Root dynamics of Bouteloua gracilis during short-term recovery from drought.

W. K. Lauenroth; O. E. Sala; D. G. Milchunas; R. W. Lathrop

doi:10.2307/2389714

Root dynamics of Bouteloua gracilis during short-term recovery from drought.

W. K. Lauenroth, O. E. Sala, D. G. Milchunas, R. W. Lathrop

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Abstract

Following a small rainfall event, surviving roots were able to absorb water at c40% of the rate of new roots, sufficient to restore non-stressed leaf water potentials within one day of watering. New root growth occurred c40h after watering. New roots never accounted for >15% of total root length but they made possible the continued response to increased water availability. The response of leaf water potential was influenced by previous water stress as well as by the amount of water added, but the response of root growth was independent of water stress when 15 mm of water was added and dependent upon water stress in the case of the addition of only 5 mm. -from Authors

Original language	English (US)
Pages (from-to)	117-124
Number of pages	8
Journal	Functional Ecology
Volume	1
Issue number	2
DOIs	https://doi.org/10.2307/2389714
State	Published - Jan 1 1987
Externally published	Yes

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics

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title = "Root dynamics of Bouteloua gracilis during short-term recovery from drought.",

abstract = "Following a small rainfall event, surviving roots were able to absorb water at c40% of the rate of new roots, sufficient to restore non-stressed leaf water potentials within one day of watering. New root growth occurred c40h after watering. New roots never accounted for >15% of total root length but they made possible the continued response to increased water availability. The response of leaf water potential was influenced by previous water stress as well as by the amount of water added, but the response of root growth was independent of water stress when 15 mm of water was added and dependent upon water stress in the case of the addition of only 5 mm. -from Authors",

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AU - Lathrop, R. W.

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N2 - Following a small rainfall event, surviving roots were able to absorb water at c40% of the rate of new roots, sufficient to restore non-stressed leaf water potentials within one day of watering. New root growth occurred c40h after watering. New roots never accounted for >15% of total root length but they made possible the continued response to increased water availability. The response of leaf water potential was influenced by previous water stress as well as by the amount of water added, but the response of root growth was independent of water stress when 15 mm of water was added and dependent upon water stress in the case of the addition of only 5 mm. -from Authors

AB - Following a small rainfall event, surviving roots were able to absorb water at c40% of the rate of new roots, sufficient to restore non-stressed leaf water potentials within one day of watering. New root growth occurred c40h after watering. New roots never accounted for >15% of total root length but they made possible the continued response to increased water availability. The response of leaf water potential was influenced by previous water stress as well as by the amount of water added, but the response of root growth was independent of water stress when 15 mm of water was added and dependent upon water stress in the case of the addition of only 5 mm. -from Authors

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Root dynamics of Bouteloua gracilis during short-term recovery from drought.

Abstract

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