Wheat root growth responses to horizontal stratification of fertiliser in a water-limited environment

Jin, Kemo; Shen, Jianbo; Ashton, R. W.; White, R.P.; Dodd, Ian C.; Parry, M. A. J.; Whalley, W. R.

doi:10.1007/s11104-014-2249-8

Cited by 41 publications

(33 citation statements)

References 79 publications

(85 reference statements)

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“…Soil conditions in semiarid environments limit the growth of fine roots. Several authors have noted that soil dryness significantly affects the capacity of fine roots to extend themselves because the high resisting penetration by the low soil matric potential [42,44,62]. For example, in a study on Fagus sylvatica L., Meier and Leuschner [63] found that the drought caused shortening of fine roots and consequently reduced specific root length.…”

Section: Discussionmentioning

confidence: 99%

Trade-Offs between Drought Survival and Rooting Strategy of Two South American Mediterranean Tree Species: Implications for Dryland Forests Restoration

Ovalle

Arellano

Ginocchio

2015

Forests

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Differences in water-acquisition strategies of tree root systems can determine the capacity to survive under severe drought. We evaluate the effects of field water shortage on early survival, growth and root morphological variables of two South American Mediterranean tree species with different rooting strategies during two growing seasons. One year-old Quillaja saponaria (deep-rooted) and Cryptocarya alba (shallow-rooted) seedlings were established under two watering treatments (2 L· week −1 · plant −1 and no water) in a complete randomized design. Watering improved the final survival of both species, but the increase was only significantly higher for the shallow-rooted species. The survival rates of deep-and shallow-rooted species was 100% and 71% with watering treatment, and 96% and 10% for the unwatered treatment, respectively. Root morphological variables of deep-rooted species such as surface area, volume, and diameter were higher under unwatered treatment. On the other hand, shallow-rooted species had a higher total root dry mass, length, surface area with watering treatments. Our findings suggest that deep-rooted species are highly recommended for reforestation in dry conditions, even under low soil water availability. Water supplements during the summer season can attenuate the differences between deep-and shallow-rooted species in their ability to survive drought during the early stage. OPEN ACCESSForests 2015, 6 3734

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Section: Discussionmentioning

confidence: 99%

Trade-Offs between Drought Survival and Rooting Strategy of Two South American Mediterranean Tree Species: Implications for Dryland Forests Restoration

Ovalle

Arellano

Ginocchio

2015

Forests

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“…Paradoxically, when wheat plants were grown in soilfilled rhizotrons (1.4 m deep) with nutrients (both N and P) banded at 0-40 or 60-100 cm below the soil surface and the soil allowed to dry (simulating a terminal drought stress), the greatest RLD detected at 1.4 m occurred with the surface fertilizer application (Jin et al, 2015). However, fertilizer banding (stratification) and local placement (patches) can elicit different responses.…”

Section: Lateral Root Proliferation In Response To Local Nutrient Avamentioning

confidence: 99%

Can we manipulate root system architecture to control soil erosion?

Ola

Dodd

Quinton

2015

SOIL

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Abstract. Soil erosion is a major threat to soil functioning. The use of vegetation to control erosion has long been a topic for research. Much of this research has focused on the above-ground properties of plants, demonstrating the important role that canopy structure and cover plays in the reduction of water erosion processes. Less attention has been paid to plant roots. Plant roots are a crucial yet under-researched factor for reducing water erosion through their ability to alter soil properties, such as aggregate stability, hydraulic function and shear strength. However, there have been few attempts to specifically manipulate plant root system properties to reduce soil erosion. Therefore, this review aims to explore the effects that plant roots have on soil erosion and hydrological processes, and how plant root architecture might be manipulated to enhance its erosion control properties. We demonstrate the importance of root system architecture for the control of soil erosion. We also show that some plant species respond to nutrient-enriched patches by increasing lateral root proliferation. The erosional response to root proliferation will depend upon its location: at the soil surface dense mats of roots may reduce soil erodibility but block soil pores thereby limiting infiltration, enhancing runoff. Additionally, in nutrient-deprived regions, root hair development may be stimulated and larger amounts of root exudates released, thereby improving aggregate stability and decreasing erodibility. Utilizing nutrient placement at specific depths may represent a potentially new, easily implemented, management strategy on nutrient-poor agricultural land or constructed slopes to control erosion, and further research in this area is needed.

