刘建华, 牛俊义, 闫志利, 李海波, 邹红川. 肥密水平对不同基因型冬小麦籽粒灌浆特性的影响[J]. 中国生态农业学报(中英文), 2009, 17(4): 656-660. DOI: 10.3724/SP.J.1011.2009.00656
引用本文: 刘建华, 牛俊义, 闫志利, 李海波, 邹红川. 肥密水平对不同基因型冬小麦籽粒灌浆特性的影响[J]. 中国生态农业学报(中英文), 2009, 17(4): 656-660. DOI: 10.3724/SP.J.1011.2009.00656
LIU Jian-Hua, NIU Jun-Yi, YAN Zhi-Li, LI Hai-Bo, ZOU Hong-Chuan. Effect of fertilization dose and sowing density on grain-filling in different winter wheat cultivars[J]. Chinese Journal of Eco-Agriculture, 2009, 17(4): 656-660. DOI: 10.3724/SP.J.1011.2009.00656
Citation: LIU Jian-Hua, NIU Jun-Yi, YAN Zhi-Li, LI Hai-Bo, ZOU Hong-Chuan. Effect of fertilization dose and sowing density on grain-filling in different winter wheat cultivars[J]. Chinese Journal of Eco-Agriculture, 2009, 17(4): 656-660. DOI: 10.3724/SP.J.1011.2009.00656

肥密水平对不同基因型冬小麦籽粒灌浆特性的影响

Effect of fertilization dose and sowing density on grain-filling in different winter wheat cultivars

  • 摘要: 为确定施肥量和种植密度对不同品种小麦灌浆特性的影响, 采用多因素随机区组设计试验方法, 对优质冬小麦“陇鉴301”、“宁麦5号”和“1R17”的籽粒灌浆特性进行了研究, 应用Logistic方程对灌浆进程进行了拟合, 并就施肥量、种植密度和品种3因素进行了方差分析。结果表明:不同肥密水平下小麦灌浆进程符合Logistic生长曲线, 呈“慢-快-慢”“S”型变化。肥密水平对3品种12项灌浆参数均产生影响, 但影响的具体参数和影响程度因品种而异。在高密度高肥处理下, “陇鉴301”、“宁麦5号”较为适应, 产量最高(4 188.09 kg·hm-2, 3 789.89 kg·hm-2);高密度中肥处理下, “1R17”最为适应, 产量最高(3 018.18 kg·hm-2), 且灌浆过程达到最佳状态。不同品种肥密互作效应达极显著水平, 具有正向的互作值。为提高小麦产量, 生产上应依据不同基因型品种的特性来确定施肥量和种植密度。

     

    Abstract: Multi-factor Randomized Complete Block Design (RCBD) experiment was conducted to analyze the effect of fertilization dose and sowing density on the characteristics of grain-filling in three hi-quality winter wheat cultivars (“Longjian301”, “Ningmai5” and “1R17”). Variance analysis on the three factors of fertilization dose, sowing density and cultivar was then conducted based on the fitting result of grain-filling process via Logistic Growth Equation (LGE). The results indicate that grain-filling of 3 winter wheat cultivars best fits LGE under different fertilization dose and sowing density, with an S-like breakthrough curve of slow-fast-slow trend. The levels of fertilization and sowing density influence 12 grain-filling parameters of winter wheat cultivars, with both affected parameters and degree of effect varying with cultivar type. Yields of “Longjian301” and “Ningmai5” under high sowing density and fertilization treatment are highest (4 188.09 kg·hm-2 and 3 789.89 kg·hm-2 respectively). Under medium fertilization and high sowing density treatment, yield of “1R17” is highest (3 018.18 kg·hm-2) and grain-filling achieves the best state. Interaction between fertilization and sowing density is significant and apparently positive. In order to increase grain yield, fertilization dose and sowing density determination should be based on the characteristics of different wheat cultivars.

     

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