Photosynthetic efficiency and root plasticity promote drought tolerance in coffee genotypes

Andrade, Lissa Izabel Ferreira de; Linhares, Paulo Cássio Alves; Fonseca, Thaís Melo da; Silva, Antonia Almeida da; Santos, Jandeilson Pereira dos; Pereira, Márcio Paulo; Silva, Vânia Aparecida; Marchiori, Paulo Eduardo Ribeiro

doi:10.1007/s11738-022-03434-2

Cited by 4 publications

(3 citation statements)

References 45 publications

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“…Previous studies in Ethiopia also reported differences between arabica coffee varieties in RMR and RSR, but both reduced during the drought-stress period (Worku & Astatkie, 2010b) and arabica coffee genotypes in LRN, TRL RV, RDW, and RSR with higher values for water-stressed than for well-irrigated seedlings (Chekol et al, 2023;Kufa & Yilma, 2013). Similarly, other studies (de Andrade et al, 2022;Gessese et al, 2014;King'oro et al, 2014) have showed variations between coffee genotypes or clones in RSR, number of root hairs, and root cross-section area due to watering frequencies or water deficit conditions. Under drought stress, RSR increases due to greater relative carbon allocation to root growth, which ultimately results in a higher RSR, while TDW decreases (Borah et al, 2021).…”

Section: Discussionsupporting

confidence: 58%

“…Such traits have been associated with improved hydraulic conductance, RLD, rooting depth, and aerenchyma formation that are considered important indicators of drought tolerance (Alagoz et al., 2023). RV, RMR, RSR, root diameter, RD, and the numbers of lateral roots and root hairs are also mentioned as important indicators of drought tolerance in many studies (Alagoz et al., 2023; de Andrade et al., 2022; Wasaya et al., 2018; Worku & Astatkie, 2010b). Among the measured root traits in this study, RLD, RV, RMR, and RSR showed high variations between drought‐resistant and drought‐sensitive coffee varieties under not‐watered condition, whereas TRD, LRL, and RD varied less across the combinations of watering regime and variety.…”

Section: Discussionmentioning

confidence: 99%

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Root traits and biomass production of drought‐resistant and drought‐sensitive arabica coffee varieties growing under contrasting watering regimes

Aman,

Worku,

Shimbir

et al. 2024

Agrosystems Geosci & Env

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Drought is a major factor affecting coffee production, and different genotypes exhibit varying degrees of resistance to drought stress. We examined root traits and biomasses of drought‐resistant (74110, Angafa, Bultum, Chala, and Gawe) and drought‐sensitive (75227, Koti, Melko CH2, Menasibu, and Mokah) Coffea arabica varieties at seedling stage under contrasting watering regimes (water stressed and well watered) for 30 days followed by 15 days of recovery to identify the association between drought resistance and root traits and dry matter partitioning, and the impact of drought stress on growth performance of arabica coffee varieties. We used a split‐plot design with three blocks, where watering regime was the whole‐plot factor and variety was the subplot factor. During water‐stress and recovery periods, the interaction effect between watering regime and variety significantly affected root traits and dry matter partitioning, while the watering‐regime main effect affected biomass. We observed a higher (1) tap root diameter (0.34 cm), lateral root number (80.7), and root volume (4.7 cm−3) for 74110; (2) lateral root number (79.3), specific root length (24.8 cm g−1), and root‐mass ratio (0.41 g g−1) for Bultum; and (3) root length density (3.3–5.2 cm cm−3), root angle (42.6°–47.8°), root‐mass ratio (0.40–0.42 g g−1), and root‐shoot ratio (0.67–0.72 g g−1) for Angafa, Chala, and Gawe under water‐stressed condition. During both study periods, biomasses were much lower under water‐stressed than under well‐watered condition. The findings show the association between drought resistance and root traits and dry matter partitioning, and the impact of drought stress on growth performance of young arabica coffee.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 99%

