Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum
8 pages, figures, and tables statistics.
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| Format: | artículo biblioteca |
| Language: | English |
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Blackwell Publishing
1988
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| Subjects: | Isoproturon, Photosynthetic apparatus, L. rigidum, |
| Online Access: | http://hdl.handle.net/10261/35770 |
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dig-ica-es-10261-357702020-09-16T06:41:55Z Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum Felipe, Mª Rosario de Golvano, Maria Pilar Lucas, M. Mercedes Lang, P. Pozuelo, José Manuel Isoproturon Photosynthetic apparatus L. rigidum 8 pages, figures, and tables statistics. The effect of isoproturon on the ultrastructure of the photosynthetic apparatus, ribulose bisphosphate carboxylase activity, protein and chlorophyll contení, and the grain yield was investigated in two wheat cultivars (Triíicum sativum L, cvs Gastan and Esquiladle) and a weed (Lolium rigidum Gaud.). Field experiments used applications of 1-65 and 2-5 kg a.i. ha~' isoproturon post-emergence, and growth chamber experiments used nutrient solution with the addition of isoproturon (l-7x!0~4M). The ultrastructure of the photosynthetic apparatus of the cv. Esquilache was much affected by the herbicide. In the case of cv. Gastan, slight disorganization of the grana and intergrana was observed. Isoproturon decreased the activity of ribulose bisphosphate carboxylase. A decrease in protein and chlorophyll content was also observed in the cv. Esquilache and in L. rigidum. These alterations were much less evident in the cv. Gastan, where, moréover, no loss of protein occurred. The yield of the treated cv. Gastan plants was slightly greater than that of the control plants in two consecutive years. However, the yields of the cv. Esquilache were significantly less when the herbicide was applied in the first year at commencement of tillering in a dry season but not when applied at an advanced stage as in the second year in a wet season The authors are grateful to Mrs M.L. Melendo, M.C. Mesa, A. Vicioso and M.A. Escudero for technical assistance, and to the Electron Microscopy Laboratory and the Department of Application of Isotopes in Plant Biology for their facilities. The assistance in the field experiment of J. Rodríguez and C. Lacasta is also gratefully acknowledged. This work was supported by a grant from the CAICYT of Spain. Peer reviewed 2011-05-18T07:32:35Z 2011-05-18T07:32:35Z 1988 artículo http://purl.org/coar/resource_type/c_6501 Weed Research 28: 85-92 (1988) 0043-1737 http://hdl.handle.net/10261/35770 en none Blackwell Publishing |
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biblioteca |
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Europa del Sur |
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Biblioteca del ICA España |
| language |
English |
| topic |
Isoproturon Photosynthetic apparatus L. rigidum Isoproturon Photosynthetic apparatus L. rigidum |
| spellingShingle |
Isoproturon Photosynthetic apparatus L. rigidum Isoproturon Photosynthetic apparatus L. rigidum Felipe, Mª Rosario de Golvano, Maria Pilar Lucas, M. Mercedes Lang, P. Pozuelo, José Manuel Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| description |
8 pages, figures, and tables statistics. |
| format |
artículo |
| topic_facet |
Isoproturon Photosynthetic apparatus L. rigidum |
| author |
Felipe, Mª Rosario de Golvano, Maria Pilar Lucas, M. Mercedes Lang, P. Pozuelo, José Manuel |
| author_facet |
Felipe, Mª Rosario de Golvano, Maria Pilar Lucas, M. Mercedes Lang, P. Pozuelo, José Manuel |
| author_sort |
Felipe, Mª Rosario de |
| title |
Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| title_short |
Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| title_full |
Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| title_fullStr |
Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| title_full_unstemmed |
Differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and L. rigidum |
| title_sort |
differential effects of isoproturon on the photosynthetic apparatus and yield of two varieties of wheat and l. rigidum |
| publisher |
Blackwell Publishing |
| publishDate |
1988 |
| url |
http://hdl.handle.net/10261/35770 |
| work_keys_str_mv |
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| _version_ |
1777663593393684480 |