Modeling drought stress impacts under current and future climate for peanut in the semiarid pampas region of Argentina

Palmero, Francisco; Carcedo, Ana; Haro, Ricardo; Bigatton, Ezequiel Darío; Salvagiotti, Fernando; Ciampitti, Ignacio A.

doi:10.1016/j.fcr.2022.108615

Cited by 13 publications

(4 citation statements)

References 93 publications

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“…As an important leguminous crop, peanut (Arachis hypogaea L.) is globally cultivated in most tropical, subtropical, and temperate regions, which adapts to a wide range of climatic and soil conditions [19][20][21]. Peanut is relatively sensitive to salt and drought stress [22,23]. Usually, improper irrigation and excessive evaporation of soil moisture result in aggravated soil salinization, induces damage to peanut crops [24,25].…”

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confidence: 99%

The multifaceted roles of Arbuscular Mycorrhizal Fungi in peanut responses to salt, drought, and cold stress

Liu

Cui

et al. 2023

BMC Plant Biol

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Background Arbuscular Mycorrhizal Fungi (AMF) are beneficial microorganisms in soil-plant interactions; however, the underlying mechanisms regarding their roles in legumes environmental stress remain elusive. Present trials were undertaken to study the effect of AMF on the ameliorating of salt, drought, and cold stress in peanut (Arachis hypogaea L.) plants. A new product of AMF combined with Rhizophagus irregularis SA, Rhizophagus clarus BEG142, Glomus lamellosum ON393, and Funneliformis mosseae BEG95 (1: 1: 1: 1, w/w/w/w) was inoculated with peanut and the physiological and metabolomic responses of the AMF-inoculated and non-inoculated peanut plants to salt, drought, and cold stress were comprehensively characterized, respectively. Results AMF-inoculated plants exhibited higher plant growth, leaf relative water content (RWC), net photosynthetic rate, maximal photochemical efficiency of photosystem II (PSII) (Fv/Fm), activities of antioxidant enzymes, and K+: Na+ ratio while lower leaf relative electrolyte conductivity (REC), concentration of malondialdehyde (MDA), and the accumulation of reactive oxygen species (ROS) under stressful conditions. Moreover, the structures of chloroplast thylakoids and mitochondria in AMF-inoculated plants were less damaged by these stresses. Non-targeted metabolomics indicated that AMF altered numerous pathways associated with organic acids and amino acid metabolisms in peanut roots under both normal-growth and stressful conditions, which were further improved by the osmolytes accumulation data. Conclusion This study provides a promising AMF product and demonstrates that this AMF combination could enhance peanut salt, drought, and cold stress tolerance through improving plant growth, protecting photosystem, enhancing antioxidant system, and regulating osmotic adjustment.

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confidence: 99%

The multifaceted roles of Arbuscular Mycorrhizal Fungi in peanut responses to salt, drought, and cold stress

Liu

Cui

et al. 2023

BMC Plant Biol

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“…According to the results of the field trials, cultivars with tolerance to water stress, such as EC‐98 (T), had a better performance in pod and seed yield compared to other cultivars that do not have this advantage. Similarly, Palmero et al (2022), quantified decreases in the partition of dry matter (assimilated) to the pods after temporary drought stress during the reproductive development of the crop. Also, a drought tolerant genotype (Manfredi 393 INTA) had a greater partition towards the pods than a susceptible genotype (Florman INTA) (Collino et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Morphophysiological and nitrogen metabolism responses of inoculated peanut cultivars with contrasting drought tolerance

