Gene flow from Clearfield® rice to weedy rice under field conditions
Imidazolinone-herbicide-resistant Clearfield® (CL) rice permits the selective chemical control of weedy rice (Oryza sativa), a major weed problem in South-East Asian rice growing countries. However, there is major concern involving resistant individuals resulting from gene flow as the cultivated and...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54371/1/Gene%20flow%20from%20Clearfield%C2%AE%20rice%20to%20weedy%20rice%20under%20field%20conditions.pdf |
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| author | Engku, A. K. Mazlan, Norida Juraimi, Abdul Shukor Yusop, Mohd Rafii Abdullah, Siti Nor Akmar Alam, Mohamad Amirul |
| author_facet | Engku, A. K. Mazlan, Norida Juraimi, Abdul Shukor Yusop, Mohd Rafii Abdullah, Siti Nor Akmar Alam, Mohamad Amirul |
| author_sort | Engku, A. K. |
| collection | UPM |
| description | Imidazolinone-herbicide-resistant Clearfield® (CL) rice permits the selective chemical control of weedy rice (Oryza sativa), a major weed problem in South-East Asian rice growing countries. However, there is major concern involving resistant individuals resulting from gene flow as the cultivated and weedy rice live side by side in the fields. An experiment was conducted in the rice fields of Kuala Rompin, Pahang, Malaysia to determine which Clearfield® rice cultivars and weedy rice cultivars are more prone to hybridization, and the effect on distance between the pollen donor and receptor plants. The experiment was piloted in a split plot design with four replications. Encircled population technique was used to determine the distance between the Clearfield® rice and detection of hybrids (F1). Resistance of progeny was determined after spraying with OnDuty™ and the confirmation of hybrids was done using the SSR primer RM251. Higher survival rate was recorded with cv. CL2 which was significantly different from cv. CL1. Weedy rice cultivar V1 and V2 in CL1 plots differed significantly from the same cultivar from CL2 plots. However, no significant difference was observed between weedy rice cultivars of V3 and V4, either in CL1 or CL2 plots. No survivors were found after second spraying. Suspected hybrids were found up to 5 m however the rate was much lower compared to only 1 m from the CL plots. |
| first_indexed | 2024-03-06T09:20:28Z |
| format | Article |
| id | upm.eprints-54371 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:20:28Z |
| publishDate | 2016 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | dspace |
| spelling | upm.eprints-543712018-03-14T08:26:33Z http://psasir.upm.edu.my/id/eprint/54371/ Gene flow from Clearfield® rice to weedy rice under field conditions Engku, A. K. Mazlan, Norida Juraimi, Abdul Shukor Yusop, Mohd Rafii Abdullah, Siti Nor Akmar Alam, Mohamad Amirul Imidazolinone-herbicide-resistant Clearfield® (CL) rice permits the selective chemical control of weedy rice (Oryza sativa), a major weed problem in South-East Asian rice growing countries. However, there is major concern involving resistant individuals resulting from gene flow as the cultivated and weedy rice live side by side in the fields. An experiment was conducted in the rice fields of Kuala Rompin, Pahang, Malaysia to determine which Clearfield® rice cultivars and weedy rice cultivars are more prone to hybridization, and the effect on distance between the pollen donor and receptor plants. The experiment was piloted in a split plot design with four replications. Encircled population technique was used to determine the distance between the Clearfield® rice and detection of hybrids (F1). Resistance of progeny was determined after spraying with OnDuty™ and the confirmation of hybrids was done using the SSR primer RM251. Higher survival rate was recorded with cv. CL2 which was significantly different from cv. CL1. Weedy rice cultivar V1 and V2 in CL1 plots differed significantly from the same cultivar from CL2 plots. However, no significant difference was observed between weedy rice cultivars of V3 and V4, either in CL1 or CL2 plots. No survivors were found after second spraying. Suspected hybrids were found up to 5 m however the rate was much lower compared to only 1 m from the CL plots. Czech Academy of Agricultural Sciences 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54371/1/Gene%20flow%20from%20Clearfield%C2%AE%20rice%20to%20weedy%20rice%20under%20field%20conditions.pdf Engku, A. K. and Mazlan, Norida and Juraimi, Abdul Shukor and Yusop, Mohd Rafii and Abdullah, Siti Nor Akmar and Alam, Mohamad Amirul (2016) Gene flow from Clearfield® rice to weedy rice under field conditions. Plant Soil and Environment, 62 (1). pp. 16-22. ISSN 1214-1178; ESSN: 1805-9368 http://www.agriculturejournals.cz/web/pse.htm?type=article&id=616_2015-PSE Herbicide resistance; Hybridization; SSR primer; Progeny; Malaysian rice 10.17221/616/2015-PSE |
| spellingShingle | Herbicide resistance; Hybridization; SSR primer; Progeny; Malaysian rice Engku, A. K. Mazlan, Norida Juraimi, Abdul Shukor Yusop, Mohd Rafii Abdullah, Siti Nor Akmar Alam, Mohamad Amirul Gene flow from Clearfield® rice to weedy rice under field conditions |
| title | Gene flow from Clearfield® rice to weedy rice under field conditions |
| title_full | Gene flow from Clearfield® rice to weedy rice under field conditions |
| title_fullStr | Gene flow from Clearfield® rice to weedy rice under field conditions |
| title_full_unstemmed | Gene flow from Clearfield® rice to weedy rice under field conditions |
| title_short | Gene flow from Clearfield® rice to weedy rice under field conditions |
| title_sort | gene flow from clearfield r rice to weedy rice under field conditions |
| topic | Herbicide resistance; Hybridization; SSR primer; Progeny; Malaysian rice |
| url | http://psasir.upm.edu.my/id/eprint/54371/1/Gene%20flow%20from%20Clearfield%C2%AE%20rice%20to%20weedy%20rice%20under%20field%20conditions.pdf |
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