منابع مشابه
Plant water uptake in drying soils.
Over the last decade, investigations on root water uptake have evolved toward a deeper integration of the soil and roots compartment properties, with the goal of improving our understanding of water acquisition from drying soils. This evolution parallels the increasing attention of agronomists to suboptimal crop production environments. Recent results have led to the description of root system ...
متن کاملTreatment of expansive soils with quality saline pore water by cyclic drying and wetting
Expansive soils can be found in many parts of the world particularly in arid and semi-arid regions. These soilspose a significant hazard to civil engineering structures due to its high swelling and shrinkage potential. This paperpresents the results of an experimental program developed to investigate the effect of cyclic drying and wetting on theswelling potential of expansive soils with variou...
متن کاملRehydration versus Growth-induced Water Uptake in Plant Tissues.
Experiments show that the rate of water uptake by living tissues external to mature xylem of cotton stems (Gossypium hirsutum L. Auburn 7-683) is very similar to the corresponding curves for leaf tissue. In both cases one obtains a two-phase curve with phase I corresponding to passive rehydration and phase II pertaining to active growth.A theory of water movement in plant tissue first proposed ...
متن کاملRoot Growth and Water Uptake by Maize Plants in Drying Soil
Sharp, R. E and Da vies, W. J. 1985. Root growth and water uptake by maize plants in drying soil.— J. exp. Bot. 36: 1441-1456. The influence of soil drying on maize (Zea mays L.) root distribution and use of soil water was examined using plants growing in the greenhouse in soil columns. The roots of plants which were watered well throughout the 18 d experimental period penetrated the soil profi...
متن کاملReconstructing plant root area and water uptake profiles
A major challenge in plant ecology is quantifying how roots interact with the soil to obtain water and nutrients. Stable isotope analysis of hydrogen and oxygen bound in plant and soil water is one of the best and least destructive methods for elucidating plant-soil interactions. Plant roots obtain water from various depths in the soil and the isotopic signature of plant stem water reflects the...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2014
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.113.233486