Morpho-physiological evaluation of tomato genotypes under high temperature stress conditions

Shaheen, Muhammad Rashid; Ayyub, C. M.; Amjad, Muhammad; Waraich, Ejaz Ahmad

doi:10.1002/jsfa.7388

Cited by 45 publications

(20 citation statements)

References 31 publications

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“…The phytoremediation potential of plants may also be enhanced by strengthening plants to tolerate heavy-metal stress and toxicity. Application of salicylic acid (SA), has been found effective to alleviate metal stress in the plant, resulting in enhanced phytoremediation potential of plants [80,81].…”

Section: Chemical Assisted Phytoremediationmentioning

confidence: 99%

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

et al. 2020

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Heavy-metal (HM) pollution is considered a leading source of environmental contamination. Heavy-metal pollution in ground water poses a serious threat to human health and the aquatic ecosystem. Conventional treatment technologies to remove the pollutants from wastewater are usually costly, time-consuming, environmentally destructive, and mostly inefficient. Phytoremediation is a cost-effective green emerging technology with long-lasting applicability. The selection of plant species is the most significant aspect for successful phytoremediation. Aquatic plants hold steep efficiency for the removal of organic and inorganic pollutants. Water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes) and Duck weed (Lemna minor) along with some other aquatic plants are prominent metal accumulator plants for the remediation of heavy-metal polluted water. The phytoremediation potential of the aquatic plant can be further enhanced by the application of innovative approaches in phytoremediation. A summarizing review regarding the use of aquatic plants in phytoremediation is gathered in order to present the broad applicability of phytoremediation.

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Section: Chemical Assisted Phytoremediationmentioning

confidence: 99%

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

et al. 2020

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“…There is a growing interest in screening cultivated and wild tomato genetic resources to identify heat tolerant genotypes, e.g., [19][20][21][22][23]. In addition, the genetic architecture of some traits associated with heat tolerance (e.g., pollen viability, inflorescence number, pollen number, style protrusion and style length, fruit set) has been dissected and their associated quantitative trait loci (QTL) were mapped [20,24].…”

Section: Introductionmentioning

confidence: 99%

Accelerating Breeding for Heat Tolerance in Tomato (Solanum lycopersicum L.): An Integrated Approach

et al. 2019

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Heat stress is a major limiting factor for crop productivity. Tomato is highly sensitive to heat stress, which can result in a total yield loss. To adapt to current and future heat stress, there is a dire need to develop heat tolerant cultivars. Here, we review recent attempts to improve screening for heat tolerance and to exploit genetic and genomic resources in tomatoes. We provide key factors related to phenotyping environments and traits (morphological, physiological, and metabolic) to be considered to identify and breed thermo-tolerant genotypes. There is significant variability in tomato germplasm that can be harnessed to breed for thermo-tolerance. Based on our review, we propose that the use of advanced backcross populations and chromosome segments substitution lines is the best means to exploit variability for heat tolerance in non-cultivated tomato species. We applied a meta quantitative trait loci (MQTL) analysis on data from four mapping experiments to co-localize QTL associated with heat tolerance traits (e.g., pollen viability, number of pollen, number of flowers, style protrusion, style length). The analysis revealed 13 MQTL of which 11 were composed of a cluster of QTL. Overall, there was a reduction of about 1.5-fold in the confidence interval (CI) of the MQTL (31.82 cM) compared to the average CI of individual QTL (47.4 cM). This confidence interval is still large and additional mapping resolution approaches such as association mapping and multi-parent linkage mapping are needed. Further investigations are required to decipher the genetic architecture of heat tolerance surrogate traits in tomatoes. Genomic selection and new breeding techniques including genome editing and speed breeding hold promise to fast-track development of improved heat tolerance and other farmer- and consumer-preferred traits in tomatoes.

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“…In tomato, heat stress causes reduced yields because of failure to set fruit and reduced photosynthetic capacity (Peet et al, 1998;Zhang et al, 2011Zhang et al, , 2012. Hightemperature stress has been reported to affect many physiologic traits, including fresh plant weight, dry weight, and leaf area in tomato (Shaheen et al, 2016;Zhou et al, 2017). Other vegetative effects include reduced photosynthetic efficiency (Bartsur et al, 1985;Criddle et al, 1997), reduced assimilate translocation, reduced mesophyll resistance, and enhanced disorganization of cellular organs (Chen et al, 1982).…”

mentioning

confidence: 99%

“…Elsewhere, it is reported that only the heat-susceptible lines exhibit the heat stress-induced physiologic perturbations during strong, acute heat stress, which suggests that heat-tolerant lines may also exhibit a greater sort of ''buffering'' capacity for heat before their systems are disrupted (Camejo et al, 2005(Camejo et al, , 2006(Camejo et al, , 2007. Selections from a wide genetic variation have been reported by Shaheen et al (2016), and molecular characterization would provide further insight into the detailed investigation on the molecular mechanism of heat tolerance in tomato.…”

mentioning

confidence: 99%

Heritability of Flower Number and Fruit Set under Heat Stress in Tomato

Panthee¹,

Kressin²,

Piotrowski³

2018

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The growing volatility of the climate, and its potential impact on crop production, has prompted several physiologic and genetic analyses under high-temperature conditions. Tomato is grown in warm temperate, subtropical, and tropical regions of the world, where daytime and nighttime temperatures regularly exceed the optimum temperatures for tomato growth during the summer, exerting stress on tomato production. Recent trends indicate more frequent extreme summer temperatures, which may grow even greater in the future, impacting crop growth. The objective of the current study was to estimate the heritability of flower and fruit set ability of tomato populations under heat stress conditions so that improvement for these traits can be planned. We developed two tomato populations using contrasting parents from the North Carolina State University (NCSU) tomato breeding program and the World Vegetable Center (formerly Asian Vegetable Research and Development Center). The F2 and F2-derived F3 families (F2:3 populations) were grown at the Piedmont Research Station (PRS), Salisbury, NC, where summer growing temperatures are warmer than optimum for tomato production. Heritability estimates of the number of flowers per cluster, the number of fruit per cluster, and fruit set (measured as a percentage) were determined in two populations of tomato—NC10137 (NC714 × CLN-2413A) and NC10418 [230 HS-1(99) × NC 1CS]—by regression analysis using the offspring-on-parents method. Broad-sense heritability across the traits was high (47.2%–100%), whereas narrow-sense heritability was very low (1.4%–22.5%). There was a positive correlation between the number of flowers and the number of fruit per cluster (r = 0.50, P < 0.05), which was in close agreement with previous findings. These findings will be useful in investigating the genetic control of heat stress tolerance in tomato and in facilitating crop improvement in the future.

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Morpho-physiological evaluation of tomato genotypes under high temperature stress conditions

Cited by 45 publications

References 31 publications

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

Accelerating Breeding for Heat Tolerance in Tomato (Solanum lycopersicum L.): An Integrated Approach

Heritability of Flower Number and Fruit Set under Heat Stress in Tomato

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