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本文利用17份糖高粱材料,通过简单相关、偏相关及通径分析,研究了穗柄及自上而下第1～7节段锤度与主茎秆锤度的关系,及其对主茎秆锤度有较大的正直接效应。结果表明,第5、2节段对主茎秆锤度有较大的正直接效应;第4、6、7节段和穗柄对主茎秆锤度的正直接效应较小;第3、1节段对主茎秆锤度有较大的负直接效应。这说明改进第5、2节段锤度对主茎秆锤度的提高具有重要作用;第4、6、7节段和穗柄对主茎秆锤度的改进也有一定作用;第3、1节段对主茎秆锤度的提高是不利的。
In this paper, 17 sorghum sorghum materials were used to study the relationship between the stems and the billet from the top to bottom and the billet of the main stem through simple correlation, partial correlation and path analysis, BHA has a larger positive direct effect. The results showed that segments 5 and 2 had a more positive and direct effect on the billet billet dominance; the direct effects of segments 4, 6, and 7 on the stem billet were smaller; 1 segment of the main stem billet has a greater negative direct effect. This shows that the improvement of the first 5,2 billet on the main billet bilge degree has an important role; section 4,6,7 and ear handle on the improvement of the main stem billet have a certain degree of effect; the first 3,1 Segments on the main stem bimodal improvement is detrimental.