Abstract
Lysianthus cultivation is a recent activity when compared to the main cut flowers, and little is known about the techniques and the use of shading screens that can increase productivity in floriculture, resulting in favorable morphophysiological responses to the crop. The objective of this study was to verify whether shading screens impact the growth performance of lisianthus varieties. The experiment was carried out in a greenhouse in São Benedito farm, located in São Benedito, Ceará. The varieties studied were Lisianthus ABC 2-3 Blue, Lisianthus Allemade White and Lisianthus ABC 2-3 Rose, and three environments, one with aluminized screen (AS), one with red screen (RS) and the third environment without screen shading (WS). The experimental design was completely randomized in a 3 x 3 factorial scheme, with three environments and three varieties with three replications. The following were analyzed in cm: button diameter (BD); rod height (RH); actual size (AS); commercial size (CS); rod thickness (RT); and by counting, the number of buttons per stem (BS). The blue variety was better adapted to the conditions imposed by the AS environment, the rose variety presented the best results in the WS environment and the white variety, under the conditions of the experiment, would be unsuitable for the crop cultivation. The RS environment does not offer conditions conducive to satisfactory growth in rod size. Lysianthus cultivation is influenced by the use of shading screens.
Highlights
Lisianthus (Eustoma grandiflorum) is an ornamental plant in the Gentinaceae family and is native to the southern United States (BACKES et al, 2005)
Lysianthus cultivation is a recent activity when compared to the main cut flowers, and little is known about the techniques and the use of shading screens that can increase productivity in floriculture, resulting in favorable morphophysiological responses to the crop
The crop has a cycle divided into two stages, in the first stage, which lasts an average of three months, is when the seeds germinate.In this, the plant develops in the form of a rosette, until four pairs of fully formed leaves are reached
Summary
Lisianthus (Eustoma grandiflorum) is an ornamental plant in the Gentinaceae family and is native to the southern United States (BACKES et al, 2005). The great popularity of lisianthus in the national market is attributed to its varied morphology, being able to present simple or folded flowers, with varied and bicolor tones, besides presenting long durability and easy handling (LEITE, 2006). The crop has a cycle divided into two stages, in the first stage, which lasts an average of three months, is when the seeds germinate.In this, the plant develops in the form of a rosette, until four pairs of fully formed leaves are reached. The second stage, after the first three months, is characterized by the elongation of the stem, the formation of new leaves and the beginning of flowering. With cycles that last from three to six months and characterize varieties with early, medium and late cycles (BACKES, 2004)
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