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辣椒净光合速率与农艺性状间的灰色关联分析结果表明,平均净光合速率与农艺性状间灰色关联度的大小顺序为叶长>叶柄长>叶宽>第一花节位>果肉厚>株幅>株高>疫病抗性>果宽>TMV抗性>主茎高>果长>CMV抗性>疮痂病抗性>侧枝数。相关分析结果表明,净光合速率与叶片性状的相关性最强,但与侧枝数、株高、主茎高、果肉厚、CMV和疮痂病抗性的偏相关系数也达到了显著或极显著水平。通径分析结果表明,叶长和侧枝数对净光合速率的直接作用较大,叶柄长、叶宽和第一花节位次之,其它植株性状的直接作用相对较弱。净光合速率在开花结果前期受叶片性状影响大,后期受抗病性的影响大。
The results of gray correlation analysis between net photosynthetic rate and agronomic traits showed that the order of the gray correlation degree between the average net photosynthetic rate and agronomic traits was leaf length> petiole length> leaf width> first flower node> flesh thickness> Plant height> Resistance to disease> Fruit width> TMV resistance> Main stem height> Fruit length> CMV resistance> Scab resistance> Number of lateral branches. Correlation analysis showed that the correlation between net photosynthetic rate and leaf traits was the strongest, but the partial correlation coefficient with the number of branches, plant height, main stem height, flesh thickness, CMV and scab resistance also reached significant or extremely significant level . The results of path analysis showed that the direct effect of leaf length and collateral number on net photosynthetic rate was greater. The longer the petiole, the longer the leaf width and the second was the first flower node, the direct effect of other plant characters was relatively weaker. Net photosynthetic rate in flowering early prophase affected by leaf traits, later by the disease resistance.