Evaluation of a phenological model for strategic decisions for hemp (Cannabis Sativa L.) biomass production across European sites
Evaluation of a phenological model for strategic decisions for hemp (Cannabis Sativa L.) biomass production across European sites
复制标题
DOI：
10.1016/j.indcrop.2011.11.012
复制
发表时间：
2012-05-01
影响因子：
5.9
通讯作者：
Venturi, Gianpietro
中科院分区：
文献类型：
--
作者：
Amaducci, Stefano;Colauzzi, Michele;Venturi, Gianpietro
田间种植作物的大麻纤维的产量和质量的最佳组合是在开花前后。因此，花期预测可为不同农业生态区的生产规划和品种选择提供依据。在当前的论文中，验证了最近发表的模型（Amaducci等人，2008年a）进行了四个品种在广泛的网站，从而气温-光周期组合。该模型进行了评估，通过比较其输出到田间观察的持续时间之间的出现和50%开花。模型输出和观察到的时间从出苗到50%的开花一般对应良好，但一些差异是明显的。估计数和实际数据之间的最大差异出现在极端纬度地区。模型预测的准确性水平是令人满意的播种和收获时间和品种选择的战略决策，但战术决策（例如，基于开花时间的收获时间）不能准确地支持。(c)2011爱思唯尔有限公司版权所有。
The optimal combination of yield and quality of hemp fibres from field grown crops is around flowering. Therefore prediction of flowering time would support in planning production and optimization of the cultivar choice for different agro-ecological zones. In the current paper the validation of a recently published model (Amaducci et al., 2008a) is carried out for four varieties across a wide range of sites and thus of air temperature-photoperiod combinations. The model was evaluated by comparing its output to field observations of the duration between emergence and 50% flowering. The model output and observed times from emergence to 50% of flowering generally corresponded well, but some discrepancies were apparent. The biggest discrepancies between estimates and actual data were observed at extreme latitudes. The level of accuracy of the model predictions is satisfactory for strategic decision regarding sowing and harvesting time and cultivar choice, but tactical decisions (e.g. time of harvest based on flowering time) cannot be accurately supported. (c) 2011 Elsevier B.V. All rights reserved.