Assessing the heat stress tolerance potential of tomato lines under poly-house and open field conditions

Osei‐Bonsu, Isaac; Osei, Michael Kwabena; Agyare, Richard Yaw; Adjebeng‐Danquah, Joseph; Bediako, Kwabena Asare; Gyau, J.; Adomako, Joseph; Ofori, P.; Prempeh, Ruth; Cho, Myeong-Cheoul

doi:10.1080/23311932.2022.2115665

Cited by 7 publications

(4 citation statements)

References 45 publications

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“…Similarly, Muller and Rieu (2016) demonstrated that high temperatures decrease pollen viability. Extreme heat disrupts several physiological and biochemical processes in plants, resulting in flower drops, poor flower set, and reduced fruit yield (Osei-Bonsu et al 2022). Alsamir et al (2021) also noted that extreme high temperatures not only reduce flower and fruit sets but also impact fruit development and maturity.…”

Section: Discussionmentioning

confidence: 99%

Assessing Tomato Genotypes for Organic Hydroponic Production in Stressful Environmental Conditions

Dash,

Guo,

Leskovar

2024

horts

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Identifying tomato genotypes that can thrive and produce abundantly under arid climatic conditions and addressing the growing food demand caused by population growth are pressing concerns for food security. This research aimed to assess the growth, physiological, phenological, fruit yield, and postharvest quality of tomato genotypes cultivated in an organic hydroponic system in Qatar, where abiotic stress conditions prevail. Ten different tomato genotypes were carefully evaluated, and comprehensive data regarding their growth and development were collected and analyzed. The performance of these tomato genotypes across all traits related to yield and quality showed significant variations. Notably, the ‘Velocity’ and ‘Sigma’ genotypes consistently exhibited robust vegetative growth and improved phenological characteristics compared with the other tomato cultivars. Specifically, ‘Velocity’ and ‘Sigma’ displayed increased leaf assimilation rates (35% and 32%), stomatal conductance (14% and 11%), and reduced transpiration loss (50% and 44%) compared with ‘SV4129TH’. These genotypes also showed lower electrolyte leakage (32% and 28%) and maintained higher intercellular CO2 concentrations. Furthermore, ‘Velocity’ exhibited an accelerated flowering pattern, with the first flowering occurring 4 days sooner and 50% flowering occurring 5 days sooner than that of ‘SV4129TH’. ‘Velocity’ also demonstrated superior fruit set (14%), pollen viability (24%), and fewer incidences of flower drops (36%) compared with ‘SV4129TH’. Notably, ‘Velocity’ outperformed ‘SV4129TH’ in terms of marketable fruit yields, with a 32% higher yield. In addition to its impressive yield, ‘Velocity’ exhibited superior postharvest quality, including firmness, Brix level, acidity, and color. Therefore, overall, ‘Velocity’ and ‘Sigma’ emerged as promising genotypes with strong abiotic stress tolerance capabilities. The correlation analysis of these traits provided valuable insights into the selection and breeding of genotypes that can withstand abiotic stress conditions, laying the foundation for effective comparisons and selections of genotypes suitable for organic hydroponic cultivation in stressful environments.

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Section: Discussionmentioning

confidence: 99%

Assessing Tomato Genotypes for Organic Hydroponic Production in Stressful Environmental Conditions

Dash,

Guo,

Leskovar

2024

horts

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“…Similarly, Muller and Rieu (2016) revealed that high temperatures decreased pollen viability. Several physiological and biochemical events of plants are disrupted because of extreme heat, leading to flower drop, poor flower set, and poor fruit yield (Osei-Bonsu et al 2022). Extreme heat stress negatively affected pollen grain, impaired pollen germination and impaired pollen tube development (Raja et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Optimizing Hydroponic Management Practices for Organically Grown Greenhouse Tomato under Abiotic Stress Conditions

