Production of 'Formosa' Papaya Seedlings in Different Protected Environments and Organic Substrates

Santos, Érica Letícia Leal dos; Silva, Anne Karolyne da; Curi, Thayla Morandi Ridolfi de Carvalho; Costa, Edílson; Jorge, M. H. A.

doi:10.32404/rean.v3i2.1107

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…Besides reducing sunlight direct incidence on plants by shading with a cover, the protected environment can favor microclimate conditions, protect against pests, and decrease evapotranspiration, strengthening seedlings. Studies have demonstrated that plant species interact differently when under certain shading levels, which can provide seedlings of different sizes (Costa et al, 2017;Cruz et al, 2016;Santos et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Use of Benches With Reflective Material to Favor Production of Rubber Tree Rootstock Seedlings

et al. 2021

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Success in production of any perennial tree depends on the use of high-quality seedlings. This study aimed to evaluate cultivation benches with reflective material and protected environments for production of rubber tree rootstock seedlings. The experiments were conducted in two types of protected environments: 35% shading aluminized screen and 30% shading black screen. Cultivation benches with and without reflective material were tested inside the protected environments. A completely randomized design with 7 replications and 5 seedlings per plot was adopted for each environment, and the environments were compared by joint analysis. Solar radiation (global and photosynthetically active) was the most influencing micrometeorological factor on plant environment and plant growth differentiation. Regardless of the environment, the use of reflective material in cultivation bench had a positive effect on production of rubber rootstock seedling (clone GT1), providing seedlings with a robust root system and better quality. The use of reflective material also improved rubber tree rootstock seedlings (clone GT1) grown in the black screen environment.

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Section: Introductionmentioning

confidence: 99%

Use of Benches With Reflective Material to Favor Production of Rubber Tree Rootstock Seedlings

et al. 2021

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“…En un período de menor precipitación, la caseta agrícola con pantallas negras y aluminizadas, en comparación con el invernadero agrícola con película de polietileno, proporciona a las plántulas de papaya del grupo 'Sunrise solo' con mayor altura y número de hojas (Costa et al, 2010), y plántulas de mayor calidad para el grupo 'Formosa' (Santos et al, 2016) y mayor materia seca en una caseta agrícola con pantalla de aluminio para el grupo 'Sunrise solo' (Costa et al, 2009). En períodos de mayor precipitación, el invernadero, en comparación con las pantallas, permite plantas más grandes con mayor número de hojas (Costa et al, 2011).…”

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Reflective material on cultivation benches and rice straw over the substrate in papaya seedling production

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et al. 2020

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Improving environmental conditions in the production of seedlings by expanding the distribution of photosynthetically active radiation in abaxial leaves and protecting the substrate with straw can promote the production of higher quality seedlings. This study aimed to evaluate the reflective materials over the cultivation bench and the use of rice straw over the substrate in the formation of papaya seedlings of the group ‘Formosa’. The joint analysis was performed considering a completely randomized experimental design in a 3 x 2 factorial scheme, with five replications and six seedlings per plot. The use of aluminized screen (Aluminet®) and aluminum foil with an area of 1 m x 1.2 m as reflective material on the cultivation bench and treatment without reflective material were evaluated. Also, the presence and absence of a rice straw layer with 5 cm height, as covering over the substrate were evaluated. In the benches with aluminum foil and without reflective material, the seedling production without rice straw over the substrate provided papaya seedlings of higher quality than the rice straw over the substrate. The aluminum foil produced high-quality papaya seedlings in the treatments with rice straw over the substrate. The aluminized screen on the cultivation bench was not favorable for the papaya seedlings production.

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“…Many factors can affect seedling quality especially the conditions under which they are produced and the substrate source (Santos et al, 2018). According to Terra et al (2011) and Santos et al, (2016), the ideal substrate for seedling production must have a good structure, allowing aeration, water availability and nutrient retention, adequate pH, pathogens free and stimulation of the high dry weight content production in both the aerial and root parts. Besides the physical, chemical and sanitary characteristics of substrates, cost/benefit ratio, availability in the market and handling must be taken into account (Silva et al, 2011;Ahmed et al, 2013;Dahmardeh, 2013).…”

Section: Introductionmentioning

confidence: 99%

Development of papaya tree in organic substrates

et al. 2019

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Papaya is a tropical fruit of great importance in the international and national market. For crop success, the use of quality seedlings is of paramount importance and substrates formulated from organic sources may be a viable alternative. In this context, the objective of this study was to evaluate the initial development of papaya seedlings in different formulations and levels of organic substrates. A completely randomized design was used in a 4x4+1 factorial scheme, corresponding to four substrate formulations, containing decomposed buriti stem (CDB). The treatments included of the following: (CDB, ½ CDB + ½ poultry manure, ½ CDB + ½ cattle manure and ½ CDB + ½ gray with plant origin sourced from materials resulting from the burning of plant material (stem, branches); four proportion levels of the formulations of the substrates mixed to the soil (25; 50; 75 and 100%) and the additional control (100% soil). The following variables were measured: plant height, leaf area, number of leaves, shoot dry matter, root length and root dry matter at 42 days of seedling cultivation. The results showed that use of an ideal source of organic matter is feasible in the production of papaya seedlings. The substrate consisting of CBD + poultry manure had great potential to be used in the production of papaya seedlings.

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Production of 'Formosa' Papaya Seedlings in Different Protected Environments and Organic Substrates

Cited by 3 publications

References 9 publications

Use of Benches With Reflective Material to Favor Production of Rubber Tree Rootstock Seedlings

Use of Benches With Reflective Material to Favor Production of Rubber Tree Rootstock Seedlings

Reflective material on cultivation benches and rice straw over the substrate in papaya seedling production

Development of papaya tree in organic substrates

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