作物矮秆和抗倒伏之间虽然存在着密切相关性,但其正相关并不是普遍的规律性。例如,中国矮秆小麦类型中有的倾向倒伏,而欧州的高秆品种中有的抗倒伏(伊万诺夫1965)。对二十个小麦品种和品系的研究,使我们明确了株高与产量之间以及抗倒伏性和茎秆的许多几何参数与坚固性参数之间的正相关。这些几何参数是:茎秆高度(H),茎秆直径(D~+),茎壁厚度(δ~+);坚固性参数是:茎秆材料的计算强度(R)和弹性模量(E)。抗倒伏性 Although there is a close correlation between crop dwarfing and lodging resistance, its positive correlation is not universal. For example, some of the dwarf types in China tend to lodging, while some of the tall varieties in Europe are lodging resistant (Ivanov 1965). Research on twenty wheat varieties and lines led us to identify a positive correlation between plant height and yield, lodging resistance, and many geometric and stalk parameters of the stalk. The geometric parameters are stem height (H), stem diameter (D ~ +) and stem wall thickness (δ ~ +). Ruggedness parameters are calculated strength (R) and elastic modulus ). Lodging resistance