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对冬小麦品种农林61号的观察结果表明，分蘖能否成穗不仅与相对于母茎的出叶速度、幼穗分化速度有关，还与分蘖本身器官之间的生长关系有关。在拔节开始后不久，无效分蘖的出叶速度和幼穗分化速度就明显落后于有效分蘖。与同叶龄的有效分蘖相比，无效分蘖不仅伸长幼叶的叶片长度小，而且伸长幼叶对展开叶的长度比也小。虽然幼穗分化速度在同叶龄的有效分蘖和无效分蘖之间无明显差异，但在同一幼穗发育阶段的幼穗长度无效分蘖要小于有效分蘖。这些结果表明，无效分蘖不仅生长速度慢，而且有不同于有效分蘖的生长方式。
The observation of winter wheat variety Nonglin 61 showed that the tillering ability is not only related to the leaf stem speed and spike differentiation rate but also to the growth of tiller itself. Shortly after the start of jointing, the rate of leaf emergence and spike differentiation of ineffective tillers clearly lagged behind that of effective tillers. Compared with effective tillers at the same leaf age, ineffective tillers not only elongate leaves of young leaves but also elongate leaves to young leaves. Although spike differentiation rate had no significant difference between effective tillering and ineffective tillering, the tillering of young spike length in the same panicle development stage was less than that of effective tillering. These results show that not only the inefficient tiller growth is slow, but also different from the effective tillering growth mode.