Impact of spatio-temporal shade dynamics on wheat growth and yield, perspectives for temperate agroforestry

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• 作者：Sidonie Artru^a ; ^{sidonie.artru@ulg.ac.be} ; Sarah Garré ; ^b ; Christian Dupraz^c ; Marie-Pierre Hiel^a ; Cé ; line Blitz-Frayret^c ; Ludivine Lassois^b
• 关键词：Winter wheat ; Spatio-temporal shade ; Grain yield ; Modeling ; Agroforestry system
• 刊名：European Journal of Agronomy
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：82
• 期：part_PA
• 页码：60-70
• 全文大小：1879 K
• 卷排序：82

文摘

The artificial shade setup reproduces the effect of a heterogeneous spatio-temporal light environment at the seasonal and daily time scale. Modelling allows predicting light availability over 50 years old tree rotation with an E-W and N-S tree line orientation. Reducing global radiation from 10–16 days before flowering until final harvest reduces the final grain and protein yield of winter wheat. This reduction in yield was due to both a reduction of the average grain weight and in the number of grain per m2.