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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:
| 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
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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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| 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 |
| MSU catalog number: b2209341a |
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