Dash,

Guo,

Leskovar

2023

horts

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Hot and humid conditions create challenges for tomato production under a controlled environment. Low tomato productivity is related to the lack of stress tolerance of existing cultivars and their ability to maximize fruit set and yield. The aim of this study was to evaluate the effectiveness of three management strategies, cultivar selection, grafting, and plant density, for the growth and production efficiency of organically grown hydroponic tomatoes under adverse environmental conditions in Qatar. The experiment used a split-split plot design with ‘Velocity F1’ and ‘Sigma F1’ as the main plot treatments and a factorial arrangement of grafting combinations and planting densities (3.5 and 5.5 plants/m2) as subplots. Tomato cultivar Velocity F1 grafted on Maxifort F1 resulted in greater vegetative growth and improved phenological attributes than nongrafted Velocity F1. Grafted ‘Velocity F1’ plants grown at 3.5 plants/m2 had an increase in leaf photosynthetic rates (18%), less transpiration loss (16%), and less electrolyte leakage (15%) while maintaining stomatal conductance and intercellular CO2 concentrations. At 9 weeks after transplanting, canopy growth was higher (24%) and flowering occurred earlier (3 days) with grafted ‘Velocity F1’ transplants than with nongrafted transplants. Higher fruit sets (20%), pollen viability (22%), and fewer flower drops (17%) were also observed for grafted ‘Velocity F1’ transplants than for nongrafted transplants. Marketable fruit yields were higher (26%) with grafted ‘Velocity F1’ grown at 3.5 plants/m2 than with nongrafted ‘Velocity F1’. Both grafted ‘Velocity F1’ and ‘Sigma F1’ fruits retained acceptable fruit color (L*, a*, b*, C*, °h), firmness, °Brix, titratable acidity, weight, and prolonged shelf life by 4 additional days than nongrafted ones. We conclude that grafted tomato ‘Velocity F1’ grown at a plant density of 3.5 plants/m2 was the best management strategy for enhancing seedlings quality, plant growth, and postharvest quality and alleviating abiotic stresses under this protected environment and hydroponic system.

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“…A recent study in Arabidopsis showed that heat stress has a negative effect on male meiocyte when temperature is increased to 34 • C by leading to irregular spindle structures, defects in chromosomal recombination, and prolonged pachytene/diakinesis phases, which are the probable reason for reduced seed setting [36]. However, the degree of heat stress resistance in plants differs depending on the genotype, the adaptive mechanism they possess, such as morphological modifications, differential gene expression, signaling mechanisms, and physio-chemical changes [37,38].…”

Section: Negative Effects Of Abiotic Stressesmentioning

confidence: 99%

Creating Climate-Resilient Crops by Increasing Drought, Heat, and Salt Tolerance

Sugumar,

Shen,

Smith

et al. 2024

Plants

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Over the years, the changes in the agriculture industry have been inevitable, considering the need to feed the growing population. As the world population continues to grow, food security has become challenged. Resources such as arable land and freshwater have become scarce due to quick urbanization in developing countries and anthropologic activities; expanding agricultural production areas is not an option. Environmental and climatic factors such as drought, heat, and salt stresses pose serious threats to food production worldwide. Therefore, the need to utilize the remaining arable land and water effectively and efficiently and to maximize the yield to support the increasing food demand has become crucial. It is essential to develop climate-resilient crops that will outperform traditional crops under any abiotic stress conditions such as heat, drought, and salt, as well as these stresses in any combinations. This review provides a glimpse of how plant breeding in agriculture has evolved to overcome the harsh environmental conditions and what the future would be like.

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Assessing the heat stress tolerance potential of tomato lines under poly-house and open field conditions

Cited by 7 publications

References 45 publications

Assessing Tomato Genotypes for Organic Hydroponic Production in Stressful Environmental Conditions

Assessing Tomato Genotypes for Organic Hydroponic Production in Stressful Environmental Conditions

Optimizing Hydroponic Management Practices for Organically Grown Greenhouse Tomato under Abiotic Stress Conditions

Creating Climate-Resilient Crops by Increasing Drought, Heat, and Salt Tolerance

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