Generalized Linear Model with Elastic Net Regularization and Convolutional Neural Network for Evaluating Aphanomyces Root Rot Severity in Lentil  

作　　者：Afef Marzougui Yu Ma Rebecca J.McGee Lav R.Khot Sindhuja Sankaran 

机构地区：[1]Department of Biological Systems Engineering,Washington State University,Pullman,WA,USA [2]Department of Horticulture,Washington State University,Pullman,WA,USA [3]United States Department of Agriculture-Agricultural Research Service,Grain Legume Genetics and Physiology Research Unit,Washington State University,Pullman,WA,USA

出　　处：《Plant Phenomics》2020年第1期378-388,共11页植物表型组学（英文）

基　　金：This activity was funded in part by US Department of Agriculture(USDA)-National Institute for Food and Agriculture(NIFA)Agriculture and Food Research Initiative Competitive Project WNP06825(accession number 1011741);Hatch Project WNP00011(accession number 1014919);the Washington State Department of Agriculture,Specialty Crop Block Grant program(project K1983).

摘　　要：Phenomics technologies allow quantitative assessment of phenotypes across a larger number of plant genotypes compared to traditional phenotyping approaches.The utilization of such technologies has enabled the generation of multidimensional plant traits creating big datasets.However,to harness the power of phenomics technologies,more sophisticated data analysis methods are required.In this study,Aphanomyces root rot(ARR)resistance in 547 lentil accessions and lines was evaluated using Red-Green-Blue(RGB)images of roots.We created a dataset of 6,460 root images that were annotated by a plant breeder based on the disease severity.Two approaches,generalized linear model with elastic net regularization(EN)and convolutional neural network(CNN),were developed to classify disease resistance categories into three classes:resistant,partially resistant,and susceptible.The results indicated that the selected image features using EN models were able to classify three disease categories with an accuracy of up to 0:91±0:004(0:96±0:005 resistant,0:82±0:009 partially resistant,and 0:92±0:007 susceptible)compared to CNN with an accuracy of about 0:84±0:009(0:96±0:008 resistant,0:68±0:026 partially resistant,and 0:83±0:015 susceptible).The resistant class was accurately detected using both classification methods.However,partially resistant class was challenging to detect as the features(data)of the partially resistant class often overlapped with those of resistant and susceptible classes.Collectively,the findings provided insights on the use of phenomics techniques and machine learning approaches to provide quantitative measures of ARR resistance in lentil.

关 键 词：classify ELASTIC ROOTS 

分 类 号：S43[农业科学—农业昆虫与害虫防治] TP183[农业科学—植物保护]