کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4511395 1321908 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Does spatial arrangement of 3D plants affect light transmission and extinction coefficient within maize crops?
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Does spatial arrangement of 3D plants affect light transmission and extinction coefficient within maize crops?
چکیده انگلیسی

Row spacing effects on light interception and extinction coefficient have been inconsistent for maize (Zea mays L.) when calculated with field measurements. To avoid inconsistencies due to variable light conditions and variable leaf canopies, we used a model to describe three-dimensional (3D) shoot structures combined with a model of 3D light transfer. The MODICA model mimics 3D shoot structures of maize plants from digitizations in the field and makes it possible to simulate associated hypothetical canopies by re-arranging plants into different row spacings. All row spacings examined with the model had 10 plants m−2. By using the light model RIRI, simulations showed the relative importance of development stage and time integration on fraction of light transmitted and on the extinction coefficient. Narrow row spacings consistently had less transmitted light and greater values of extinction coefficient. This modelling tool shows promise to effectively evaluate row spacing to optimize light interception.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 107, Issue 1, 11 April 2008, Pages 62–69
نویسندگان
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