Tolerance of Trifolium subterraneum cultivars to low pH

Kim M.K., Edwards D.G. and Asher C.J. (1985) Tolerance of Trifolium subterraneum cultivars to low pH. Australian Journal of Agricultural Research, 36 4: 569-578. doi:10.1071/AR9850569


Author Kim M.K.
Edwards D.G.
Asher C.J.
Title Tolerance of Trifolium subterraneum cultivars to low pH
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1985
Sub-type Article (original research)
DOI 10.1071/AR9850569
Volume 36
Issue 4
Start page 569
End page 578
Total pages 10
Subject 1100 Agricultural and Biological Sciences
Abstract Eleven cultivars of Trifolium subterraneum and Trifolium semipilosum cv. Safari were grown with adequate combined nitrogen for 27 days in flowing solution culture with controlled nutrient concentrations at constant pH values ranging from 3.5 to 6.5. A solution pH of 3.5 was lethal to all cultivars, but growth was in all cases vigorous at pH 4.0 (RGR 15.2-16.9 g 100 g-1 day-1). There were no significant effects of pH over the range of 4.0-6.5 on the yield of any clover cultivar. The results are discussed in relation to an earlier study suggesting greater tolerance of subterranean clover to pH values below 4.0. Phosphorus toxicity symptoms developed in all subterranean clover cultivars with the intensity of symptom development increasing with solution pH from 4.5 to 6.5. The concentration of phosphorus in the older leaves decreased as the solution pH was increased from 4.0 to 4.5, and then increased with further increase in pH, reaching values > 1.0%. Rates of phosphorus absorption followed a similar pattern of response to solution pH. Results are discussed with reference to previously reported effects of pH on phosphorus uptake.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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