Variation of seed germination response to temperature in tomato landraces: An adaptation strategy to environmental conditions

Sousaraei, Naeimeh; Torabi, Benjamin; Mashaiekhi, Kambiz; Soltani, Elias; Mousavizadeh, Seyyed Javad

doi:10.1016/j.scienta.2021.109987

Cited by 7 publications

(7 citation statements)

References 38 publications

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“…The T b values varied among landraces with a range of only 1.6 • C (Table 2). However, the T b values are similar to T b of 12-13.5 • C reported for other tomato cultivars by Cheng and Bradford [45], 6-10 • C by Jones [46], and 7.7-9.9 • C by Sousaraei et al [47]. The optimum and ceiling temperatures estimated in the present study were consistent with an optimum temperature of 25.5-29.5 • C, and the ceiling temperature of 35 • C was reported for tomatoes [48].…”

Section: Discussionsupporting

confidence: 87%

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

Sousaraei

Torabi

Soltani

et al. 2022

Seeds

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This study aims to quantify the seed germination response of six tomato landraces to temperature; predict future climate changes relative to the baseline period (1980–2009) for studied locations in the courses of near-term (2010–2039) and mid-term (2040–2069) under two representative concentration pathways (RCP 4.5 and 8.5); assess the impact of future climate change on the final germination percentage (FGP) and time to reach 50% germination (D50) in the studied landraces. The results show that FGP is zero at 10 °C, reaches the highest value at 15–35 °C, and ceases at 36–40 °C for all landraces. The results also demonstrate that the temperature increment is 0.8–1.3 °C and 1.5–2.7 °C in the near- and mid-term, respectively, under RCP 4.5; further, this increment is 0.9–1.9 °C for the near-term and 2.3–3.4 °C for the mid-term under RCP 8.5. It estimates that the D50 takes 2.5 to 3.8 days among the locations in the baseline course. In the near term, the D50 would be 2.2 to 3.4 days under RCP 4.5 and 2.1 to 3.3 days under RCP 8.5. For the mid-term, the D50 would be projected between 1.9 and 2.9 days under RCP 4.5 and 1.8 to 2.7 days under RCP 8.5. The FGP increases up to 19.5% for Gorgan and 21.3% for Varamin under climatic scenarios relative to baseline, and it will not change in the future climate for other landraces. In conclusion, global warming can result in rapid, uniform, and complete germination in different tomato landraces.

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Section: Discussionsupporting

confidence: 87%

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

Sousaraei

Torabi

Soltani

et al. 2022

Seeds

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“…Second, nondormant seeds will germinate at a certain range of temperatures, described by the cardinal temperatures, which differ between species and even among genotypes within a species [2,3]. The temperature below which seeds will not germinate is the base temperature.…”

Section: Temperaturementioning

confidence: 99%

An Overview of Environmental Cues That Affect Germination of Nondormant Seeds

Soltani

Baskin

González-Andújar

2022

Seeds

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For a successful germination and plant growth, seeds must germinate at the right time. Seeds must become nondormant and must fulfill the seed germination requirements. These requirements include light/dark, moisture, temperature, and other environmental cues (e.g., ethylene, exudate from host roots, or chemicals from fire) in the habitat. Seeds come out from dormancy in response to environmental cues, but depending on the species, they may need to be exposed to a second set of environmental cue to germinate. That is, nondormant seeds require specific temperature and water conditions to germination, and sometimes unfavorable temperature and water conditions will cause seeds to enter secondary dormancy. There are still mysteries about how/what environmental cues help seeds detect the right time/conditions for germination after dormancy is broken. Our knowledge of species-specific conditions is incomplete and further studies are needed.

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“…A greenhouse serves to safeguard crops from the external environment and offers optimal environmental microclimate for their growth, especially to maintain minimum/optimum/maximum temperature, the so-called three cardinal temperatures . The optimum growth temperature is different for different crops, such as 16.6–23.5 °C for germination of tomato and 27–29 °C for cotton …”

Section: Introductionmentioning

confidence: 99%

Near-Infrared Reflective Greenhouse Covering: A Novel Strategy for Electricity-Free Cooling

Zhang,

Chen,

Cao

et al. 2024

ACS Agric. Sci. Technol.

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Traditional cooling strategies for greenhouses commonly result in significant electricity consumption and a substantial release of carbon dioxide emissions. Considering the industrial fabrication process for the greenhouse covering film and the thermal management theory, we developed a composite greenhouse covering film that incorporates titanium dioxide into polyethylene to achieve near-infrared reflection. The film demonstrates an impressive near-infrared reflectance of 54.4% within the wavelength range of 780−2500 nm. A tunnel-type greenhouse demo comparative test results show that the composite film can effectively decrease the average temperature inside the greenhouse by 6.7 °C in comparison to the pure polyethylene film. The reduction implies a significant annual saving in cooling electricity at the national level of 2151912.3 MW h, along with an annual CO 2 emission reduction by 1250261.1 tons.

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Variation of seed germination response to temperature in tomato landraces: An adaptation strategy to environmental conditions

Cited by 7 publications

References 38 publications

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

An Overview of Environmental Cues That Affect Germination of Nondormant Seeds

Near-Infrared Reflective Greenhouse Covering: A Novel Strategy for Electricity-Free Cooling

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