发布求助
文献互助 智能选刊 最新文献

2006 Second International Symposium on Plant Growth Modeling and Applications最新文献

筛选
英文 中文
Developing Crop Simulation Model to Suit Diverse Users: Example of Hybrid-Maize Software 开发适合不同用户的作物模拟模型:以杂交玉米软件为例
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 2006-11-13 DOI: 10.1109/PMA.2006.12
Hsiao-Ju Yang, A. Dobermann, K. Cassman, D. Walters
{"title":"Developing Crop Simulation Model to Suit Diverse Users: Example of Hybrid-Maize Software","authors":"Hsiao-Ju Yang, A. Dobermann, K. Cassman, D. Walters","doi":"10.1109/PMA.2006.12","DOIUrl":"https://doi.org/10.1109/PMA.2006.12","url":null,"abstract":"We used the Hybrid-Maize program to discuss software features that meet the demands from diverse users. The Hybrid-Maize software features intuitive and flexible input options, comprehensive tabular and graphic simulation outputs. The software comes with complete documentation of model formulation and validation. Moreover, all key internal model parameters are transparent and modifiable. Utility programs are provided as part of the software package to streamline capture of online weather data and subsequent conversion and reformatting, as well as checkup for suspicious or missing data entries. The software has a context-sensitive help system and a comprehensive user's manual with examples of applications. A dedicated web site (www.hybridmaize.unl.edu) was also developed for the software.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124344429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Interactive System of Modeling 3D Trees with Ball B-Spline Curves 球b样条曲线三维树木建模的交互式系统
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 2006-11-13 DOI: 10.1109/PMA.2006.38
Zhongke Wu, Mingquan Zhou, Xingce Wang, X. Ao, Rongqing Song
{"title":"An Interactive System of Modeling 3D Trees with Ball B-Spline Curves","authors":"Zhongke Wu, Mingquan Zhou, Xingce Wang, X. Ao, Rongqing Song","doi":"10.1109/PMA.2006.38","DOIUrl":"https://doi.org/10.1109/PMA.2006.38","url":null,"abstract":"In this paper, we present an interactive system for quickly and easily modeling 3D trees with ball B- spline curves(BBSCs). As BBSCs are flexible for modifying, deforming and editing, these methods provide intuitive interaction and more freedom for users to model trees interactively. These interactive methods can also be used in conjunction with other methods like generating tree models through L- systems or iterated function systems (1FS) so that the models are more realistic and natural through modifying and editing interactively. The system generates a 3D geometry as well as its topological structures through interaction.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125073326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Effect of Topological and Phenological Changes on Biomass Partitioning in Arabidopsis thaliana Inflorescence: A Preliminary Model-Based Study 拓扑和物候变化对拟南芥花序生物量分配影响的初步模型研究
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.56
V. Letort, P. Cournède, J. Lecoeur, Irène Hummel, P. Reffye, Angélique Christophe
{"title":"Effect of Topological and Phenological Changes on Biomass Partitioning in Arabidopsis thaliana Inflorescence: A Preliminary Model-Based Study","authors":"V. Letort, P. Cournède, J. Lecoeur, Irène Hummel, P. Reffye, Angélique Christophe","doi":"10.1109/PMA.2006.56","DOIUrl":"https://doi.org/10.1109/PMA.2006.56","url":null,"abstract":"Although the existence of phenological impact on biomass partitioning in the plant is known for many species, it is difficult to quantify this effect and to unravel it from the complex functional processes that interact during plant growth. This work explores the variations of biomass allocated to fruits according to simple changes in the topological and phenological development of Arabidopsis thaliana plants. Four plants of the same genotype (ecotype Columbia) were grown in controlled conditions in growth chamber. Their topological differences were studied using the functional-structural model GreenLab. It showed that when fitting the four plants with a single set of parameters, but each plant being given its own topological structure, half of the biomass variability can be reproduced.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127195598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Tree Skeleton Extraction from a Single Range Image 从单个范围图像中提取树骨架
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.28
Zhanglin Cheng, Xiaopeng Zhang, T. Fourcaud
{"title":"Tree Skeleton Extraction from a Single Range Image","authors":"Zhanglin Cheng, Xiaopeng Zhang, T. Fourcaud","doi":"10.1109/PMA.2006.28","DOIUrl":"https://doi.org/10.1109/PMA.2006.28","url":null,"abstract":"Tree skeleton computation is of significance in the geometric modeling of botanic trees and in the application of forestry. This paper describes an approach to extract branch skeletons from a single range image of a tree. A basis of this approach is that the trunk and branches are modeled by generalized circular cylinders, and the tree skeleton is defined as the connected curve-axes of these cylinders. In the proposed system, the range image is partitioned into patches at first based on the discontinuity of depth and axis direction, where each patch only contains points from the same branch. Then each patch is fitted with a series of circular cylinders. Finally the tree skeleton is generated by sequentially connecting the skeleton points of fitted cylinders. This work shows that cylinder fitting can be used to handle the incompleteness of input data, and generate accurate skeleton points and corresponding radii. The main contribution of this paper is that we proposed a new definition and computation of tree skeletons and introduced an efficient and robust cylinder fitting method. Experiment shows the effectiveness of this approach.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"49 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131575296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Efficient Multiresolution of Foliage for Real-Time Rendering 高效的多分辨率树叶实时渲染
