Trifolium ambiguum (kura, Pellett or honey clover) is a potentially important clover species, although nodule occurrence on its roots is rare, and evidence is lacking that it benefits from any association with rhizobia. The objective of this study was to ascertain the response patterns of this clover and 7 allied species to 35 diverse strains of Rhizobium trifolii.Diverse categories of plant response were defined in reciprocal inoculation tests. T. hybridum (alsike) and T. repens f. giganteum (Ladino) were benefited by 31 strains. Twenty-two strains brought about ineffective responses on T. incarnatum (crimson) and T. subterraneum (sub). T. ambiguum was only sparsely nodulated and not benefited by any of the strains. The rhizobia isolated from T. ambiguum brought about typical ranges of plant response of the seven other clover species tested. T. procumbens (low hop) and T. repens f. giganteum (Ladino) were benefited by all of the strains from T, ambiguum. Only three of the Pellett clover strains were effective on T. incarnatum and T. subterraneum. Nodules were not formed on T. ambiguum by any of 52 rhizobial strains from 26 ecologically related species contained in 23 leguminous genera.Probable explanations for the sparse nodulation and lack of effective response by T. ambiguum to rhizobia are suggested.
Synopsis Seedling corn plants grown on mulched soil contained less Mn than plants grown on bare soil. Although a marked Mn deficiency did not occur, evidence of an influence on plant physiology was indicated by an accumulation of free α‐amino‐N in very young plants. In soils normally low in available Mn mulching could critically affect the Mn nutrition of corn.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.