Root traits and biomass production of drought‐resistant and drought‐sensitive arabica coffee varieties growing under contrasting watering regimes

Aman,

Worku,

Shimbir

et al. 2024

Agrosystems Geosci & Env

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show abstract

“…Meanwhile, the architecture of fine roots allowed trees to adjust to normal growth in harsh situations ( Ostonen et al., 2007 ). For instance, in drought-prone environments, plants could increase the quantity of fine roots or modify D and RTD variations ( Tan et al., 2021 ; De Andrade et al., 2022 ). In response to moisture stress, fine roots would increase RTD and decrease D and SRA ( Hertel et al., 2013 ; Wurzburger and Wright, 2015 ; Nikolova et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Response strategies of fine root morphology of Cupressus funebris to the different soil environment

Wen

Wang

et al. 2022

Front. Plant Sci.

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Understanding fine root morphology is crucial to uncover water and nutrient acquisition and transposition of fine roots. However, there is still a lack of knowledge regarding how the soil environment affects the fine root morphology of various root orders in the stable forest ecosystem. Therefore, this experiment assessed the response strategies of fine root morphology (first- to fifth -order fine roots) in four different soil environments. The results showed that fine root morphology was related to soil environment, and there were significant differences in specific root length (SRL), specific surface area (SRA), diameter (D), and root tissue density (RTD) of first- and second -order fine roots. Soil total nitrogen (TN), alkaline nitrogen (AN) and available phosphorus (AP) were positively correlated with SRL and SRA and negatively correlated with D and RTD. Soil moisture (SW) was positively correlated with the D and RTD of first- and second-order fine roots and negatively correlated with the SRL and SRA. Soil temperature (ST), organic carbon (OC), soil bulk density (SBD) and soil porosity (SP) were not significantly correlated with the D, SRL, SRA, and RTD of the first- and second -order fine roots. AN was positively correlated with SRL and SRA and negatively correlated with both D and RTD in the first- and second -order fine roots, and the correlation coefficient was very significant. Therefore, we finally concluded that soil AN was the most critical factor affecting root D, SRL, SRA and RTD of fine roots, and mainly affected the morphology of first- and second -order fine roots. In conclusion, our research provides support for understanding the relationship between fine root morphology and soil environment, and indicates that soil nutrient gradient forms good root morphology at intraspecific scale.

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Impact of Drought, Heat, Excess Light, and Salinity on Coffee Production: Strategies for Mitigating Stress Through Plant Breeding and Nutrition

Borgo,

Rabêlo,

Marchiori

et al. 2024

Agriculture

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Abiotic stresses significantly disrupt plant physiology at the molecular, biochemical, and morphological levels, often causing irreversible damage. To ensure sustainable coffee production, it is essential to understand how environmental stresses—such as drought, heat, excess light, and salinity—affect plant growth, and to develop strategies to mitigate their impact. Despite the limited number of studies on this topic, compiling existing knowledge can provide valuable insights into how coffee plants respond to such stresses. Specifically, understanding whether coffee plants can endure damage caused by these stresses and the mechanisms they employ to do so is critical. This review aims to (i) summarize key findings on the effects of drought, heat, excess light, and salinity on coffee plants and their coping mechanisms; and (ii) explore plant breeding and nutrition as potential strategies to mitigate these abiotic stresses and enhance coffee production.

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Photosynthetic efficiency and root plasticity promote drought tolerance in coffee genotypes

Cited by 4 publications

References 45 publications

Root traits and biomass production of drought‐resistant and drought‐sensitive arabica coffee varieties growing under contrasting watering regimes

Root traits and biomass production of drought‐resistant and drought‐sensitive arabica coffee varieties growing under contrasting watering regimes

Response strategies of fine root morphology of Cupressus funebris to the different soil environment

Impact of Drought, Heat, Excess Light, and Salinity on Coffee Production: Strategies for Mitigating Stress Through Plant Breeding and Nutrition

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