles leading to spikelets in the lower part of the cob was slightly larger than that in the upper part of the cob.