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CFD modelling and wind tunnel validation of airflow through plant canopies using 3D canopy architecture KU Leuven
The efficiency of pesticide application to agricultural fields and the resulting environmental contamination highly depend on atmospheric airflow. A computational fluid dynamics (CFD) modelling of airflow within plant canopies using 3D canopy architecture was developed to understand the effect of the canopy to airflow. The model average air velocity was validated using experimental results in a wind tunnel with two artificial model trees of 24 ...
Light quality regulates plant architecture in different genotypes of Chrysanthemum morifolium Ramat. Research Institute for Agriculture, Fisheries and Food Ghent University
Specific light spectra play an important role in plant photomorphogenic responses. Plants are sensitive to light ranging from UV (280-400 nm) to far-red light (700-800 nm). The shoot architecture or plant shape is an important quality trait in ornamental plants and can be altered under specific light spectra. The shade avoidance syndrome is a well-documented response of plants to canopy shading and low R:FR conditions, characterized by shoot ...
Insights into the genetic control of plant architecture in apple KU Leuven
Apple (Malus x domestica) is one of the most important fruit crops in the world and growers are continuously seeking to improve fruit production and fruit quality while reducing management costs. Yield, homogeneity of fruit quality and the time needed for young trees to reach full production are influenced by the tree's architecture. Tree architecture is currently controlled through orchard management practices, but these practices can be ...
The impact of translocation mechanisms and plant architecture on the success or failure of propagation, a thidiazuron case study. Research Institute for Nature and Forest
While developing a propagation method for coconut (Cocos nucifera), we observed that the addition of thidiazuron (TDZ), a phenylurea based cytokinin, to the medium, did not elicit a reaction. We hypothesized that the apical dominance was too strong, preventing the TDZ from initiating shoot proliferation. To test this, we broke the apical dominance by cutting the plantlets vertically in two, removing the apical meristem from one piece. Both ...
Genetic architecture of plant stress resistance: multi-trait genome-wide association mapping KU Leuven
Plants are exposed to combinations of various biotic and abiotic stresses, but stress responses are usually investigated for single stresses only. Here, we investigated the genetic architecture underlying plant responses to 11 single stresses and several of their combinations by phenotyping 350 Arabidopsis thaliana accessions. A set of 214 000 single nucleotide polymorphisms (SNPs) was screened for marker-trait associations in genome-wide ...
Morphological and physiological variation of plant architecture in red clover (Trifolium pratense) Research Institute for Agriculture, Fisheries and Food
Grass/clover mixtures contribute to agricultural sustainability by reducing nitrogen fertilization and increasing the nutritional value of feed and food (high protein and polyunsaturated fatty acid levels). However, the current red clover cultivars have a low persistence. Persistence can be improved by altering the plant’s architecture, which is controlled both by genetics and environment. We have analyzed two of the many branching phenotypes, ...
Mitochondrial respiratory pathways modulate nitrate sensing and nitrogen-dependent regulation of plant architecture in Nicotiana sylvestris Ghent University
Mitochondrial electron transport pathways exert effects on carbon-nitrogen (C/N) relationships. To examine whether mitochondria-N interactions also influence plant growth and development, we explored the responses of roots and shoots to external N supply in wild-type (WT) Nicotiana sylvestris and the cytoplasmic male sterile II (CMSII) mutant, which has a N-rich phenotype. Root architecture in N. sylvestris seedlings showed classic responses to ...