Qualidade De Mudas De Olerícolas Baseada Em Parâmetros De Crescimento E Influência De Biochar

Lima, Stefany Lorrayny; Couto, Charlismilã Amorim do; Souza, Eli Regina Barboza de; Marimon, Ben Hur

doi:10.37951/2595-6906.2019v3i1.3061

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…The shoot dry matter, root dry matter, total dry matter, seedling height, and stem diameter are fundamental to evaluate the quality of seedlings, resulting in the index known as DQI -Dickson Quality Index (Dickson et al, 1960). Although the index was developed using forest species, Lima et al (2019), evaluating eggplant seedlings of the Comprida Roxa cultivar, claim that the DQI has a significant and positive correlation with the growth responses evidenced in this vegetable.…”

Section: Resultsmentioning

confidence: 99%

Use of Nanocomposite Hydrogel With N-Urea in the Production of Eggplant Seedlings

Salles

Jorge

Costa

et al. 2020

Rev. Agric. Neotrop.

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The use of quality seedlings of eggplant is directly related to the success of their production, with polymers added to the substrate, which work as water conditioners, increase the water retention capacity, and provide better seedling quality. The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3) commercial substrate with 0.075g of hydrogel and 10% N-urea/15 mL of a substrate; 4) commercial substrate with 0.075g of hydrogel and 20% N-urea/15 mL of a substrate, and 5) commercial substrate with 0.075g of hydrogel and 40% N-urea/15 mL of a substrate. The experiment was conducted with four replications of 25 seedlings. The emergence speed index, percentage of emergence, height, number of leaves, stem diameter, shoot dry matter, root dry matter, and total dry matter were evaluated, as well as the Dickson Quality Index. The data were subjected to analysis of variance (SPEEDSTAT statistical software) and grouping test of means. A regression analysis was performed to adjust equations for some of the variables. The best seedlings can be obtained using the dosage of 28.83% N-urea with 0.075g of hydrogel per 15 ml of the substrate, according to the DQI adjustment, which includes several traits of the seedlings, thus reflecting on its quality.

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Section: Resultsmentioning

confidence: 99%

Use of Nanocomposite Hydrogel With N-Urea in the Production of Eggplant Seedlings

Salles

Jorge

Costa

et al. 2020

Rev. Agric. Neotrop.

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Seedling biometrics and relationship with yield of physalis

Machado,

Cecílio Filho,

Mendonça

et al. 2024

Rev. Caatinga

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Physalis angulata has fruits rich in vitamins A and C, phosphorus, iron and antioxidant substances, while its leaves and roots have physalins, of high pharmacological potential. However, its cultivation is recent and there is a lack of technical knowledge. Characteristics of the seedling determine its vigor and the time of transplantation, which affect the performance of the crop in the field and, consequently, its yield. Therefore, the objective of this study was to know the influence of seedling height and stem diameter on the yield of P. angulata, defining the standard for transplantation and the time of permanence in the nursery. To obtain biometric characteristics, P. angulata was sown every four days and the seedlings were transplanted on April 6, 2022, at 22, 26, 30, 34 and 38 days after sowing. Descriptive analyses of the seedlings in the nursery were performed, with evaluations at 14, 18, 22, 26, 30, 34 and 38 days after sowing. To assess the performance of seedlings in the field, the 300 seedlings of different sizes transplanted were evaluated for survival and number of fruits per plant (< 150; 150 to < 200; 200 to < 250 and ≥ 250 fruits). For more productive plants (≥ 200 fruits), P. angulata seedlings should remain in the nursery for 38 days after sowing, when they will have at least 12.8 cm in height and 4.2 cm in stem diameter.

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Qualidade De Mudas De Olerícolas Baseada Em Parâmetros De Crescimento E Influência De Biochar

Cited by 2 publications

References 13 publications

Use of Nanocomposite Hydrogel With N-Urea in the Production of Eggplant Seedlings

Use of Nanocomposite Hydrogel With N-Urea in the Production of Eggplant Seedlings

Seedling biometrics and relationship with yield of physalis

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