春季低温对小麦产量和光合特性的影响

王瑞霞, 闫长生, 张秀英, 孙果忠, 钱兆国, 亓晓蕾, 牟秋焕, 肖世和

Effect of Low Temperature in Spring on Yield and Photosynthetic Characteristics of Wheat

Rui-Xia WANG, Chang-Sheng YAN, Xiu-Ying ZHANG, Guo-Zhong SUN, Zhao-Guo QIAN, Xiao-Lei QI, Qiu-Huan MOU, Shi-He XIAO

表1 低温处理后各品种的光合特性差异

Table 1 Variation of photosynthetic characteristics after low temperature stress

年份 Year 品种 Cultivar 参数 Parameter CK1 LT-J CK2 LT-B 2012-2013 济麦22 Jimai 22 Chl (mg mg-1) 63.40 55.10** 62.90 54.60** Pn (μmol m-2 s-1) 17.30 8.44** 10.22 2.35** E (mmol m-2 s-1) 1.93 0.68** 0.94 0.67* Cleaf (mmol m-2 s-1) 187.30 73.50** 74.30 48.60** Cint (μmol mol-1) 97.90 340.50** 260.50 337.30** 泰山6426 Taishan 6426 Chl (mg mg-1) 61.20 54.80** 57.50 54.20 Pn (μmol m-2 s-1) 15.96 5.14** 10.35 2.39** E (mmol m-2 s-1) 0.65 0.31** 0.76 0.51* Cleaf (mmol m-2 s-1) 131.10 69.70** 63.40 49.50** Cint (μmol mol-1) 164.80 353.80** 269.6 356.20** 泰山4033 Taishan 4033 Chl (mg mg-1) 58.40 49.90** 56.10 45.00** Pn (μmol m-2 s-1) 20.01 5.17** 9.07 1.89** E (mmol m-2 s-1) 0.60 0.11** 0.60 0.32* Cleaf (mmol m-2 s-1) 134.50 64.80** 59.00 45.90** Cint (μmol mol-1) 138.60 375.80** 234.10 354.80** 2013-2014 济麦22 Jimai 22 Chl (mg mg-1) 65.80 57.10** 60.90 57.40* Pn (μmol m-2 s-1) 26.50 4.77** 27.66 5.54** E (mmol m-2 s-1) 1.62 0.80** 0.80 0.78 Cleaf (mmol m-2 s-1) 305.90 83.60** 66.20 53.80** Cint (μmol mol-1) 280.40 341.20** 271.10 289.60** 泰山6426 Taishan 6426 Chl (mg mg-1) 62.30 58.00** 59.90 58.20 Pn (μmol m-2 s-1) 18.07 4.92** 20.79 0.33** E (mmol m-2 s-1) 1.24 0.81** 0.45 0.34** Cleaf (mmol m-2 s-1) 193.90 95.40** 58.80 43.00** Cint (μmol mol-1) 279.00 343.50** 239.80 436.70** 泰山4033 Taishan 4033 Chl (mg mg-1) 57.60 51.80** 57.50 47.10** Pn (μmol m-2 s-1) 22.45 1.34** 21.56 0.28** E (mmol m-2 s-1) 1.14 0.56** 1.82 1.27** Cleaf (mmol m-2 s-1) 180.60 68.60** 57.20 41.30** Cint (μmol mol-1) 229.10 406.90** 161.30 401.40**