Biometry and Essential Oil of Oregano Grown Under Different Water Depths and Organic Fertilizer Doses in a Protected Environment

Saath, Reni; Wenneck, Gustavo Soares; Rezende, Roberto Sanches; Santi, Danilo César; Araújo, Larissa Leite de

doi:10.1590/1809-4430-eng.agric.v42n5e20220027/2022

Cited by 4 publications

(8 citation statements)

References 26 publications

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“…Although studies with controlled water deficit demonstrate productive persistence in terms of yield at some stressinduced levels (Terassi et al, 2021;Saath et al, 2022), it must be considered that water management is capable of altering quality as well (Mediyouni et al, 2021) and the final composition of vegetables (Soares- . In this sense, associated practices are necessary to mitigate the effect of water stress on tomato quality and yield (Abdallah, 2019;Zhang et al, 2021) and improvement in gas exchange (Wenneck et al, 2023a).…”

Section: Resultsmentioning

confidence: 99%

“…The presence of water deficit in plant development is a naturally avoided condition, especially in irrigated agriculture. However, the existence of reduced water availability in the soil for plants occurs naturally and temporarily, related to soil drying between irrigations (Ishfaq et al, 2020), and in an induced way when performing water management with controlled deficit, aiming to increase the efficiency of resource use (Terassi et al, 2021, Saath et al, 2022. Normally, the plant response to different water conditions during development is based on crop yield, with the assessment of gas exchanges analyzed only occasionally, when evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Gas Exchange in Tomato under Different Water Management in Cultivation

Wenneck,

Saath,

Rezende

et al. 2023

JSD

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The water management in the tomato crop has a direct effect on the development and yield, however the gas exchange rates of the plant can be influenced by the management and evaluation period. The study aimed to analyze gas exchange in tomato, in full production, in plants cultivated under different water management. The experiment was conducted in a completely randomized design with two water conditions during cultivation (with deficit and without deficit). The management of the water deficit adopted using different depths of water replacement, under water deficit the replacement of 60% of the crop evapotranspiration (ETc) was carried out while in the condition without deficit there was replacement of 100% of the ETc. The determination of gas exchanges, in a period with full production, was performed at 70 and 71 days after transplanting, determining photosynthesis (A), stomatal conductance (Gs), internal CO2 (Ci) and transpiration (E). From the A/E ratio, the intrinsic water use efficiency (iWUE) was calculated. The data were submitted to analysis of variances and the means compared by the Tukey test with 5% of significance. There is significant variation in gas exchange rates depending on the water management adopted and evaluation period. Water deficit has a cumulative effect on plants. Tomato plants cultivated with water deficit (60% of ETc) have lower rates of gas exchange, with no full recovery of rates even after irrigation. Tomato plants grown without water deficit (100% of ETc) show adaptation and compensation in gas exchange due to soil drying.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gas Exchange in Tomato under Different Water Management in Cultivation

Wenneck,

Saath,

Rezende

et al. 2023

JSD

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“…Various techniques and management tools can be employed to alleviate the impacts of water stress on plants. These encompass controlled water restriction during less sensitive stages (Terassi et al, 2021), the interval between water replacements (Santos et al, 2021), nutritional management (Saath et al, 2022), and the application of beneficial elements (Lozano et al, 2018;Hachmann et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Performance of tomato grown under different water replacement depths and silicon application forms

Wenneck,

Saath,

Rezende

et al. 2024

Sem. Ci. Agr.

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Water management has a direct impact on plant development, and under deficit conditions, it often results in reduced yields. Silicon (Si), however, has the potential to alleviate stress and enhance plant performance under unfavorable conditions. This study aimed to analyze the performance of tomato plants cultivated under different water replacement depths and forms of silicon application. The experiment was laid out in a completely randomized design with a 2 × 4 factorial arrangement represented by two water replacement depths (60% and 100% of crop evapotranspiration - ETc) and four forms of silicon application (without application, soil application - full dose, soil application - split dose, and foliar applications). Four replications were used. The plants were cultivated in a protected environment using drip irrigation for water replacement, and silicon oxide served as the source of the element. The analyzed parameters included daily evapotranspiration, leaf spectral reflectance, mass accumulation (root, stem, and leaf), yield indices (fruit weight, plant yield, and defective fruits), water productivity, and post-harvest fruit weight loss. The imposition of water deficit (60% of ETc) in tomato leads to reduced crop development and yield, with the effects partially mitigated by the application of silicon. Conversely, under conditions of adequate water replacement (100% of ETc), silicon application contributes to increased development and yield of tomato. The application of silicon in the soil, whether in a full or split dose, demonstrates a more favorable response in vegetative indices and yield for tomato.

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“…Water management in cultivation has a direct impact on plant water potential, gas exchange, photosynthetic efficiency and mass accumulation (Wenneck et al, 2021;Andrian et al, 2022). Oregano grown under water deficit conditions presents a significant reduction in development and yield (Saath et al 2022;Santi, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…High quality soils can favor plant development, even under adverse conditions. In this sense, the application of organic compounds, such as bokashi, can contribute to physical and biological aspects, in addition to providing nutrients (Lopes Pereira et al, 2022), resulting in an increase in crop yield (Saath et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

SPAD Index in Oregano Crop: A Proposal for Interpretation Ranges

Wenneck,

Saath,

Pereira

et al. 2023

JSD

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The analysis of non-destructive variables in plants, such as the SPAD index, shows a growing trend of adoption in the field. However, it is necessary to determine comparative reference standards, aiming to assist in the interpretation of results obtained in the field and in making decisions about the management to be adopted. The study aimed to propose levels of interpretation of the SPAD index in oregano leaves based on the yield of the crop. The experiment was conducted in protected environment, randomized blocks design was adopted with four replications in 6 x 4 factorial scheme: six levels of water replacement (60, 70, 80, 90, 100, and 110% of the crop evapotranspiration-ETc) and four doses of bokashi (0, 100, 200, and 300 g m-2). For analysis, the data were subjected to variance analysis, multivariate analysis, regression and correlation. Productive management (water replacement and bokashi dose) influences the SPAD index response. Through mathematical analysis of the relationship between SPAD index and relative yield, the sufficiency ranges based on the SPAD index were determined in very low (<37) low (37-44), medium (44-46) and high (>46). The proposed classification of the sufficiency range for the SPAD index allows advances in the productive management of the oregano crop.

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Biometry and Essential Oil of Oregano Grown Under Different Water Depths and Organic Fertilizer Doses in a Protected Environment

Cited by 4 publications

References 26 publications

Gas Exchange in Tomato under Different Water Management in Cultivation

Gas Exchange in Tomato under Different Water Management in Cultivation

Performance of tomato grown under different water replacement depths and silicon application forms

SPAD Index in Oregano Crop: A Proposal for Interpretation Ranges

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