Book ChapterBiodiversity Measures in Agriculture Using DNA by Lucia Vieira Hoffmann, Tereza Cristina de Oliveira Borba, Laísa Nogueira Allem, Paulo Augusto Vianna Barroso and Raquel Neves de Melloin the book "Biodiversity" edited by Adriano Sofo, ISBN 978-953-307-715-4, InTech, October 10, 2011