Growth and vase life of gladiolus plants cultivated under different conditions in the semi-arid region of Brazil

Lady Daiane Costa De Sousa,Thieres George Freire Da Silva,Agda Raiany Mota Dos Santos,Kelem Silva Fonseca,Adriano Do Nascimento Simões,Lucas Vinicius Pierre De Andrada,Jheizon Feitoza Do Nascimento Souza,Patrícia Lopes Moreira Feitosa Apolinário,Luzia Ferreira Da Silva

doi:10.1590/2447-536x.v27i3.2364

Lady Daiane Costa De Sousa, Thieres George Freire Da Silva + Show 7 more

Open Access

https://doi.org/10.1590/2447-536x.v27i3.2364

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Abstract

Abstract Cultivation conditions are determining factors that affect the quality of cut flowers. The objective of this study was to evaluate the vegetative growth, flowering and vase life of commercial gladiolus cultivars under different shading conditions in the Brazilian semi-arid region. Two cultivars of gladiolus (Jester and Rose Friendship) were grown under two conditions: full sun and 70% shade. Biometrics were evaluated 60 days after planting and the growth rate of the crop was evaluated at 15-30, 30-45 and 45-60 days for the variables: number of tillers, stem diameter, number of leaves and plant height. After 45 days, the fresh weight, dry weight and total relative water content of the area and root parts of the plants were evaluated. After the harvest, the stems were kept at a temperature of 22±3 °C and relative humidity (RH) of 60%. Visual assessment, pH of the solution, variation in the volume of water and loss of fresh mass were measured every two days. Cultivation with 70% shading resulted in greater accumulation of biomass in the aerial part of gladiolus plants, greater neck diameter and height. The Rose Friendship cultivar underwent a greater translocation of dry matter to the aerial part of the plants, resulting in greater height. On the other hand, the gladiolus stems from cultivation under full sun conditions resulted in longer vase life, 10 days under conservation conditions at 22±3 °C and RH 60%.

Highlights

Ornamental floriculture is one of the sectors of Brazilian agribusiness that has developed greatly in recent years
Growth and flowering of cultivars of gladiolus under different shade conditions There was no interaction effect between the factors studied for dry mass of the aerial part (DMAP), fresh mass of the aerial part (FMAP), CH2OAP, dry mass of the bulb (DMB), fresh mass of the bulb (FMB), CH2OB, pDM‐AP and pDM-B
As for the mass partition, there was a greater accumulation of dry mass in the aerial part of those plants cultivated in the shade (Table 3)

Summary

Introduction

Ornamental floriculture is one of the sectors of Brazilian agribusiness that has developed greatly in recent years. 6% per year (Junqueira and Peetz, 2018). Cut flowers from the genus Gladiolus are among the five main cut flowers marketed in Brazil (Junqueira and Peetz, 2018). The palmof-Santa-Rita (Gladiolus x grandiflorus L.), known as gladiolus, is an herbaceous plant belonging to the Iridaceae family It presents inflorescences of different colors and is. V. 27, No 3, 2021 p.398-407 used in ornamental gardens, bouquets and vases (Memon et al, 2013). This makes it an important species for the flower trade in Brazil (Memon et al, 2013)

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