Root Development of Perennial Grasses and Its Relation to Soil Conditions

Sprague, Howard B.

doi:10.1097/00010694-193309000-00003

Cited by 51 publications

(55 citation statements)

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“…(iii) Plasticity of branching: Nobbe (1862) and Hoveler (1892) were perhaps the first to demonstrate the propensity of lateral branches to proliferate in more fertile soil zones, an observation extended in natural soils by Sprague (1933), in fertilizer bands by Duncan & Ohlrogge (1958) and in controlled conditions by Hackett (1972) and by Drew and his co-workers [Drew, Saker & Ashley (1973) and later papers].…”

Section: Types Of Root Systemsmentioning

confidence: 99%

An Architectural Approach to the Comparative Ecology of Plant Root Systems

1987

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SUMMARYAlthough plants devote a large proportion of their resources to roots, we have a poor understanding of the constraints under which root systen\s function. Roots are much less variable morphologically than leaves and it is likely that root systems rather than individual roots are the focus of natural selection. In other words, architecture is more important than morphology. Existing classifications of root systems, based on the developmental model, have failed to provide much insight into their functioning and an alternative, topological model is outlined, in which the link is the basic unit of classification. Other components of the architecture of root systems, including link lengths, branching angles and diameters, are considered and the ecological implications of variation in each is discussed.Simulation models of transport and space exploration are discussed and it is shown that resource cost, transport efficiency and exploration efficiency cannot be simultaneously minimized and that optimum form may vary with the mobility of the resource. In general, a 'herringbone' structure seems to be the most efficient at exploration of space but the least transport-efficient and the most expensive.

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Section: Types Of Root Systemsmentioning

confidence: 99%

An Architectural Approach to the Comparative Ecology of Plant Root Systems

1987

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“…Death of some roots, however, would not necessarily be detrimental to subsequent plant growth, as the size of the shoot would be reduced, with a resultant decrease in need for water and mineral nutrients. More serious would be a decrease in rooting depth as reported by Sprague (1933), Hanson and Stoddart (1940), Weaver (1950), and Browns and Box (1964). This would reduce the volume of soil the plant could utilise.…”

Section: Resultsmentioning

confidence: 91%

Root growth ofLolium perennel.

Evans¹

1971

New Zealand Journal of Agricultural Research

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ABSTRACIThe responses of roots of Lolium perenne plants subjected to various levels of defoliation and shading were examined.A single defoliation caused a rapid drop in root elongation followed by a more gradual recovery, the most severe defoliation having the greatest effect. Shoot and root weights were reduced, but when root elongation had recovered to the control level the shoot/root ratios did not differ from the controls.Repeated defoliation caused a prolonged depression of root elongation, but some recovery occurred. The most severe treatment resulted in considerable root death.Root elongation of shaded plants at first decreased steadily and then increased.Both defoliation and shading caused increases in the length per unit dry weight of roots.

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“…Both form true roots. Roots of Poa pratensis begin to grow in March in the northeast (Stuckey 1941) at air and soil temperatures below 45 degrees F (Sprague 1933). Maximum root elongation is in April (Stuckey 1941).…”

Section: Reproductionmentioning

confidence: 99%

“…Maximum root elongation is in April (Stuckey 1941). Unlike rhizomes, roots cease formation and elongation in midsummer (Stuckey 1941, Sprague 1933 at temperatures above 80 degrees F (Brown 1939). Darrow (1939) found that roots incubated at 15 to 25 degrees C were whiter, more succulent and twice as long as those incubated at 35 degree C, perhaps helping to explain the apparently greater competitive advantage and persistence of Poa in cooler climates.…”

Section: Reproductionmentioning

confidence: 99%

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A Floristic Inventory and Vegetation Survey of Three Dolomite Prairies in Northeastern Illinois

et al. 2015

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To the User:Element Stewardship Abstracts (ESAs) are prepared to provide The Nature Conservancy's Stewardship staff and other land managers with current management-related information on those species and communities that are most important to protect, or most important to control. The abstracts organize and summarize data from numerous sources including literature and researchers and managers actively working with the species or community.We hope, by providing this abstract free of charge, to encourage users to contribute their information to the abstract. This sharing of information will benefit all land managers by ensuring the availability of an abstract that contains up-to-date information on management techniques and knowledgeable contacts. Contributors of information will be acknowledged within the abstract and receive updated editions. To contribute information, contact the editor whose address is listed at the end of the document.For ease of update and retrievability, the abstracts are stored on computer at the national office of The Nature Conservancy. This abstract is a compilation of available information and is not an endorsement of particular practices or products.Please do not remove this cover statement from the attached abstract.Authors of this Abstract: N. Sather, MRO © THE NATURE CONSERVANCY

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Root Development of Perennial Grasses and Its Relation to Soil Conditions

Cited by 51 publications

References 0 publications

An Architectural Approach to the Comparative Ecology of Plant Root Systems

An Architectural Approach to the Comparative Ecology of Plant Root Systems

Root growth ofLolium perennel.

A Floristic Inventory and Vegetation Survey of Three Dolomite Prairies in Northeastern Illinois

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