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.46
Q. Deng, Xiaopeng Zhang, M. Jaeger
{"title":"Efficient Multiresolution of Foliage for Real-Time Rendering","authors":"Q. Deng, Xiaopeng Zhang, M. Jaeger","doi":"10.1109/PMA.2006.46","DOIUrl":"https://doi.org/10.1109/PMA.2006.46","url":null,"abstract":"This paper presents a generalized geometric foliage simplification method to efficiently construct multi-resolution models for leaves with complex shapes. It includes two phases: preprocessing and rendering. In the preprocessing, we perform the simplification hierarchically in three levels: single leaf phyllotaxy group and whole crown. We first simplify each single complex leaf to a quadrilateral. Then, we implement the progressive leaf collapse in the phyllotaxy group and the crown one after the other. To accelerate the preprocessing, we search for the best leaf pair in a limited scope, where the pairs of leaves impossible to be collapsed are eliminated in advance. During the rendering, we determine detail levels for leaves locating in different positions of the crown according to the distance from the viewer to the rendered tree, and a statistical visibility. Finally, the less visible leaves are rendered coarsely. As a result, visual quality is maintained while the overall compression ratio is higher.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130707622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Adaptation of the GreenLab Model for Analyzing Sink-Source Relationships in Chinese Pine Saplings GreenLab模型在油松苗木库源关系分析中的应用
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.32
Hong Guo, V. Letort, L. Hong, T. Fourcaud, P. Cournède, Yuan-chang Lu, P. de Reffye
{"title":"Adaptation of the GreenLab Model for Analyzing Sink-Source Relationships in Chinese Pine Saplings","authors":"Hong Guo, V. Letort, L. Hong, T. Fourcaud, P. Cournède, Yuan-chang Lu, P. de Reffye","doi":"10.1109/PMA.2006.32","DOIUrl":"https://doi.org/10.1109/PMA.2006.32","url":null,"abstract":"Since the 1990s, a new generation of models has emerged to simulate tree growth with consideration of both tree structure and functional processes. However, calibration of these functional-structural models (FSMs) often remains an open problem due to the topological complexity of trees and to the heavy measurements required. In this paper, we explore a possible way for dealing with the fitting problem, based on the GreenLab model approach. Detailed organ-level data including topological and geometrical measurements were collected on eight Chinese Pine (Pinus tabulaeformis Carr.) saplings grown near Beijing. Adaptation of GreenLab to introduce a flexible modeling for biomass allocation to ring growth is presented. The main assumptions, such as allometry rules and sink relationships, were investigated. The problem of calibration of a complex branching structure was solved by defining an average tree. The results were interpreted with particular focus on the ones concerning the hidden mechanisms of secondary growth.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131094068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Study on the Effects of Defoliation on the Growth of Cotton Plant Using the Functional Structural Model GREENLAB 利用功能结构模型GREENLAB研究棉花叶片脱落对植株生长的影响
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.53
Z. Zhan, H. Rey, D. Li, Yan Guo, P. Cournède, P. de Reffye
{"title":"Study on the Effects of Defoliation on the Growth of Cotton Plant Using the Functional Structural Model GREENLAB","authors":"Z. Zhan, H. Rey, D. Li, Yan Guo, P. Cournède, P. de Reffye","doi":"10.1109/PMA.2006.53","DOIUrl":"https://doi.org/10.1109/PMA.2006.53","url":null,"abstract":"For the functional structural plant model GREENLAB, parameters for the source and sink relationships can be retrieved through model inversion with plant architectural data as targets. In order to study more precisely the production of source organs, a controlled defoliation experiment was performed on single-stemmed cotton plants. Four regular leaf-pruning treatments were implemented to produce single-stemmed plants that retained a given number of functional leaves (i.e., 6, 9, 12 and 15, respectively) at the top of stem during the whole period of plant development, and compared with control plants (single-stemmed plants retaining all the leaves). Results show that the most productive treatment in terms of fresh above-ground biomass was the treatment with 12 functional leaves retained, which were significantly greater than control plants. The optimized functional parameters of GREENLAB for the source and sink relationships were found to be affected in relation with the number of functional leaves retained on the plants.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132434793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Towards Simulating the Biomechanical Acclimation of Tree Roots Using Numerical Analyses 树根生物力学驯化的数值模拟研究
