Broccoli Research Paper

The broccoli cultivars were seeded in 294-cell trays (3.75 × 5.75 × 5 cm) on 2009 August 4.Seedlings were grown in greenhouse until the 2–4 leaf stage, under temperature and humidity controlled conditions.

However, contemporary cultivars are selected for yield, disease resistance, broad adaptation to high input agriculture systems, and increased “shipability” and self-life [2].

Broccoli yield and head quality attributes should be considered in selecting a broccoli cultivar for a commercial production in a certain area.

Hence, broccoli has become the second most important vegetable grown in Extremadura, after processed tomato [5].

A few varieties of broccoli are used in this area and the increasing interest of farmers in this crop makes an agronomic evaluation of a relatively large number of varieties necessary.

The traditional crop in the Vegas Bajas of the Guadiana River (Badajoz, Spain) is the processed tomato, grown from April to August.

Broccoli originally was a cool-season crop that should be considered to have commercial potential as complementary crop cultivated in fall-winter.This trial was conducted in 2009 at the experimental fields of Centro Tecnológico Nacional Agroalimentario of Extremadura, Badajoz, Spain.The alluvial soil has a sandy-loam texture, is slightly acidic, and has a low organic material content.Consumers are becoming more aware of the nutritional value of broccoli and other vegetables [4].For this reason, the demand of broccoli has recently increased.In this sense, cultivar selection is difficult because very little specific information about the plant material is available.Crop varieties in 1950 had been bred to be adapted to specific regions and a relatively low input agriculture system.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.Broccoli has been labeled as the highest nutritional value vegetable, due to its composition of some phytochemical compounds, such as glucosinolates and isothiocyanates, with potential effects on preventing several cancer types and other illnesses [1, 2].Broccoli is an abundant source of nutrients, including provitamin A (β-carotene), vitamin C (ascorbate), and vitamin E (tocopherol) [3].

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