Root structural plasticity enhances salt tolerance in mature olives

Tan, Junli; Ben‐Gal, Alon; Shtein, Ilana; Bustan, Amnon; Dag, Arnon; Erel, Ran

doi:10.1016/j.envexpbot.2020.104224

Cited by 38 publications

(26 citation statements)

References 67 publications

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“…4), and SRL was small in the remote water area (Table 3). These results are consistent with the relevant conclusions that the increase of soil salt concentration will reduce the SRL and increase the root diameter (Tan et al, 2020). Under certain underground biomass, reducing the RF and FD, increasing the root FA (Table 3), which was conducive to keeping Saussurea salsa away from the environment with high salt and low moisture content in the surface soil, and expanding the utilization space for deep soil moisture and nutrients.…”

Section: 2supporting

confidence: 89%

Fractal Analysis of Root Architecture Responses of Saussurea Salsa to Different Habitats in Sugan Lake Wetland on the Northern Margin of Qinghai-Tibet Plateau

Zhao

Wen

et al. 2021

Preprint

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Aims The fractal structure is an important root architecture characteristic, which can reflect the plasticity mechanism and carbon consumption characteristics of root architecture in heterogeneous habitats. However, there are few studies on the root architecture of inland salt marsh plants from the perspective of fractal geometry. Methods This study according to the difference of the habitat conditions, setting plot I (the near water area, distance from the lakeshore, 50–200 m), plot II (the middle water area, distance from the lakeshore, 300–500 m), plot III (the distance water area, distance from the lakeshore, 600–800 m) 3 test sample. The Saussurea salsa as the research object, the root geometric morphology traits and the root fractal structure of Saussurea salsa in the Sugan Lake wetland was studied in response to heterogeneous habitats. Results The results showed that there was a highly significant negative correlation (p < 0.01) between FD and FA of Saussurea salsa at plot I and plot III, meanwhile, there appeared a less significant negative correlation (p < 0.05) between FD and FA at plot II. Conclusions With the habitat changed from plot I to plot III, the Saussurea salsa tended to form an “intensive” root architecture with high fractal dimension (FD) and low fractal abundance (FA) in plot I. “Diffusive” root architecture with low FD and high FA tended to form in plot III. The root of Saussurea salsa had less branch and more inclined to increasing the soil volume of root expansion in the far water area.

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Section: 2supporting

confidence: 89%

Fractal Analysis of Root Architecture Responses of Saussurea Salsa to Different Habitats in Sugan Lake Wetland on the Northern Margin of Qinghai-Tibet Plateau

Zhao

Wen

et al. 2021

Preprint

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“…2019) and Canarium album (Tan et al . 2020). In a screen of 32 Arabidopsis accessions, Julkowska et al .…”

Section: Discussionmentioning

confidence: 99%

Assessing alfalfa (Medicago sativa L.) tolerance to salinity at seedling stage and screening of the salinity tolerance traits

Wang

et al. 2021

Plant Biol J

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Salt is among the most harmful agents that negatively influences crop yield. Alfalfa is an important perennial forage crop that exhibits wide cultivar variations in salt tolerance. Developing salt‐tolerant alfalfa plants is a promising way to utilize salinized land. A comprehensive method was developed to achieve reliable and effective evaluation of alfalfa salt resistance. This included principal components, membership functions and cluster and stepwise regression analyses. These were used to analyse the salt tolerance coefficients of 14 traits and to evaluate 20 diverse alfalfa cultivars at the seedling stage. The various morphological root parameters of six alfalfa cultivars with contrasting salt tolerance were also tested by a scanning apparatus. According to the comprehensive evaluation value (D value), one highly salt‐tolerant, two salt‐tolerant, four moderately salt‐tolerant and 13 salt‐sensitive alfalfa cultivars were screened. A mathematical equation for the evaluation of alfalfa salt tolerance was established: D′ = −0.126 + 0.667SFW + 0.377SDW + 1.089K+/Na+ + 0.172SFW/RFW (R2 = 0.988; average forecast accuracy of 96.95%), where four indices were closely related to the salt tolerance: shoot fresh weight, ratio of shoot fresh weight to root fresh weight, shoot dry weight and ratio of K+ to Na+ in the shoot. We also found that SSA correlated strongly with SFW, SDW, K+/Na+, D values, while SRV correlated obviously with SFW, SFW/RFW and D values after 150 mm NaCl treatment. In conclusion, the SFW, K+/Na+, SDW, SFW/RFW, SSA and SRV could be used as indicators of salt tolerance in alfalfa seedlings grown under 150 mm NaCl treatment.

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“…Barnea is a modern variety characterized by erect growth, high yields, and suitable for mechanical harvest [ 62 ]. As a result of its vigorous growth, high productivity, and tolerance to salinity [ 63 , 64 ], the ‘Barnea’ gained popularity for oil production in many modern agrosystems globally. In the 2013 season, the first season of the experiments in which tree performances were analyzed, the orchard was six years from planting, and trees reached maximum size.…”

Section: Methodsmentioning

confidence: 99%

Long-Term Impact of Phosphorous Fertilization on Yield and Alternate Bearing in Intensive Irrigated Olive Cultivation

Haberman

Dag

Erel

et al. 2021

Plants

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Phosphorus (P) availability significantly impacts olive tree reproductive development and consequential fruit production. However, the importance of P fertilization in olive cultivation is not clear, and P application is usually recommended only after P deficiency is identified. In order to determine the long-term impacts of continuous P fertilization in intensive irrigated olive cultivation, the growth and production of trees in an intensive orchard with or without P fertilization were evaluated over six consecutive seasons. Withholding of P resulted in significant reduction in soil P quantity and availability. Under lower P availability, long-term fruit production was significantly impaired due to reduced flowering and fruit set. In addition, trees under conditions of low P were characterized by higher alternate bearing fluctuations. Olive tree vegetative growth was hardly affected by P fertilizer level. The impairment of tree productivity was evident in spite of the fact that leaf P content in the treatment without P fertilization did not decrease below commonly reported and accepted thresholds for P deficiency. This implies that the leaf P content sufficiency threshold for intensive olive orchards should be reconsidered. The results demonstrate the negative impact of insufficient P fertilization and signify the need for routine P fertilization in intensive olive cultivation.

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Root structural plasticity enhances salt tolerance in mature olives

Cited by 38 publications

References 67 publications

Fractal Analysis of Root Architecture Responses of Saussurea Salsa to Different Habitats in Sugan Lake Wetland on the Northern Margin of Qinghai-Tibet Plateau

Fractal Analysis of Root Architecture Responses of Saussurea Salsa to Different Habitats in Sugan Lake Wetland on the Northern Margin of Qinghai-Tibet Plateau

Assessing alfalfa (Medicago sativa L.) tolerance to salinity at seedling stage and screening of the salinity tolerance traits

Long-Term Impact of Phosphorous Fertilization on Yield and Alternate Bearing in Intensive Irrigated Olive Cultivation

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