دورية أكاديمية
Row orientation affects the uniformity of light absorption, but hardly affects crop photosynthesis in hedgerow tomato crops
| العنوان: | Row orientation affects the uniformity of light absorption, but hardly affects crop photosynthesis in hedgerow tomato crops |
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| المؤلفون: | van der Meer, Maarten, de Visser, Pieter H B, Heuvelink, Ep, Marcelis, Leo F M |
| المساهمون: | Hammer, Graeme, Wellensiek Fund |
| المصدر: | in silico Plants ; volume 3, issue 2 ; ISSN 2517-5025 |
| بيانات النشر: | Oxford University Press (OUP) |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Plant Science, Agronomy and Crop Science, Biochemistry, Genetics and Molecular Biology (miscellaneous), Modeling and Simulation |
| الوصف: | Light distribution within canopies is important for plant growth. We aimed to quantify the influence of row orientation on inter- and within-row variation of light absorption and photosynthesis in a hedgerow crop. An experiment with two row orientations of a tomato crop was conducted which was then used to calibrate a functional–structural plant model (FSPM). The FSPM was used to analyse light absorption and photosynthesis for each of the row facing directions in the double-row trellis system (e.g. north- and south-facing rows for the east–west row orientation). The measured leaf area decreased by 18 % and specific leaf area by 10 %, while fruit dry weight increased by 7 % for south-facing compared to north-facing rows, but total plant dry weight did not significantly differ. Model simulations showed a 7 % higher light absorption for the south-facing rows than north-facing rows, while net photosynthesis was surprisingly −4 % lower, due to local light saturation. When in the model leaf area was kept equal between the rows, light absorption for the south-facing rows was 19 % and net photosynthesis 8 % higher than for north-facing rows. We conclude that although south-facing rows would be expected to have a higher photosynthesis than north-facing rows, plants can adapt their morphology such that differences in light absorption and photosynthesis between north- and south-facing rows are minimal. Rows oriented north–south were more uniform in light absorption and photosynthesis than east–west rows, but the overall crop light absorption and photosynthesis were minimally affected (both 3 % lower compared to east–west orientation). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1093/insilicoplants/diab025 |
| DOI: | 10.1093/insilicoplants/diab025/39739830/diab025.pdf |
| الإتاحة: | https://doi.org/10.1093/insilicoplants/diab025Test http://academic.oup.com/insilicoplants/article-pdf/3/2/diab025/40391894/diab025.pdfTest |
| حقوق: | https://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: | edsbas.7F4F94E0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/insilicoplants/diab025 |
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