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在小麦生产中,粒重的变异是产量不稳的重要原因之一.由于环境条件的变化及受品种本身生物学规律的支配,小麦不同类型的品种间粒重差异很大,同一品种的年际间和同一年份不同栽培条件下粒重差异也很大.为了探索增加粒重的途径,首先必须了解籽粒的形成规律及其与营养器官之间的关系,以便有针对性地提出增加粒重的有效栽培措施和选择适合当地栽培的品种类型.为此,作者以不同类型的6个小麦品种为材料,进行了两年的连续试验研究,初步了解了灌浆速度对粒重的影响,以及营养器官与粒重的关系. 一、材料和方法(一) 供试品种:冬性小麦陕农701、烟农78,半冬性小麦宁7317、皖西7336和春性小麦钱江7603、津7526.
Grain weight variation is one of the main causes of yield instability in wheat production.Due to the changes of environmental conditions and the biological rules of the varieties themselves, the grain weight varies greatly among different types of wheat, In the same year and under the different cultivation conditions, there are also great differences in grain weight.In order to explore ways to increase the grain weight, we must first understand the rules of grain formation and its relationship with vegetative organs in order to propose to increase the grain weight Effective cultivation measures and selection of varieties suitable for local cultivation.Therefore, the author of six different types of wheat as a material, conducted two years of continuous pilot study to understand the initial filling rate on the impact of grain weight, as well as nutrition Organ and grain weight relationship.Materials and methods (A) the test varieties: winter wheat Shannong 701, tobacco farmers 78, semi-winter wheat Ning 7317, Wanxi 7336 and spring wheat Qianjiang 7603, Tianjin 7526. In the experiment,