INFLORESCENCE PRODUCTION OF BROCCOLI CULTIVARS IN THE HOT AND HUMID CLIMATE OF CENTRAL AMAZONIA1

André Ricardo Morais Dos Santos,Ari Batista Da Costa Júnior,André Luiz Borborema Da Cunha,Daniel Felipe De Oliveira Gentil,Francisco Célio Maia Chaves,Cristiaini Kano

doi:10.1590/1983-21252020v33n106rc

André Ricardo Morais Dos Santos, Ari Batista Da Costa Júnior + Show 4 more

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https://doi.org/10.1590/1983-21252020v33n106rc

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Abstract

ABSTRACT Broccoli has great economic, social, and nutritional importance. Genetic improvements through breeding programs for this species made available cultivars with satisfactory production in hot and humid climates. Two experiments were conducted to evaluate the inflorescence production of broccoli cultivars (Ramoso and Cabeça groups) in the hot and humid climate of Central Amazonia. In experiment 1, Ramoso group cultivars were evaluated (Verão Ramoso Piracicaba, Ramoso Santana, Piracicaba, Piracicaba Precoce, Ramirez F1, Hanabi, Piracicaba Precoce Verão, and Hanapon ). In experiment 2, Cabeça group cultivars were evaluated (Green Storm, Strong, TPX-00925, Salinas F1, Bibou, Domador, Burney, and BRO 68 ). A randomized block experimental design was used, with eight treatments consisted of cultivars, and four replications for each experiment. Quantitative variables were evaluated, including inflorescence fresh and dry weights; and the qualitative variables evaluated showed the occurrence of undesirable characteristics in the inflorescences. Significant differences were found within the Ramoso group cultivars and within the Cabeça group cultivars evaluated. The broccoli cultivars that showed the best inflorescence production in the humid, hot climate of Central Amazonia were Verão Ramoso Piracicaba, Piracicaba Precoce Verão, Ramoso Santana, and Piracicaba Precoce of the Ramoso group; and Green Storm and Burney of the Cabeça group.

Highlights

The species Brassica oleracea var. italica, known as broccoli, is an herbaceous vegetable from the Brassicaceae family
The inflorescence production of broccoli cultivars of the Ramoso and Cabeça groups in the hot and humid conditions of Central Amazonia varied between the different cultivars evaluated, in qualitative and quantitative terms, showing the effect of the genotype of each cultivar (TAN et al, 1999)
Similar results were found by Blind et al (2015), who evaluated the production of broccoli inflorescences of the Ramoso group in Presidente Figueiredo, AM, Brazil, and found number of inflorescences per plant of 28 and 57 for the cultivars Ramoso Piracicaba and Ramoso Santana, respectively; they observed the effect of the cultivar on broccoli yield, denoting the importance of choosing cultivars for commercial crops

Summary

Introduction

The species Brassica oleracea var. italica, known as broccoli, is an herbaceous vegetable from the Brassicaceae family. Italica, known as broccoli, is an herbaceous vegetable from the Brassicaceae family. It comprises two groups: Ramoso, which has several lateral inflorescences; and Cabeça, which has a unique inflorescence. Seed companies have developed open-pollinated and hybrid cultivars with wide adaptation to different climate conditions. These hybrids can be classified as summer or winter hybrid, according to their adaptation to the climate conditions of these seasons (BHERING, 2013). Broccoli production is intended to fresh consumption, minimum processing, and freezing products, which are quick and easy to prepare (TREVISAN, 2013)

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