Root Distribution in Apricot Orchard (Prunus Armeniaca L. 'Búlida') Under Trickle Irrigation

Ruiz, Antonio Martínez; Franco, J.A.; Plana, V.; García, José María Abrisqueta

doi:10.17660/actahortic.2006.717.62

Cited by 8 publications

(4 citation statements)

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“…This mechanism may play an important role in drought resistance [ 37 ]. In contrast, some studies found that drought result in restrictions in root growth [ 38 , 39 ]. However, because of the complexity of phenomena encompassing multiple biochemical and physiological processes at both a cellular and organ level, mechanisms of the biochemical and molecular on drought resistance in plant roots has remained limited so far.…”

Section: Introductionmentioning

confidence: 99%

Physiological and proteomic analyses of the drought stress response in Amygdalus Mira (Koehne) Yü et Lu roots

et al. 2017

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BackgroundPlants are oftentimes exposed to many types of abiotic stresses. Drought is one of the main environmental stresses which limits plant growth, distribution and crop yield worldwide. Amygdalus mira (Koehne) Yü et Lu is an important wild peach, and it is considered an ideal wild peach germplasm for improving cultivated peach plants. Because of the loss of genetic variation, cultivated peach plants are sensitive to biotic and abiotic stresses. Wild peach germplasm can offer many useful genes for peach improvement. Responses to drought by withholding water have been studied in Amygdalus mira (Koehne) Yü et Lu roots. In this study, plants were divided into well-watered (control) and water-stressed (treatment) groups, and the treatment group did not receive water until the recovery period (day 16).ResultsSeveral physiological parameters, including root water content and root length, were reduced by drought stress and recovered after rewatering. In addition, the relative conductivity, the levels of proline, MDA and H2O2, and the activities of ROS scavenging enzymes (POD, APX and CAT) were increased, and none of these factors, except the level of proline, recovered after rewatering. In total, 95 differentially expressed proteins were revealed after drought. The identified proteins refer to a extensive range of biological processes, molecular functions and cellular components, including cytoskeleton dynamics (3.16% of the total 95 proteins), carbohydrate and nitrogen metabolism (6.33% of the total 95 proteins), energy metabolism (7.37% of the total 95 proteins), transcription and translation (18.95% of the total 95 proteins), transport (4.21% of the total 95 proteins), inducers (3.16% of the total 95 proteins), stress and defense (26.31% of the total 95 proteins), molecular chaperones (9.47% of the total 95 proteins), protein degradation (3.16% of the total 95 proteins), signal transduction (7.37% of the total 95 proteins), other materials metabolism (5.26% of the total 95 proteins) and unknown functions (5.26% of the total 95 proteins). Proteins related to defense, stress, transcription and translation play an important role in drought response. In addition, we also examined the correlation between protein and transcript levels.ConclusionsThe interaction between enzymatic and non-enzymatic antioxidants, the levels of proline, MDA, H2O2 and the relative conductivity, and the expression level of proteins in drought-treated plants all contribute to drought resistance in Amygdalus mira (Koehne) Yü et Lu. Electronic supplementary materialThe online version of this article (doi:10.1186/s12870-017-1000-z) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Physiological and proteomic analyses of the drought stress response in Amygdalus Mira (Koehne) Yü et Lu roots

et al. 2017

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“…Although plant water deficit reportedly leads to restrictions in root growth (Gajri et al 1991 andRuiz-Canales et al 2006), soil water deficit has been shown to stimulate root development (McCully 1999). Deficit irrigation has also been applied in order to stimulate root growth (Romero et al 2004) especially in the deeper soil layers (Burkart et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Effect of tillage system on the root growth of spring wheat

et al. 2009

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Little research has examined the influence of tillage system on root growth in wheat grown on rainfed Vertisols. A 3-year field study (2003, 2004 and 2005) was carried out on a typical Vertisol (southern Spain), to determine the effects of tillage system on root growth in spring wheat (Triticum aestivum L) grown in continuous rotation with faba bean (Vicia faba L), within the framework of the longterm "Malagón" experiment started in 1986. Tillage treatments were no-tillage (NT) and conventional tillage (CT), and the experiment was designed as a randomized complete block with three replications. The following parameters were measured: above-ground biomass, grain yield, root length density (RLD), root biomass (RB) and root N content. In the topmost 10 cm of soil, higher values were found under CT than under NT for RLD in the rainiest year (20.2 km m −3 vs. 9.6 km m −3 respectively) and for RB (512 kg ha −1 vs. 261 kg ha −1 respectively) in all study years. In deeper layers, no difference was recorded between the two tillage systems. Greater wheat root development in the upper soil layer under CT may reflect the greater soil penetration resistance found in the topmost 10 cm under NT. Root separation using a sieve with a 0.5 mm mesh screen led to a marked underestimation of RLD and RB, with values up to three times higher when using a 0.2 mm mesh screen. Mean wheat root N content in the topmost 30 cm of soil accounted for over 80% of total root N content. The highest grain yield was observed under NT, since this system provided greater water storage in the soil profile in the mostly dry study years.

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“…According to the optimal partitioning theory, plants should allocate relatively more carbon and nutrients to root growth than to aboveground growth when plant growth is limited by water shortage (Bloom et al 1985). However, some research reports have shown a decrease in root length density when water is withheld (Ruiz-Canales et al 2006;Abrisqueta et al 2008). This decrease may be explained by increased fine-root turnover -higher fine-root mortality concurrent with increased root growth (Meier and Leuschner 2008).…”

Section: Effect On Root Growthmentioning

confidence: 99%

The Management of Tree Root Systems in Urban and Suburban Settings: A Review of Soil Influence on Root Growth

Watson¹,

Hewitt²,

Custic³

et al. 2014

AUF

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The physical, chemical, and biological constraints of urban soils often pose limitations for the growth of tree roots. An understanding of the interrelationships of soil properties is important for proper management. As a result of the interdependence of soil properties, the status of one soil factor can have an effect on all others. Preventing soil damage is most effective and preferred. Cultural practices, such as cultivation and mulching, can be effective in improving soil properties. Soil additives, such as biostimulant products, have not proven to be consistently effective through research. The management challenge is to provide an urban environment that functions like the natural environment.

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Root Distribution in Apricot Orchard (Prunus Armeniaca L. 'Búlida') Under Trickle Irrigation

Cited by 8 publications

References 0 publications

Physiological and proteomic analyses of the drought stress response in Amygdalus Mira (Koehne) Yü et Lu roots

Physiological and proteomic analyses of the drought stress response in Amygdalus Mira (Koehne) Yü et Lu roots

Effect of tillage system on the root growth of spring wheat

The Management of Tree Root Systems in Urban and Suburban Settings: A Review of Soil Influence on Root Growth

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