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“绵阳11号”和“绵阳12号”是目前丰产性能较好的穗重型小麦品种。这两个品种要夺得大面积800斤以上的亩产碰到的第一个问题就是穗多与穗大的矛盾。一般的规律是单位面积内穗数增多穗重就减轻;相反如果片面追求穗重,则单位面积内穗数偏少,也不能获得高产。为此,就要根据小麦分蘖发生规律及其与成穗的关系正确处理穗数和穗重的矛盾,使二者协调发展,才能获得高产。
“Mianyang 11” and “Mianyang 12” is the current high-yielding performance of spike heavy wheat varieties. The first problem encountered by these two species in winning a large area of more than 800 kg mu is the contradiction between spikes and spikes. The general rule is that the number of spikelets per unit area increased while the number of spikes decreased. On the contrary, if the one-sided pursuit of spikelets was small, the number of spikelets per unit area was too small to achieve high yield. Therefore, it is necessary to correctly handle the contradiction between panicle number and panicle weight according to the law of tillering of wheat and its relationship with panicle formation, so that the two can coordinately develop to obtain high yield.