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International Journal of Agronomy
Volume 2017, Article ID 8216390, 6 pages
https://doi.org/10.1155/2017/8216390
Research Article

Characteristics Defining Broccoli Cultivars from Different Seed Producers

1Área de Agricultura, Centro Tecnológico Nacional Agroalimentario Extremadura (CTAEX), 06195 Villafranco del Guadiana, Badajoz, Spain
2Departamento de Genómica y Postcosecha, Instituto Valenciano de Investigaciones Agrarias (IVIA), Moncada, 46113 Valencia, Spain
3Departamento de Hortofruticultura, Centro de Investigación “La Orden-Valdesequera” (CICYTEX), Junta de Extremadura, Guadajira, 06187 Badajoz, Spain
4Departamento de Biología Vegetal, Ecología y Ciencias de la Tierra, Universidad de Extremadura, 06071 Badajoz, Spain

Correspondence should be addressed to Julio Salguero; se.xenu@oreuglas

Received 6 March 2017; Accepted 24 July 2017; Published 28 August 2017

Academic Editor: Chandrakanth Emani

Copyright © 2017 Elena Ordiales et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Broccoli (Brassica oleracea L. var. italica) is currently considered a main vegetable food in the markets due to its high nutritional value, containing elevated levels of phytochemicals widely described to have beneficial effects against cancer and other illnesses. Broccoli is an interesting crop with a high commercial value because it complements the tomato industry, the main agricultural income in Badajoz, Spain. Nine varieties of broccoli from four nurseries were evaluated by analyzing both agronomic and quality parameters. Total yield and number of harvests were monitored. Parameters defining quality like diameter, weight, and height of the heads were determined. Granulometry, compactness, and the presence of internal leaves in the heads were also analyzed. Diameter and height of sprouts were complementarily estimated. Principal component analysis was further employed to investigate the relationship between the agronomic variables and the cultivars and nurseries. Results revealed that both first and second principal components explained more than 75% of the variance and grouped data according their cultivar and commercial origin. Additionally, correlations between the scores of those components and the values of the phenotypic parameters suggested that head weights are main determinants of the phenotypic differences observed among the cultivars whereas the presence of internal leaves and granulometry and head weight appear to be key traits defining nurseries.