Stomata opening and productiveness response of fresh market tomato under different irrigation intervals

Fara, Sorotori Jacob; Delazari, Fábio Teixeira; Gomes, Ronaldo Silva; Araújo, Wagner L.; Silva, Derly José Henriques da

doi:10.1016/j.scienta.2019.05.025

Cited by 12 publications

(21 citation statements)

References 27 publications

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“…Earlier studies revealed that stomatal regulation is controlled through chemical signals from plant roots to the leaves, exposing plant roots to drying cycles [36]. Other mechanisms controlling stomatal aperture include hydraulic signals [37], water balance, leaf area and root system length reduction [38].…”

Section: Morphological Parametersmentioning

confidence: 99%

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Oliveira¹,

Campos²,

Mesquita

et al. 2021

Water

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Precision irrigation is essential to improve water use efficiency (WUE), defined as the amount of biomass produced per unit of water used by plants. Our objective is to evaluate the effect of different soil volumetric water content (VWC) in plant growth, fruit yield, quality, and WUE of cherry tomatoes grown in a greenhouse. We tested four VWC thresholds (0.23, 0.30, 0.37, and 0.44 m3 m−3) to trigger a drip irrigation system in two tomato cultivars (‘Sweet Heaven’ and ‘Mascot F1′). The experiment was arranged in a split-plot design with four replications. We used capacitance sensors connected to an open-source, low-cost platform to monitor and control the irrigation in real-time based on demand. Plants were watered every time the soil VWC dropped below the set thresholds. The treatment with VWC 0.44 m3 m−3 resulted in the highest fruit yield, with 102.10% higher WUE when compared to the VWC 0.23 m3 m−3 in both cultivars. Fruit quality traits such as longitudinal and equatorial diameter increased asymptotically with soil water content. In contrast, treatments with deficit irrigation increased the fruit soluble solids by 15.73% in both cultivars. These results strongly suggest that accurate control of the soil VWC is essential to modulate the fruit yield and quality attributes in tomatoes produced in the greenhouse.

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Section: Morphological Parametersmentioning

confidence: 99%

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Oliveira¹,

Campos²,

Mesquita

et al. 2021

Water

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“…Irrigation frequency and planting density significantly influence the biometric and physiological traits of plants [26] and the grain's quality [25]. Usually, water deficit greatly affects the biometric traits of beans [12].…”

Section: Discussionmentioning

confidence: 99%

“…F3 had higher numbers of pods per plant and seeds per pod than F2. Possibly, increasing the irrigation interval may have stimulated greater root growth followed by greater photosynthetic efficiency and carboxylation, which leads to a higher yield [26]. In legumes, the most sensitive stage to water stress is the reproductive stage, in which a lack of water during the flowering phase, pod formation, and grain filling can cause abscission of flowers and young pods [32].…”

Section: Discussionmentioning

confidence: 99%

Impact of Irrigation Frequency and Planting Density on Bean’s Morpho-Physiological and Productive Traits

Souza

Vieira

Farias

et al. 2020

Water

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The correct irrigation frequency relies on the plant population density to increase yield and efficiency in water use. A field experiment was carried out in 2019 to study the effect of three irrigation frequencies, one (F1), four (F2), and eight (F3) days, and four planting densities, 20 (D1), 24 (D2), 28 (D3), and 30 (D4) plants per m2, on the variables: soil moisture, actual water consumption, growth, grain yield, and water productivity of beans (Phaseolus vulgaris L.). The soil water balance was calculated based on the soil moisture, which was measured by tensiometers. The irrigation was done by a drip tape. The variation in soil moisture was greatly influenced by irrigation frequencies and planting densities in F3. Plant growth was not affected by treatments. Irrigation frequencies and planting densities have deeply affected the biometric and chlorophyll synthesis traits of beans. The highest yields were found in the treatments F1D3 (2968 kg ha−1), F1D4 (2997 kg ha−1), and F3D3 (2946 kg ha−1). For water productivity, treatments with F1 irrigation frequency and the higher planting densities were more efficient in water use. Overall, the results are useful for technicians and farmers who work with irrigation management on beans.

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“…According to [4], several factors influence the opening and closing of stomata, including light intensity, temperature, RH, carbon dioxide, and soil water content. Many researches on the analysis of stomata openings have been carried out, including [5][6] [7][8] [9]. However, there needs to be a thorough study of the factors that affect stomatal opening.…”

Section: Introductionmentioning

confidence: 99%

Application of Machine Learning to Study Effect of Environmental Manipulation in Frame of Smart Agriculture on the Stomata of Capsicum annuum

Putra

Sutiarso

Nugroho

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Red chili (Capsicum Annuum) is a horticultural crop with high economic value and is one of the commodities contributing to inflation. This study aimed to explore the effect of environment manipulation on the number and the size of the stomata pore of red chili leaves. The study was conducted in screen house size 60 m2. Chili plants 95 days old were cultivated in the polybag and the stomata were measured 60 days after planting. Microclimate condition was recorded using automatic weather equipment. The crop water requirements were calculated using Penman-Monteith based on microclimate data. The stomata of leaves were observed in laboratory using by using a microscope mounted with an Opti-lab 2.2 camera. The Artificial Neural Network was applied to understand the role of microclimate parameters on stomata. The results showed that the average ETc value was 5.06 mm/day. The difference in ETc values occurs due to differences in plant coefficient values and climatic conditions in the study area and the seasons in the region. The largest porous stomata area was found in the afternoon, which is 144.88 µm2. The highest stomatal density the morning and afternoon between 284.94 mm-2-330.541 mm-2. The algorithm multilayer perception test revealed that the light factor was the most significant influence on the stomatal response of 0.463 (100%), followed by the humidity factor of 0.260 (56.1%). Other factors are under 50%.

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Stomata opening and productiveness response of fresh market tomato under different irrigation intervals

Cited by 12 publications

References 27 publications

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Horticultural Performance of Greenhouse Cherry Tomatoes Irrigated Automatically Based on Soil Moisture Sensor Readings

Impact of Irrigation Frequency and Planting Density on Bean’s Morpho-Physiological and Productive Traits

Application of Machine Learning to Study Effect of Environmental Manipulation in Frame of Smart Agriculture on the Stomata of Capsicum annuum

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