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

李姜玲,杨澜,阮仁武,李中安

Analysis of Photosynthetic Characteristics of Hybrid Wheat at Seedling Stage and Its Use for Early Prediction of Strong Heterosis Combinations

LI JiangLing,YANG Lan,RUAN RenWu,LI ZhongAn

表3 小麦杂交组合光合性状的超高亲优势值

Table 3 Over high-parent heterosis of photosynthetic characters in hybrid wheat (%)

F1代 F1 hybrid 净光合速率 Pn 气孔导度 Gs 胞间二氧化碳浓度 Ci 水分利用效率 WUE 蒸腾速率 Tr 叶绿素a Chl.a 叶绿素b Chl.b 叶绿素(a+b) Chl.(a+b) 12L8015×川14品16 12L8015×Chuan 14 pin 16 18.63** 36.28** 7.82* 10.46** 7.73* -5.01* -9.13* -5.96 15L7084×川14品16 15L7084×Chuan 14 pin 16 8.80* 29.14** 2.90 -4.44 11.64** -9.72** -9.50* -9.67* 18L7077×川14品16 18L7077×Chuan 14 pin 16 7.00* 21.54** 3.08 -9.01* 3.59 -7.76* -8.82* -8.00* 12L8012×川麦93 12L8012×Chuanmai 93 20.39** 24.25** -9.23* -10.34** 11.45** -4.88 -4.58 -4.81 12L8015×川麦93 12L8015×Chuanmai 93 26.23** 26.19** -7.56* 13.06** 14.66** -8.44* -8.79* -8.52* 15L7084×川麦93 15L7084×Chuanmai 93 10.44** 8.42* -0.70 -15.80** 19.09** 1.13 2.17 1.54