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为了定量油菜主茎叶片形态参数与生物量间的关系,本研究基于2011—2012年和2012—2013年不同品种、移栽密度及施肥水平油菜田间试验,通过观测不同品种和处理油菜叶片长、最大叶宽和叶柄长等形态参数,并分析了上述参数与叶片生物量的关系,构建了基于生物量的油菜叶长、最大叶宽和叶柄长模型。结果表明,在全生育期,不同品种和处理下油菜主茎叶长和最大叶宽均与叶片生物量的平方根成正比,而叶柄长与叶长成正比。所建模型利用截距为0的线性函数描述叶长和最大叶宽随生物量平方根的变化,用直线式描述叶柄长随叶长的变化。经独立试验资料检验,除宁油16叶柄长模型误差较大外,所建模型对其余形态参数均具有较好预测性,为通过生物量将油菜生长模型与形态结构模型结合提供了机理性较强的方法,为建立油菜功能-结构模型奠定了基础。
In order to quantify the relationship between leaf morphological parameters and biomass of rapeseed, based on the field trials of rapeseed with different varieties, transplanting density and fertilizer level from 2011 to 2012 and from 2012 to 2013, , Maximum leaf width and petiole length. The relationship between these parameters and leaf biomass was analyzed. The biomass-based rape leaf length, maximum leaf width and petiole length model were constructed. The results showed that in the whole growth period, the stem length and the maximum leaf width of the main varieties were all proportional to the square root of leaf biomass under different varieties and treatments, while the length of the petiole was proportional to the leaf length. The proposed model uses a linear function with intercept of 0 to describe the change of leaf length and maximum leaf width with the square root of biomass, and describes the change of petiole length with leaf length in a straight line. According to the independent test data, except for the long model error of Ningyou 16 petiole, the model has good predictability for the other morphological parameters, and provides a mechanism for the comparison of the rapeseed growth model with the morphological model by biomass Strong methods laid the foundation for the establishment of a rape-function-structure model.