Effects of grain shape and size on milling yields in wheat. I. Theoretical analysis based on simple geometric models
Effects of grain shape and size on milling yields in wheat. I. Theoretical analysis based on simple geometric models
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籽粒形状和大小对小麦磨粉产量的影响。
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
D. Mares
中科院分区：
文献类型：
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作者：
Marshall;F. Ellison;D. Mares
本文分析了小麦籽粒的简单几何模型，以确定形状和大小的变化对单位表面积体积的影响，从而确定潜在的碾磨产量。这些分析表明，粮食体积的实质性变化将有更大的影响比粮食形状的变化，碾磨产量。目前澳大利亚栽培品种的籽粒形状和大小与最大化单位表面积体积所需的最佳值（1 e.关于颗粒大小的遗传变异性的现有数据表明，应该有可能将澳大利亚小麦的颗粒大小增加50-100%，并将潜在的碾磨产量提高2- 3%。然而，虽然也存在相当大的遗传变异的粒形，现有的证据表明，选择最佳形状可能会导致相关的减少种子大小，从而抵消任何收益所取得的改变种子形状。
Simple geometric models of wheat grains have been analysed to determine the effects of changes In shape and size on volume per unit surface area and hence potential milling yield. These analyses suggest that substantial changes In grain volume would have a greater effect on milling yield than would changes in grain shape. The shape and size of kernels of current Australian cultivars differ markedly from the optimum required to maximize volume per unit surface area (1 e. a spherical gram) Available data on genetic variability for grain size indicates that it should be possible to increase the gram size of Australian wheats by 50-100% and improve potential milling yields by 2-3%. However, while considerable genetic variation for grain shape also exists, the evidence available suggests that selection for optimal shape is likely to result in a correlated reduction in seed size thereby offsetting any gains achieved by changing seed shape.