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| Registros recuperados: 479 | |
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| Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong. |
| The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most serious insect pest of irrigated rice in the central and lower areas of Northern Thailand. In upper North of Thailand, the first and serious outbreak was found during year 2011 and 2012. The misused insecticide over a period of time with extensive and intensive application is causing BPH outbreak. Therefore, the goal of this research was to monitor the insecticide resistance of BPH in the Northern, Thailand. BPH were collected from 12 outbreak fields of the Northern region namely: Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Phrae, Tak, Phetchabun, Kamphaeng Phet, Phitsanulok, Phichit, Nakhon Sawan and Uthai Thani between the periods of 2010 to 2012. The toxicological tests (LD50) of... |
| Tipo: Collection |
Palavras-chave: BPH; Brown planthopper; Insecticide resistance; Toxicology test; Outbreak area; Northern; Rice; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ค่าความเป็นพิษ; พื้นที่ระบาด; ภาคเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5531 |
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| Sukanya Arunmit; Wantana Sriratanasa; Jintana Chaiwong. |
| The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most serious insect pest of irrigated rice in the central and lower areas of Northern Thailand. In upper North of Thailand, the first and serious outbreak was found during year 2011 and 2012. The misused insecticide over a period of time with extensive and intensive application is causing BPH outbreak. Therefore, the goal of this research was to monitor the insecticide resistance of BPH in the Northern, Thailand. BPH were collected from 12 outbreak fields of the Northern region namely: Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Phrae, Tak, Phetchabun, Kamphaeng Phet, Phitsanulok, Phichit, Nakhon Sawan and Uthai Thani between the periods of 2010 to 2012. The toxicological tests (LD50) of... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Brown planthopper (BPH); Insecticide resistance; Toxicology test (LD50); Outbreak area; Northern region; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ค่าความเป็นพิษ; พื้นที่ระบาด; ภาคเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5605 |
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| Tiravut Larptrakul; Sudarut Tripetchkul; Saengchai Akepratumchai; Songpon Koonsrisuk. |
| Objective of the present study was to investigate influence of transplanting methods, namely, parachute” and wet seeded culture, on growth, i.e., height and tiller number/bunch, incidence of disease outbreak, soil quality and yield of “Hommali 105” rice cultivated organically. Results showed that the transplanting methods played insignificant role on growth as well as the incidence of disease outbreak (p0.05). However, the “parachute” transplanting method led to higher tiller numbers/bunch and rice yield than that obtained with the wet seeded method, 27 against 5 tillers/bunch (p<0.05) and 1.7 folds, respectively. Further, during cultivation, soil qualities in terms of pH and content of organic matter, nitrogen and potassium appeared to be comparable... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Wetland rice; Tillering; Yield; Parachute; Organic paddy rice farming; ข้าวนาหว่าน; การแตกกอ; ผลผลิตข้าว; นาโยนกล้า; วิธีการย้ายกล้า; ระบบการปลูกข้าวอินทรีย์. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5451 |
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| Registros recuperados: 479 | |
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