Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum
Greenhouse experiments were conducted to evaluate the effect of the fungus Dactylaria higginsii on the interference of Cyperus rotundus (purple nutsedge) with Lycopersicon esculentum (tomato 'Agroset'). Cyperus rotundus plants established from tubers were planted at initial densities equiv...
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| Format: | Article |
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Weed Science Society of America
1999
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| Online Access: | http://psasir.upm.edu.my/id/eprint/113139/ |
| _version_ | 1848866139138949120 |
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| author | Kadir, J.B. Charudattan, R. Stall, W.M. Bewick, T.A. |
| author_facet | Kadir, J.B. Charudattan, R. Stall, W.M. Bewick, T.A. |
| author_sort | Kadir, J.B. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Greenhouse experiments were conducted to evaluate the effect of the fungus Dactylaria higginsii on the interference of Cyperus rotundus (purple nutsedge) with Lycopersicon esculentum (tomato 'Agroset'). Cyperus rotundus plants established from tubers were planted at initial densities equivalent to 40, 80, 160, and 320 tubers m-2 with L. esculentum in 35-cm-diam pots. Cyperus rotundus plants were inoculated by spraying with a spore suspension of D. higginsii containing 0.5% Metamucil as a carrier. The treatments were Metamucil only, 104 conidia ml-1 + Metamucil, or 106 conidia ml-1 + Metamucil. In the absence of D. higginsii, C. rotundus at densities of 80, 160, and 320 tubers m-2 reduced L. esculentum yield by 14, 68, and 70%, respectively. In contrast, yield of L. esculentum treated with D. higginsii at 106 conidia ml-1 was equal to that in the weed-free control. The rate of disease increase (r(G)) was higher in treatments with 106 conidia ml-1 (r(G) = 0.126 to 0.136) compared to 104 conidia ml-1 (r(G) = 0.046 to 0.050). At 106 conidia ml-1, D. higginsii reduced the interference from C. rotundus, controlled C. rotundus better, and increased L. esculentum yield compared to the weedy checks. |
| first_indexed | 2025-11-15T14:15:51Z |
| format | Article |
| id | upm-113139 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:15:51Z |
| publishDate | 1999 |
| publisher | Weed Science Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1131392025-02-05T07:02:23Z http://psasir.upm.edu.my/id/eprint/113139/ Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum Kadir, J.B. Charudattan, R. Stall, W.M. Bewick, T.A. Greenhouse experiments were conducted to evaluate the effect of the fungus Dactylaria higginsii on the interference of Cyperus rotundus (purple nutsedge) with Lycopersicon esculentum (tomato 'Agroset'). Cyperus rotundus plants established from tubers were planted at initial densities equivalent to 40, 80, 160, and 320 tubers m-2 with L. esculentum in 35-cm-diam pots. Cyperus rotundus plants were inoculated by spraying with a spore suspension of D. higginsii containing 0.5% Metamucil as a carrier. The treatments were Metamucil only, 104 conidia ml-1 + Metamucil, or 106 conidia ml-1 + Metamucil. In the absence of D. higginsii, C. rotundus at densities of 80, 160, and 320 tubers m-2 reduced L. esculentum yield by 14, 68, and 70%, respectively. In contrast, yield of L. esculentum treated with D. higginsii at 106 conidia ml-1 was equal to that in the weed-free control. The rate of disease increase (r(G)) was higher in treatments with 106 conidia ml-1 (r(G) = 0.126 to 0.136) compared to 104 conidia ml-1 (r(G) = 0.046 to 0.050). At 106 conidia ml-1, D. higginsii reduced the interference from C. rotundus, controlled C. rotundus better, and increased L. esculentum yield compared to the weedy checks. Weed Science Society of America 1999 Article PeerReviewed Kadir, J.B. and Charudattan, R. and Stall, W.M. and Bewick, T.A. (1999) Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum. Weed Science, 47 (6). pp. 682-686. ISSN 0043-1745; eISSN: 0043-1745 https://www.cambridge.org/core/journals/weed-science/article/abs/effect-of-dactylaria-higginsii-on-interference-of-cyperus-rotundus-with-l-esculentum/81B82BB76CE3CDA351E47FE0FE2A316E 10.1017/s0043174500091335 |
| spellingShingle | Kadir, J.B. Charudattan, R. Stall, W.M. Bewick, T.A. Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title | Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title_full | Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title_fullStr | Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title_full_unstemmed | Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title_short | Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum |
| title_sort | effect of dactylaria higginsii on interference of cyperus rotundus with l. esculentum |
| url | http://psasir.upm.edu.my/id/eprint/113139/ http://psasir.upm.edu.my/id/eprint/113139/ http://psasir.upm.edu.my/id/eprint/113139/ |