Ebb-and-Flow Subirrigation Improves Seedling Growth and Root Morphology of Tomato by Influencing Root-Softening Enzymes and Transcript Profiling of Related Genes

Wang, Kelei; Ali, Muhammad Moaaz; Pan, Keke; Su, Shiwen; Xu, Jian; Chen, Faxing

doi:10.3390/agronomy12020494

Cited by 6 publications

(5 citation statements)

References 81 publications

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“…Tomatoes are produced in Pakistan over an area of 58,359 hectares, with an average yearly yield of 550,979 tonnes 3 , 4 . Tomatoes may be grown in a wide range of climates, although they face a variety of abiotic stresses, including high temperatures 5 – 7 .…”

Section: Introductionmentioning

confidence: 99%

Heat stress mitigation in tomato (Solanum lycopersicum L.) through foliar application of gibberellic acid

Guo

Gull

Ali

et al. 2022

Sci Rep

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Phytohormones mediate physiological, morphological, and enzymatic responses and are important regulators of plant growth and development at different stages. Even though temperature is one of the most important abiotic stressors for plant development and production, a spike in the temperature may have disastrous repercussions for crop performance. Physiology and growth of two tomato genotypes ('Ahmar' and 'Roma') were studied in two growth chambers (25 and 45 °C) when gibberellic acid (GA3) was applied exogenously. After the 45 days of planting, tomato plants were sprayed with GA3 at concentrations of 25, 50, 75, and 100 mg L−1, whereas untreated plants were kept as control. Under both temperature conditions, shoot and root biomass was greatest in 'Roma' plants receiving 75 mg L−1 GA3, followed by 50 mg L−1 GA3. Maximum CO2 index, photosynthetic rate, transpiration rate, and greenness index were recorded in 'Roma' plants cultivated at 25 °C, demonstrating good effects of GA3 on tomato physiology. Likewise, GA3 enhanced the proline, nitrogen, phosphorus, and potassium levels in the leaves of both genotypes at both temperatures. Foliar-sprayed GA3 up to 100 mg L−1 alleviated the oxidative stress, as inferred from the lower concentrations of MDA and H2O2, and boosted the activities of superoxide dismutase, peroxidase, catalase. The difference between control and GA3-treated heat-stressed plants suggests that GA3 may have a function in mitigating heat stress. Overall, our findings indicate that 75 mg L−1 of GA3 is the optimal dosage to reduce heat stress in tomatoes and improve their morphological, physiological, and biochemical characteristics.

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Section: Introductionmentioning

confidence: 99%

Heat stress mitigation in tomato (Solanum lycopersicum L.) through foliar application of gibberellic acid

Guo

Gull

Ali

et al. 2022

Sci Rep

Self Cite

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“…The contrasting responses to the sub-irrigation could be due to each plant species' tolerance to high EC and the specific demand for nutrients [4,31]. In our study, the decrease in fruit According to Wang et al [36] the ebb and flow sub-irrigation technique is a promising strategy to promote the growth of vegetable crops. Our results concur with that statement, as they showed that tomatoes may be grown under sub-irrigation with no detrimental effects on fruit yield as long as the EC of the nutrient solution does not exceed 2.0 dS m −1 .…”

Section: Fruit Yieldmentioning

confidence: 62%

“…Horticulturae 2023, 9, x FOR PEER REVIEW 6 of 15 et al [26] indicated that if the concentration of nutrients or the EC in the nutrient solution exceeds the optimal range, it reduces the growth and yield of plants in closed hydroponic systems as they are under more severe osmotic conditions. According to Wang et al [36] the ebb and flow sub-irrigation technique is a promising strategy to promote the growth of vegetable crops. Our results concur with that statement, as they showed that tomatoes may be grown under sub-irrigation with no detrimental effects on fruit yield as long as the EC of the nutrient solution does not exceed 2.0 dS m −1 .…”

Section: Fruit Yieldmentioning

confidence: 99%

Nutrient Solution Electrical Conductivity Affects Yield and Growth of Sub-Irrigated Tomatoes

et al. 2023

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Sub-irrigation of greenhouse crops has the potential to increase water and nutrient use efficiency; however, fertilizer salts that are not absorbed by the plants tend to accumulate in the substrate and eventually raise the substrate’s electrical conductivity (EC). The objective of this study was to determine the optimum EC of the nutrient solution in sub-irrigated tomatoes to allow maximum yield. Total fruit yield was higher in sub-irrigated plants with solutions at 2.0 dS m−1 (5105 g per plant), and it was comparable to that obtained for drip-irrigated plants (4903 g per plant); however, the yield of fruits from the second truss was 37% higher in sub-irrigated than in drip-irrigated plants when the EC was 2.0 dS m−1. In contrast, at the end of the growing season, the yield of plants sub-irrigated with nutrient solutions of 2.0 dS m−1 was the lowest, being surpassed by 37% by that of plants treated with 1.4 dS m−1. The dry weight of vegetative plant parts was reduced in sub-irrigated plants, suggesting a shift in dry mass partitioning. Our results show that with sub-irrigation, the growing season should be started using nutrient solutions with higher EC, but eventually, this EC should be decreased to maintain proper substrate EC and high yield.

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“…The use of photovoltaic systems to power irrigation systems operating in areas remote from electricity grids is not a new topic. It has been addressed many times in the pages of various journals [KHAN 2012;MUHAMMAD et al 2014;WANG et al 2022]. However, the authors of these works did not pay special attention to the quality of the energy used to power the pumps.…”

Section: Resultsmentioning

confidence: 99%

Journal of Water and Land Development

2022

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Water scarcity is a phenomenon that is occurring more and more frequently in larger areas of Europe. As a result of drought, there are significant drops in yields. As demand for food continues to rise, it is becoming necessary to bring about a substantial increase in crop production. The best solution to water scarcity appears to be irrigation for crops that are particularly sensitive to drought. Today, many technical solutions are used to supply and distribute water to crops. The optimal solution is drip irrigation, which makes it possible to deliver water directly to the plant root system to save melting freshwater resources. In the article special attention was paid to methods of supplying electricity to power irrigation pumps. The analysis was made for areas with a significant distance between the agricultural land and the urbanised area (which has water and electricity). The authors have selected the parameters of an off-grid photovoltaic mini-hydropower plant with energy storage (with a power of 1.36 kW). An analysis was made of the profitability of such an investment and a comparison with other types of power supply. Based on the performed calculations, a prototype power supply system equipped with photovoltaic panels was made to show the real performance of the proposed system. The tests carried out showed that the irrigation pump will be powered most of the time with a voltage whose parameters will be very close to the nominal ones.

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Ebb-and-Flow Subirrigation Improves Seedling Growth and Root Morphology of Tomato by Influencing Root-Softening Enzymes and Transcript Profiling of Related Genes

Cited by 6 publications

References 81 publications

Heat stress mitigation in tomato (Solanum lycopersicum L.) through foliar application of gibberellic acid

Heat stress mitigation in tomato (Solanum lycopersicum L.) through foliar application of gibberellic acid

Nutrient Solution Electrical Conductivity Affects Yield and Growth of Sub-Irrigated Tomatoes

Journal of Water and Land Development

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