Mitigation of drought stress in eggplant by date straw and plastic mulches

Rodan, Majid Amiri; Hassandokht, Mohammad Reza; Sadeghzadeh-Ahari, Davoud; Mousavi, Amir

doi:10.1016/j.jssas.2020.09.006

Cited by 11 publications

(6 citation statements)

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“…S . melongena has been shown to be adversely affected by drought in terms of plant height, total dry weight and fruit yield [ 55 – 58 ]. Reduction in transpiration rate, stomatal conductance and photosynthetic rate of eggplant were also observed upon exposure to different drought stress durations [ 59 ].…”

Section: Introductionmentioning

confidence: 99%

Plant strategies for maximizing growth during water stress and subsequent recovery in Solanum melongena L. (eggplant)

2021

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Climate change is projected to increase the incidence of severe drought in many regions, potentially requiring selection for different traits in crop species to maintain productivity under water stress. In this study, we identified a suite of hydraulic traits associated with high productivity under water stress in four genotypes of S. melongena L. We also assessed the potential for recovery of this suite of traits from drought stress after re-watering. We observed that two genotypes, PHL 4841 and PHL 2778, quickly grew into large plants with smaller, thicker leaves and increasingly poor hydraulic status (a water-spender strategy), whereas PHL 2789 and Mara maintained safer water status and larger leaves but sacrificed large gains in biomass (a water-saver strategy). The best performing genotype under water stress, PHL 2778, additionally showed a significant increase in root biomass allocation relative to other genotypes. Biomass traits of all genotypes were negatively impacted by water deficit and remained impaired after a week of recovery; however, physiological traits such as electron transport capacity of photosystem II, and proportional allocation to root biomass and fine root length, and leaf area recovered after one week, indicating a strong capacity for eggplant to rebound from short-term deficits via recovery of physiological activity and allocation to resource acquiring tissues. These traits should be considered in selection and breeding of eggplant hybrids for future agricultural outlooks.

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Section: Introductionmentioning

confidence: 99%

Plant strategies for maximizing growth during water stress and subsequent recovery in Solanum melongena L. (eggplant)

2021

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“…Straw mulch treatment provides various advantages, including simplicity of application, lower soil temperature, less temperature changes during the day, and enhanced soil moisture. The effects of different mulches on various plants, such as tomatoes and eggplant, have been investigated (Rodan et al, 2020). According to Abdrabbo et al (2017), the reaction of plants to plastic mulch is impacted by the kind of plant materials utilized and the surrounding environment.…”

Section: Role Of Mulching On Crop Productionmentioning

confidence: 99%

Enhancing crop yield and conserving soil moisture through mulching practices in dryland agriculture

Demo,

Asefa Bogale

2024

Front. Agron.

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Dryland agriculture requires the efficient utilization of water resources and the implementation of water-conserving technologies. Mulching is a water conservation practice used in arid land areas to preserve soil moisture, control temperature, and minimize soil evaporation rates. Organic mulching minimizes soil deterioration, enhances organic matter, and boosts the soil’s ability to retain water. Mulching can help keep moisture in the root zone, allowing plants to receive water for extended periods. Mulching with composted yard waste led to higher soil nutrient levels, including phosphorus (P), potassium (K), calcium (Ca), and organic matter when compared to uncovered soil. Under plastic mulch, soluble nutrients such as nitrate (NO3−), ammonium (NH4+), calcium (Ca2+), magnesium (Mg2+), potassium (K+), and fulvic acid are released as organic matter decomposes, enhancing the soil’s nutrient availability. Mulching has several advantages for dryland agriculture, such as reducing soil water loss, soil erosion, weed growth, water droplet kinetic energy, and competition for nutrients and water with nearby fields. This review article aimed to demonstrate the effectiveness of ground mulching in water conservation. This is particularly important in arid regions where agricultural sustainability is at risk due to drought, heat stress, and the inefficient use of limited water resources during the cropping season. Ground mulching is essential for minimizing surface evaporation and hence decreasing water loss. This review research thoroughly examines the advantages of organic and synthetic mulches in crop production, as well as their use in the preservation of soil and water resources.

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“…Horticultural crops with high irrigation requirements [ 8 ] are particularly vulnerable to reduced precipitation, a scenario exacerbated by climate change [ 9 ]. In this context, eggplant ( Solanum melongena L.) is emerging among vegetables as a promising candidate for cultivation under water-stressed conditions [ 10 , 11 ]. A remarkable drought tolerance response has been observed in this species at the biochemical level, involving increased phenolic compounds and flavonoids to alleviate oxidative stress induced by water deficit [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Growth and antioxidant responses to water stress in eggplant MAGIC population parents, F1 hybrids and a subset of recombinant inbred lines

Flores-Saavedra,

Plazas,

Gramazio

et al. 2024

BMC Plant Biol

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Background The generation of new eggplant (Solanum melongena L.) cultivars with drought tolerance is a main challenge in the current context of climate change. In this study, the eight parents (seven of S. melongena and one of the wild relative S. incanum L.) of the first eggplant MAGIC (Multiparent Advanced Generation Intercrossing) population, together with four F1 hybrids amongst them, five S5 MAGIC recombinant inbred lines selected for their genetic diversity, and one commercial hybrid were evaluated in young plant stage under water stress conditions (30% field capacity; FC) and control conditions (100% FC). After a 21-day treatment period, growth and biomass traits, photosynthetic pigments, oxidative stress markers, antioxidant compounds, and proline content were evaluated. Results Significant effects (p < 0.05) were observed for genotype, water treatments and their interaction in most of the traits analyzed. The eight MAGIC population parental genotypes displayed a wide variation in their responses to water stress, with some of them exhibiting enhanced root development and reduced foliar biomass. The commercial hybrid had greater aerial growth compared to root growth. The four F1 hybrids among MAGIC parents differed in their performance, with some having significant positive or negative heterosis in several traits. The subset of five MAGIC lines displayed a wide diversity in their response to water stress. Conclusion The results show that a large diversity for tolerance to drought is available among the eggplant MAGIC materials, which can contribute to developing drought-tolerant eggplant cultivars.

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Mitigation of drought stress in eggplant by date straw and plastic mulches

Cited by 11 publications

References 50 publications

Plant strategies for maximizing growth during water stress and subsequent recovery in Solanum melongena L. (eggplant)

Plant strategies for maximizing growth during water stress and subsequent recovery in Solanum melongena L. (eggplant)

Enhancing crop yield and conserving soil moisture through mulching practices in dryland agriculture

Growth and antioxidant responses to water stress in eggplant MAGIC population parents, F1 hybrids and a subset of recombinant inbred lines

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