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“…Other soil-based growth systems provide relatively thin layers of soil bordered by one or two transparent surfaces to visualise roots pressed against them, thus collapsing a variable fraction of the entire root system in 3D against a transparent surface for a 2D representation (Neumann et al , 2009). Such 2D systems have been reported for the dicotyledonous species Arabidopsis thaliana (Devienne-Barret et al , 2006, Rellan-Alvarez et al , 2015), tomato (Dresbøll et al , 2013, Rellan-Alvarez et al , 2015), lupine (Leitner et al ., 2014), sugar beet (Bodner et al , 2017), or monocots such as rice (Price et al , 2002, Shrestha et al , 2014), and wheat (Jin et al , 2015). These systems have allowed testing of plant growth behaviour in waterlogging (Dresbøll et al , 2013), low moisture stress (Avramova et al , 2016, Durand et al , 2016) or contrasting nutrient availability conditions (Jin et al , 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Such 2D systems have been reported for the dicotyledonous species Arabidopsis thaliana (Devienne-Barret et al , 2006, Rellan-Alvarez et al , 2015), tomato (Dresbøll et al , 2013, Rellan-Alvarez et al , 2015), lupine (Leitner et al ., 2014), sugar beet (Bodner et al , 2017), or monocots such as rice (Price et al , 2002, Shrestha et al , 2014), and wheat (Jin et al , 2015). These systems have allowed testing of plant growth behaviour in waterlogging (Dresbøll et al , 2013), low moisture stress (Avramova et al , 2016, Durand et al , 2016) or contrasting nutrient availability conditions (Jin et al , 2015). With the exception of two previous studies (Shrestha et al , 2014, Jin et al , 2015), the growth systems for such studies were ≤ 1m in height (Rellan-Alvarez et al , 2015, Avramova et al , 2016), which limited analyses to early growth phases of most plants.…”

Section: Introductionmentioning

confidence: 99%

“…These systems have allowed testing of plant growth behaviour in waterlogging (Dresbøll et al , 2013), low moisture stress (Avramova et al , 2016, Durand et al , 2016) or contrasting nutrient availability conditions (Jin et al , 2015). With the exception of two previous studies (Shrestha et al , 2014, Jin et al , 2015), the growth systems for such studies were ≤ 1m in height (Rellan-Alvarez et al , 2015, Avramova et al , 2016), which limited analyses to early growth phases of most plants. Although the constrained growth in such containers is distinct from plant growth in the field, the results obtained are informative and robotic platforms for 2D growing root phenotyping have been developed (Nagel et al , 2012, Wu et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

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Affordable and robust phenotyping framework to analyse root system architecture of soil-grown plants

Bontpart

Concha

Giuffrida

et al. 2019

Preprint

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The analysis of root system growth, root phenotyping, is important to inform efforts to enhance plant resource acquisition from soils. However, root phenotyping remains challenging due to soil opacity and requires systems that optimize root visibility and image acquisition. Previously reported systems require costly and bespoke materials not available in most countries, where breeders need tools to select varieties best adapted to local soils and field conditions. Here, we present an affordable soil-based growth container (rhizobox) and imaging system to phenotype root development in greenhouses or shelters. All components of the system are made from commodity components, locally available worldwide to facilitate the adoption of this affordable technology in low-income countries. The rhizobox is large enough (~6000 cm2 visible soil) to not restrict vertical root system growth for at least seven weeks after sowing, yet light enough (~21 kg) to be routinely moved manually. Support structures and an imaging station, with five cameras covering the whole soil surface, complement the rhizoboxes. Images are acquired via the Phenotiki sensor interface, collected, stitched and analysed. Root system architecture (RSA) parameters are quantified without intervention. RSA of a dicot (chickpea, Cicer arietinum L.) and a monocot (barley, Hordeum vulgare L.) species, which exhibit contrasting root systems, were analysed. The affordable system is relevant for efforts in Ethiopia and elsewhere to enhance yields and climate resilience of chickpea and other crops for improved food security.Significance StatementAn affordable system to characterize root system architecture of soil-grown plants was developed. Using commodity components, this will enable local efforts world-wide to breed for enhanced root systems.

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Wheat root growth responses to horizontal stratification of fertiliser in a water-limited environment

Cited by 41 publications

References 79 publications

Trade-Offs between Drought Survival and Rooting Strategy of Two South American Mediterranean Tree Species: Implications for Dryland Forests Restoration

Trade-Offs between Drought Survival and Rooting Strategy of Two South American Mediterranean Tree Species: Implications for Dryland Forests Restoration

Can we manipulate root system architecture to control soil erosion?

Affordable and robust phenotyping framework to analyse root system architecture of soil-grown plants

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