Efeito Da Qualidade De Luz No Desenvolvimento Da Moringa Sob Telados De Diferentes Cores

Costa, Andreza Ferreira da; Carneiro, Kalline Silveira; Andrade, Henrique Maia de; Uchôa, Keline Sousa Albuquerque

doi:10.12957/ric.2019.39244

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Resultados semelhantes foram obtidos por Ribeiro (2015), o qual não encontrou diferenças no acúmulo de matéria seca em patchouli (Pogostemon cablin) cultivadas sob as telas azul, vermelha, preta e pleno sol. Costa et al (2019) obteve resultados positivos no crescimento de plantas de moringa (Moringa oleifera) cultivadas sob as telas cinza, vermelha, verde, preta e controle, no entanto os incrementos em matéria seca não seguiram a mesma tendência não diferindo entre os tratamentos.…”

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Crescimento e anatomia de \'Begonia Megawatt\' (>i<Begonia x semperflorenscultorum>/i< Hort.) cultivadas sob diferentes telas de sombreamento

Oliveira

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Growth and anatomy of 'Begonia Megawatt' (Begonia x semperflorenscultorum Hort.) cultivated under different shading netsThe production of flowers and ornamental plants requires various technologies to enhance cultivation and ensure the control of meteorological variables, such as solar radiation. In this context, a technology that has been studied is the use of shading nets that provide better conditions for plant cultivation in a protected environment. The objective of this study is to evaluate the effect of using different shading nets on the growth and anatomical structure of two varieties of 'Begonia Megawatt': 'Pink Green' and 'Red Bronze'. The experiment was conducted in a greenhouse using a randomized complete block design with split-plot arrangement. The treatments consisted of combinations of blue, red, black, and control (without netting) representing the main plots, and the varieties 'Pink Green' and 'Red Bronze' representing the subplots. The growth responses were similar for both varieties. With the use of the nets, regardless of color, an increase in leaf area, number of leaves and inflorescences, higher flower and peduncle weight, and dry matter of flowers and peduncles were observed. Moreover, the nets provided a more favorable microclimate for cultivation, resulting in commercially appealing plants. The control treatment did not show significant differences in the analyzed variables, except for a more intense coloration of the tepals. Visually, the blue nets contributed to more compact plants, while the red nets resulted in more robust and vigorous plants. Regarding anatomical aspects, the blue and red nets promoted modifications in stomatal development, with well-developed clusters, larger and more numerous stomata per cluster; in the structure of the leaf blade, with larger and more organized mesophyll tissues and a higher amount of calcium oxalate; and in the roots, with larger and less numerous vessel elements. On the other hand, the control treatment resulted in smaller clusters with fewer stomata per cluster, smaller and disarranged mesophyll tissues, and roots with a higher number of vessel elements, larger area and diameter of the vascular cylinder and xylem. The black net showed intermediate results between the blue, red nets, and the control treatment.

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Section: Resultsunclassified

Crescimento e anatomia de \'Begonia Megawatt\' (>i<Begonia x semperflorenscultorum>/i< Hort.) cultivadas sob diferentes telas de sombreamento

Oliveira

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Pigments in flower stems of lisianthus under different photoselective shade nets

2021

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The lisianthus culture is demanded to produce cut flowers and pot vases, grown in a greenhouse using advanced techniques. The present study aimed to evaluate the pigments of different lisianthus cultivars in different photoselective shade nets. The cultivars Flare Deep Rose (pink), Echo Blue BL (purple) and Allemande White BI (white) were cultivated under light-diffusing polyethylene film cover and blue and red color photoselective nets with a shading capacity of 30%, in addition to the control treatment, without the use of the net. The results showed higher values of chlorophyll b and total in the red photoselective net, independent of the cultivar. Leaf colorimetry showed the most intense shade of green was from the cultivar Echo Blue BL. On the other hand, the control showed more intensity, with no significant difference in the leaf green intensity on the blue and red shade nets. In the petals, the cultivar Echo Blue BL showed a more intense blue shade in the red net, however low grade of anthocyanin than in the blue one. In the anthocyanin pigment, this cultivar had lower levels in the treatment of the red net. The results indicate that the use of photoselective shade nets in the culture of lisianthus changes the content of the pigments studied, in varying intensity, depending on the cultivar.

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Efeito Da Qualidade De Luz No Desenvolvimento Da Moringa Sob Telados De Diferentes Cores

Cited by 2 publications

References 6 publications

Crescimento e anatomia de \'Begonia Megawatt\' (>i<Begonia x semperflorenscultorum>/i< Hort.) cultivadas sob diferentes telas de sombreamento

Crescimento e anatomia de \'Begonia Megawatt\' (>i<Begonia x semperflorenscultorum>/i< Hort.) cultivadas sob diferentes telas de sombreamento

Pigments in flower stems of lisianthus under different photoselective shade nets

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