根倒伏小麦抗倒性评价方法研究

以抗倒性不同的11个高产小麦品种（系）为材料，通过力学分析和根量测定，提出了小麦根倒伏的“品种倒伏系数”概念，经应用于品种抗倒性评价，证明“品种倒伏系数”综合考虑了植株的高度，重量，茎秆机械强度和根量等因素的影响，能客观，准确地评价品种抗倒性，通径分析结果表明，茎秆机械强度和根量与品种缺到性关系最为密切。

Evaluation Method of Root Lodging Resistance in Wheat

Using 11 high yield wheat varieties with different lodging resistance as materials,their stems were analysed mechanically and their root weigh is were measured, thus the concept "Variety lodging coefficient (VLC)" of wheat root lodging was proposed Having been applied in the evaluation of wheat root lodging resistance in practice VLC,which involved the plant height, root weight, aboveground fresh weight and mechanical strength of stem,was proved to be able to evaluate the lodging resistance objectively and accurately.The results of path analysis showed that the stem strength and rootweightwere closely related to VLC.The inportance of high root lodging resistance to the potentialof high yield was also discussed.