Full TGIF Record # 251448
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Web URL(s):https://academic.oup.com/aob/article/33/3/571/159349/Effects-of-Soil-Nutrients-and-Moisture-on-Root
    Last checked: 03/02/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide Page
Publication Type:
i
Refereed
Author(s):Davidson, R. L.
Author Affiliation:C.S.I.R.O. Pastoral Research Laboratory, Armidale, N.S.W., Australia
Title:Effects of soil nutrients and moisture on root/shoot ratios in Lolium perenne L. and Trifolium repens L.
Source:Annals of Botany. Vol. 33, No. 3, June 1969, p. 571-577.
Publishing Information:London, England, United Kingdom: Academic Press Inc. Limited
# of Pages:7
Keywords:TIC Keywords: Cultivar evaluation; Cultivar variation; Growth factors; Growth studies; Lolium perenne; Nitrogen; Nutrients; Phosphorus; Root-shoot ratio; Soil moisture; Trifolium repens
Abstract/Contents:"The dry weights of foliage and roots (excluding stembases) were compared in a 33^DX22 factorial experiment with Lolium perenne L. and Trifolium repens L. grown in pots with three nitrogen (0-300 ppm N), phosphorus (0-300 ppm P), and soil moisture (pF 3.2, pF 2.4, and waterlogged) treatments, each duplicated. Root/shoot ratios were influenced significantly (P < 0.001) by N, P, and W (soil moisture), but these main effects were qualified by highly significant first-order interactions and second-order interactions which included N and P. The lowest R/S ratios occurred where N, P, and W were all non-limiting, and the highest where there was an imbalance of these factors. The explanation suggested is that a decrease in the availability of N, P, or W causes an increase in the relative weight of roots, but in the presence of N, P, or W deficiency an increase in any one of these factors causes a further increase in the R/S ratio by increasing the relative efficiency of the foliage."
Language:English
References:11
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Davidson, R. L. 1969. Effects of soil nutrients and moisture on root/shoot ratios in Lolium perenne L. and Trifolium repens L.. Ann. Bot. 33(3):p. 571-577.
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https://academic.oup.com/aob/article/33/3/571/159349/Effects-of-Soil-Nutrients-and-Moisture-on-Root
    Last checked: 03/02/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide Page
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