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.43
Jinnan Ji, T. Fourcaud, Zhiqiang Zhang
{"title":"Towards Simulating the Biomechanical Acclimation of Tree Roots Using Numerical Analyses","authors":"Jinnan Ji, T. Fourcaud, Zhiqiang Zhang","doi":"10.1109/PMA.2006.43","DOIUrl":"https://doi.org/10.1109/PMA.2006.43","url":null,"abstract":"2D finite element (FE) analysis of tree overturning was carried out. The main objective was to determine the effect of particular roots on anchorage strength in two contrasted soils and to discuss acclimation of root growth with regard to mechanical constraints. The FE model was based on the description of herringbone-like root patterns. Tree overturning simulations were performed applying a lateral displacement to a rigid stem. The results showed that lateral roots are the main components of tree anchorage in clay-like soil whereas the taproot plays a more significant role in sand. The modes of failure were different in the two soils, resulting in different root-plate shapes and rotation axis positions. Anisotropic secondary growth as a response to mechanical perturbations was also discussed based on the calculation of von Mises' stresses at the surface of the root elements. In conclusion, we propose a new concept whereby functional structural plant models are linked with biomechanical models in order to test hypotheses concerning tree growth acclimation to mechanical stresses.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117153599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Calibration of GREENLAB Model for Maize with Sparse Experimental Data 基于稀疏实验数据的玉米GREENLAB模型标定
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.27
Yuntao Ma, Meiping Wen, B. Li, Yan Guo, P. Cournède, P. Reffye
{"title":"Calibration of GREENLAB Model for Maize with Sparse Experimental Data","authors":"Yuntao Ma, Meiping Wen, B. Li, Yan Guo, P. Cournède, P. Reffye","doi":"10.1109/PMA.2006.27","DOIUrl":"https://doi.org/10.1109/PMA.2006.27","url":null,"abstract":"Simplification of field measurement to reduce the time-consuming data collection for calibration is important to facilitate the application of the GREENLAB model. The effect of such simplifications on the accuracy of parameter values should be quantified in order to define to what extent simplifications are valid. This study introduced a new method for model parameter optimization with sparse data of maize using a multi-fitting technique, evaluated the effect of such simplifications on the parameter values, and validated the calibrated model with four independent field data sets. The results showed that coefficients of variance (CV) among different simplifications were below 15% for most parameter values. The parameter values of the beta function varied more compared with those of relative sink strength for different simplifications. Organ biomass under four different climate regimes was simulated based on parameter values optimized with a sparse dataset. Significant (P<0.05) deviations of simulation vs. observation correlations from the 1:1 relationship were only observed for internodes of second experiment in 2003. Thus, multi-fitting with sparse data can provide reasonable accuracy of parameter values.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115554677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Optimizing Plant Growth Model Parameters for Genetic Selection Based on QTL Mapping 基于QTL定位的植物生长模型遗传选择参数优化
2006 Second International Symposium on Plant Growth Modeling and Applications Pub Date : 1899-12-30 DOI: 10.1109/PMA.2006.35
Voronique Letort, Paul Mahe, P. Cournède, P. Reffye, B. Courtois
{"title":"Optimizing Plant Growth Model Parameters for Genetic Selection Based on QTL Mapping","authors":"Voronique Letort, Paul Mahe, P. Cournède, P. Reffye, B. Courtois","doi":"10.1109/PMA.2006.35","DOIUrl":"https://doi.org/10.1109/PMA.2006.35","url":null,"abstract":"An increasing interest is given to the potential benefits of introducing ecophysiological knowledge in breeding programs. Indeed, crop models provide powerful tools to predict phenotypic traits from new genotypes under untested environmental conditions. But, until now, few attempts have been undertaken to bridge the gap from genes to phenotype with a chain of functional processes. In this paper, we propose a framework for simulating plant growth from its genotype. Thus the genetic correlations between the parameters can be taken into consideration when optimization processes are used to define ideotypes based on model parameters. The example of virtual maize growing under constant environmental conditions is presented using the functional-structural model GreenLab.","PeriodicalId":315124,"journal":{"name":"2006 Second International Symposium on Plant Growth Modeling and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1899-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131027975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信