Whelan, B.R. and Edwards, D.G. (1975) Uptake of potassium by seraria anceps and macroptilium atropurpureum from the same standard solution culture. Australian Journal of Agricultural Research, 26 (5). pp. 819-829.
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Abstract
The effect of K supply on growth and K uptake by (a) S. ancepts [= S. sphacelata] cv. Nandi and (b) Macroptilium atropurpureum cv. Siratro grown in association in standard nutrient solution was studied. Different degrees of competition were introduced by introducing 6-, 12- or 18-day-old plants of (b) to the pots at the same time as 12-day-old plants of (a). Competition between the 2 species was compared at a high and a low rate of K supply. Plants of (a) took up K at a much greater rate than those of (b) grown in association. Although K uptake rates decreased more rapidly in (a) as the solution supply became exhausted, they generally remained higher than those in (b). The higher K contents obtained in (a) than in (b) grown in association ensured a superior ability for (a) to continue growth following exhaustion of the K supply. Rapid early growth of (b) in some situations may provide some advantage in competing for available K because of greater root development
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Agriculture, Queensland University, St. Lucia, Qld., Australia 4067 |
| Subjects: | Plant Protection Soil Science and Microbiology > Microbiology |
| Divisions: | General |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 20 Mar 2012 14:09 |
| Last Modified: | 20 Mar 2012 14:09 |
| Official URL: | http://dx.doi.org/10.1071/AR9750819 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3991 |
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