Furlán

Morla

Bianucci

et al. 2023

J Agronomy Crop Science

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Legumes grow in temperate and warm climates, being susceptible to unpredictable episodes of water deficit. This study aimed to evaluate (i) morphology and N-compound contents in roots and nodules, (ii) N and C contents in shoots and (iii) crop yield in two peanut cultivars with contrasting drought tolerance, inoculated with a reference N-fixing strain and challenged by water deficit conditions. For that, seeds of two peanut cultivars, Granoleico (sensitive, S) and EC-98 (tolerant, T) were inoculated with Bradyrhizobium sp. SEMIA6144 and 30 days after sowing, plants were separated into the experimental groups: control, drought stress and drought stress and subsequent rehydration. Although the results obtained on root anatomy and histology revealed differential responses between cultivars, they were not associated with tolerance traits in EC-98 (T). In contrast, nodules of EC-98 (T) showed invariable diameter and infection zone upon the exposition to drought stress and rehydration compared to nodules of Granoleico (S) plants exposed to the same treatments. EC-98 (T) showed invariable contents of C in shoots and of nitrates and ureides in roots and nodules of stressed and rehydrated plants, an increase in total amino acids only in nodules of stressed plants and a small reduction in N-content (compared with the sensitive cultivar). The status of these variables related to C-and N-metabolism could be associated with an efficient biological nitrogen fixation. Besides, EC-98 (T) yielded better both in a crop cycle with adequate water supply and in a dry year and the inoculation improved yield in both cultivars. Thus, the inoculation with N-fixing bacteria is recommended for EC-98 (T) in seasons with expected drought stress cycles in crops.

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“…One of the main orbital platforms for climate monitoring is NASA POWER, which collects information on a 1 • × 1 • grid for solar radiation sources and a ½ • × 5/8 • grid for climate data, enabling global climate monitoring. This tool has been applied to estimate corn productivity [5], leaf area, and productivity in soybeans [13] and develop models for identifying thermal stress [14].…”

Section: Introductionmentioning

confidence: 99%

Advanced Farming Strategies Using NASA POWER Data in Peanut-Producing Regions without Surface Meteorological Stations

Barboza,

Ferraz,

Pilon

et al. 2024

AgriEngineering

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Understanding the impact of climate on peanut growth is crucial, given the importance of temperature in peanut to accumulate Growing Degree Days (GDD). Therefore, our study aimed to compare data sourced from the NASA POWER platform with information from surface weather stations to identify underlying climate variables associated with peanut maturity (PMI). Second, we sought to devise alternative methods for calculating GDD in peanut fields without nearby weather stations. We utilized four peanut production fields in the state of Georgia, USA, using the cultivar Georgia-06G. Weather data from surface stations located near peanut fields were obtained from the University of Georgia’s weather stations. Corresponding data from the NASA POWER platform were downloaded by inputting the geographic coordinates of the weather stations. The climate variables included maximum and minimum temperatures, average temperature, solar radiation, surface pressure, relative humidity, and wind speed. We evaluated the platforms using Pearson correlation (r) analysis (p < 0.05), linear regression analysis, assessing coefficient of determination (R2), root mean square error (RMSE), and Willmott index (d), as well as principal component analysis. Among the climate variables, maximum and minimum temperatures, average temperature, and solar radiation showed the highest R2 values, along with low RMSE values. Conversely, wind speed and relative humidity exhibited lower correlation values with errors higher than those of the other variables. The grid size from the NASA POWER platform contributed to low model adjustments since the grid’s extension is kilometric and can overlap areas. Despite this limitation, NASA POWER proves to be a potential tool for PMI monitoring. It should be especially helpful for growers who do not have surface weather stations near their farms.

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Modeling drought stress impacts under current and future climate for peanut in the semiarid pampas region of Argentina

Cited by 13 publications

References 93 publications

The multifaceted roles of Arbuscular Mycorrhizal Fungi in peanut responses to salt, drought, and cold stress

The multifaceted roles of Arbuscular Mycorrhizal Fungi in peanut responses to salt, drought, and cold stress

Morphophysiological and nitrogen metabolism responses of inoculated peanut cultivars with contrasting drought tolerance

Advanced Farming Strategies Using NASA POWER Data in Peanut-Producing Regions without Surface Meteorological Stations

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