限水减氮对豫北冬小麦产量和植株不同层次器官干物质运转的影响
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姜丽娜,马静丽,方保停,马建辉,李春喜,王志敏,蒿宝珍
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Effect of lower water and nitrogen supply on grain yield and dry matter remobilization of organs in different layers of winter wheat plant in northern Henan province
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Li-Na JIANG,Jing-Li MA,Bao-Ting FANG,Jian-Hui MA,Chun-Xi LI,Zhi-Min WANG,Bao-Zhen HAO
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表1 减氮处理(N3、N2、N1、N0)与常规施氮处理(N4)相比小麦植株各器官干物质运转量、运转率和对籽粒贡献率的增加量和增加率
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Table 1 Increase amount and increase rate of dry matter remobilization amount (DMRA), dry matter remobilization efficiency (DMRE), and contribution of dry matter remobilization to grain (CDMR) of individual organs of wheat shoots in treatments of decreased N rates (N3, N2, N1, N0) compared with N4
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器官
Organ | 运转量DMRA | | 运转率DMRE | | 贡献率CDMR | 增加量
Increase amount
(mg stem-1) | 增加率
Increase rate (%) | 增加量
Increase amount (%) | 增加率
Increase rate
(%) | 增加量
Increase amount (%) | 增加率
Increase rate
(%) | | 穗轴+颖壳Chaff | 23.0 | 323.2 | | 6.0 | 313.7 | | 1.8 | 377.0 | | 旗叶 Flag leaf | -1.6 | -4.2 | | 0 | 0.1 | | 0.1 | 2.8 | | 倒二叶 2nd leaf | -2.8 | -7.4 | | -0.7 | -1.9 | | 0 | 0.3 | | 倒三叶 3rd leaf | 4.3 | 28.7 | | 7.4 | 32.9 | | 0.4 | 39.6 | | 倒四叶 4th leaf | 7.0 | 201.1 | | 17.4 | 182.7 | | 0.6 | 244.5 | | 余叶 Residue leaf | -1.9 | -11.8 | | 0.4 | 1.0 | | 0 | -3.7 | | 叶片 Leaf | 5.1 | 4.6 | | 4.9 | 17.8 | | 1.0 | 13.4 | | 倒一节 1st internode | -9.9 | -15.9 | | -2.3 | -12.9 | | -0.4 | -9.4 | | 倒二节 2nd internode | 12.8 | 21.7 | | 4.5 | 19.3 | | 1.4 | 34.2 | | 倒三节 3rd internode | 22.9 | 71.8 | | 10.8 | 63.6 | | 2.0 | 91.6 | | 倒四节 4th internode | 19.2 | 44.5 | | 9.5 | 31.2 | | 1.8 | 60.0 | | 余节 Residue internode | 14.6 | 31.1 | | 18.9 | 41.6 | | 1.4 | 42.8 | | 茎节 Internode | 59.6 | 24.5 | | 8.3 | 30.9 | | 6.3 | 36.8 |
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