The fate of surface roots of citrus seedlings in dry soil

Kosola, Kevin R.; Eissenstat, David M.

doi:10.1093/jxb/45.11.1639

Cited by 54 publications

(36 citation statements)

References 34 publications

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“…Fine roots at the soil surface may be beneficial in capturing water after a dry soil is rewetted (Kosola & Eissenstat 1994). Several experiments suggest that crop plants in a higher CO 2 atmosphere will have larger root systems that are more highly branched, especially at shallow depths, and this should increase the capacity for resource acquisition, but at lower efficiency (Pritchard & Rogers 2000).…”

Section: Fine-root Proliferation and Implications For Whole-plant Watmentioning

confidence: 99%

Plant water relations at elevated CO₂– implications for water‐limited environments

Wullschleger

Tschaplinski

Norby

2002

Plant Cell & Environment

370

278

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and drought are needed, as are whole-plant investigations that emphasize the integration of processes throughout the soil-plantatmosphere continuum. We suggest that the hydraulic principles that govern water transport provide an integrating framework that would allow CO 2 -induced changes in stomatal conductance, leaf water potential, root growth and other processes to be uniquely evaluated within the context of whole-plant hydraulic conductance and water transport efficiency.

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Section: Fine-root Proliferation and Implications For Whole-plant Watmentioning

confidence: 99%

Plant water relations at elevated CO₂– implications for water‐limited environments

Wullschleger

Tschaplinski

Norby

2002

Plant Cell & Environment

370

278

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“…Citrus roots, for example, when exposed to high temperatures and prolonged drought in sandy soil, strongly decrease respiration but exhibit little or no root shedding (Kosola and Eissenstat 1994;Bryla et al 1997;Espeleta and Eissenstat 1998). In addition, citrus roots that were exposed to dry soil were unresponsive to an increase in soil temperature (i.e., respiration remained low, regardless of temperature), while roots in wet soil responded to changes in soil temperature by slowing rates at higher temperatures (roots exposed to temperatures>25°C for more than 3 days had the same respiration rate as those at 25°C; Bryla et al 1997Bryla et al , 2001).…”

Section: Effects Of Water and Temperaturementioning

confidence: 99%

The Efficiency of Nutrient Acquisition over the Life of a Root

Eissenstat

Volder

2005

Ecological Studies

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“…The median life span of fi brous roots for citrus trees is on the order of 100 days (Eissenstat and Anchor 1999 ) . Even under dry soil conditions, citrus trees will sustain previously formed roots for more than 2 months (Kosola and Eissenstat 1994 ) . On deep sandy soils, the surface 0-30 cm of the root zone can contain up to 40-50% of the fi brous root weight, and root densities tend to be highest beneath the drip line of the tree (MenocalBarberena 2000 ) .…”

Section: Soil Water Status and Nutrient Uptakementioning

confidence: 99%

“…A reduction in soil water potential can reduce water uptake (Syvertsen 1985 ) and root growth (Bevington and Castle 1985 ;Kosola and Eissenstat 1994 ) . Inadequate soil moisture supply may result in a more pronounced reduction in shoot growth compared to root growth.…”

Section: Interactive Effects Of Water and Nutrient Supply On Root Dismentioning

confidence: 99%

Nutrient Use Efficiency in Citrus

Scholberg

Morgan

2012

Advances in Citrus Nutrition

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During the past decades, commercial citrus producers throughout the world have been facing serious challenges including restrictions on water, fertilizer and agrochemical use, potential treats of devastating diseases, and fi erce competitions for global markets. In an era of increased focus on sustainable development, smart technologies, and resource conservation, there has been gradual shift from increasing yield and maximizing pro fi ts to making better use of technical innovations to ensure more ef fi cient use of fi nite resources including land, energy, water, and nutrients. Within this context, it is relevant for scientists to critically re fl ect on how to effectively integrate information related to physiological processes, pedoclimatic conditions, and management practices to increase nutrient use ef fi ciency (NUE) in citrus production systems. Understanding the processes controlling nutrient uptake is critical for development of management practices that enhance NUE while reducing nutrient losses and potential environmental impacts. However, one of the Abstract Citrus production systems are inherently complex, which may hamper ef fi cient resource management. This chapter aims to use a systems approach for structuring more ef fi cient management options for citrus production. It starts by providing a brief overview of production trends in major production regions and outlining the use of a systems-based approach for structuring more sustainable management practices. Starting with the physiological processes and mechanisms controlling nutrient uptake of young seedlings, resource capture and utilization are presented including root growth dynamics and nutrient interception capacity as affected by diurnal crop water use, temperature, and nutrient supply. Uptake processes are scaled-up to a tree level and linked to speci fi c environmental, crop development, and management aspects and integrated into generic conceptual models with special reference to the interactive effects of irrigation and fertility management as related to crop nutrient interception capacity. Then the scope is expanded to look at nutrient management at the fi eld level on an annual basis including tree nutrient allocation, environmental emissions, and development of annual nutrient budgets. In the fi nal section, future perspectives are provided for more effective use of modeling approaches for system design and more costeffective and sustainable resource use. KeywordsNutrient use ef fi ciency • Systems analysis • System design • Resource management • Modeling approaches

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The fate of surface roots of citrus seedlings in dry soil

Cited by 54 publications

References 34 publications

Plant water relations at elevated CO₂– implications for water‐limited environments

Plant water relations at elevated CO₂– implications for water‐limited environments

The Efficiency of Nutrient Acquisition over the Life of a Root

Nutrient Use Efficiency in Citrus

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The fate of surface roots of citrus seedlings in dry soil

Cited by 54 publications

References 34 publications

Plant water relations at elevated CO2– implications for water‐limited environments

Plant water relations at elevated CO2– implications for water‐limited environments

The Efficiency of Nutrient Acquisition over the Life of a Root

Nutrient Use Efficiency in Citrus

Contact Info

Product

Resources

About

Plant water relations at elevated CO₂– implications for water‐limited environments

Plant water relations at elevated CO₂– implications for water‐limited environments