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试验采用石蜡连续切片法，对小麦４个春性品种和３个半冬性品种的茎秆维管束形成发育与穗部性状的关系进行了观察，结果表明：（１）分蘖节中心空间绝大部分为维管束群所占据。小麦茎生长锥伸长期是分蘖节中大维管束数目的最终决定期。（２）主茎基部伸长节间与穗下节间大维管束的比例关系为３：２．基部节间大维管束数与分化小穗数呈极显著正相关，穗下节间大维管束数与分化小穗数接近１：１的对应关系。（３）小麦节部的维管束联络结果为：节部的维管束粗大，成为茎内椭圆形大维管束，呈横行或倾斜状态。椭圆形维管束产生分枝、联合，形成分散维管束，包围着大维管束，并和边缘小维管束相连。大维管束在节板处与节网维管束相连，从叶鞘进入节部的维管束位于茎轴边缘，汇入边缘小维管束环。
Experiments were conducted to study the relationship between the development of vascular bundles and the characters of the ear traits in 4 spring wheat varieties and 3 semi-winter wheat varieties. The results showed that: (1) Part of the vascular bundle group occupied. Wheat stem growth cone elongation is the final determinant of the number of large vascular bundles in the tillering node. (2) The ratio between the main stem base elongation internode and the spike under the large vascular bundle is 3: 2. There was a significant and significant positive correlation between the number of large vascular bundles and the number of spikelets in the basal internodes. The number of large vascular bundles and the number of spikelets in the panicles were close to 1: 1. (3) The results of vascular bundles in the wheat node were as follows: the vascular bundle in the node was thick and became the oval big vascular bundle in the stem, which was transverse or inclined. Oval vascular bundles are branched, united, dispersed to form bundles that surround the large vascular bundles and connected to the marginal vascular bundles. The large vascular bundle is connected with the segment net vascular bundle at the node plate. The vascular bundle entering the node from the leaf sheath is located at the edge of the stem axis, and is introduced into the edge of the small vascular bundle.