Identification of foliar diseases in cotton crop

The pathogens manifestation in plantations are the largest cause of damage in several cultivars, which may cause increase of prices and loss of crop quality. This paper presents a method for automatic classification of cotton diseases through feature extraction of leaf symptoms from digital images. Wavelet transform energy has been used for feature extraction while Support Vector Machine has been used for classification. Five situations have been diagnosed, namely: Healthy crop, Ramularia disease, Bacterial Blight, Ascochyta Blight, and unspecified disease. © 2012 Taylor & Francis Group.

Ontology for Data Representation in the Production of Cotton Fiber in Brazil

An important feature in computer systems developed for the agricultural sector is to satisfy the heterogeneity of data generated in different processes. Most problems related with this heterogeneity arise from the lack of standard for different computing solutions proposed. An efficient solution for that is to create a single standard for data exchange. The study on the actual process involved in cotton production was based on a research developed by the Brazilian Agricultural Research Corporation (EMBRAPA) that reports all phases as a result of the compilation of several theoretical and practical researches related to cotton crop. The proposition of a standard starts with the identification of the most important classes of data involved in the process, and includes an ontology that is the systematization of concepts related to the production of cotton fiber and results in a set of classes, relations, functions and instances. The results are used as a reference for the development of computational tools, transforming implicit knowledge into applications that support the knowledge described. This research is based on data from the Midwest of Brazil. The choice of the cotton process as a study case comes from the fact that Brazil is one of the major players and there are several improvements required for system integration in this segment.

The third International congress of delegated representatives of master cotton spinners' and manufacturers' associations, held in the large hall, Künstlervereinshaus, Domsheide, Bremen, June 25th to 27th, 1906.

Official report of the proceedings.

The seventh International congress of delegated representatives of master cotton spinners' and manufacturers' associations, held in the Palais des academies ... Brussels, June 6th, 7th, and 8th, 1910.

Mode of access: Internet.

Official report of the proceedings of the first International congress of delegated representatives of master cotton spinners' and manufacturers' associations held at the Tonhalle, Zürich, May 23 to 27, 1904.

Mode of access: Internet.

The fourth International Congress of Delegated Representatives of Master Cotton Spinners' and Manufacturers' Associations, held in the Musikvereinsgebäude, Vienna, May 27th to 29th, 1907.

Mode of access: Internet.

The fifth International congress of delegated representatives of master cotton spinners' and manufacturers' associations, held in the Salle des ingeniéurs [!] civils de France ... Paris, June 1st, 2d & 3d, 1908.

Mode of access: Internet.