杂交小麦苗期光合特性分析及其对强优势组合的早期预测
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李姜玲,杨澜,阮仁武,李中安
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Analysis of Photosynthetic Characteristics of Hybrid Wheat at Seedling Stage and Its Use for Early Prediction of Strong Heterosis Combinations
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LI JiangLing,YANG Lan,RUAN RenWu,LI ZhongAn
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表2 杂交小麦光合特性的杂种优势表现
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Table 2 Performance of heterosis for photosynthetic characters in hybrid wheat
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性状
Trait | 超高亲优势
Over high-parent heterosis | 中亲优势
Over mid-parent heterosis | 超低亲优势
Below low-parent heterosis | 正向组合数
HPH>0 | 平均
AH (%) | 范围
Range (%) | 正向组合数
MPH>0 | 平均
AH (%) | 范围
Range (%) | 负向组合数LPH<0 | 平均
AH (%) | 范围
Range (%) | | 净光合速率 Pn | 6 | 15.40 | 7.00-26.23 | 6 | 20.08 | 11.82-33.05 | 0 | 25.34 | 13.25-40.66 | | 气孔导度 Gs | 6 | 24.30 | 8.42-36.27 | 6 | 35.82 | 20.35-47.81 | 0 | 39.35 | 16.60-61.47 | | 胞间二氧化碳浓度 Ci | 3 | -0.61 | -9.22-7.82 | 3 | 0.16 | -6.35-8.95 | 1 | 3.04 | -5.11-10.11 | | 水分利用效率 WUE | 3 | -2.67 | -15.80-13.06 | 4 | 2.88 | -11.58-16.67 | 1 | 9.42 | -9.00-23.27 | | 蒸腾速率 Tr | 6 | 11.36 | 3.59-19.09 | 6 | 16.93 | 8.00-22.07 | 0 | 23.82 | 8.28-40.43 | | 叶绿素a Chl.a | 1 | -5.78 | -9.72-1.13 | 2 | -2.65 | -7.22-1.46 | 3 | 0.79 | -4.59-8.88 | | 叶绿素b Chl.b | 1 | -6.44 | -9.50-2.17 | 1 | -4.18 | -8.32-2.72 | 4 | 0.16 | -7.11-3.28 | | 叶绿素(a+b) Chl.(a+b) | 1 | -5.90 | -9.67-1.94 | 1 | -3.00 | -7.48-1.59 | 3 | 0.16 | -5.18-6.67 |
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