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ความหลากหลายทางพันธุกรรมและโครงสร้างประชากรของข้าววัชพืชในประเทศไทย Thai Agricultural
Anupong Wongtamee; Chanya Maneechote; Benjavan Rerkkasem; Sansanee Jamjod.
Weedy rice (Oryza sativa f. spontanea) is one of most serious weeds in direct-seeded rice production. High genetic diversity and adaptability of weedy rice made it very difficult to control in the rice field. This study aim to assess genetic diversity and population structure of weedy rice populations from Lower North, Northeast and Central of Thailand in wet of 2009 using twelve microsatellite markers. Genetic diversity and population structure of weedy rice were determined and compared with seven common wild rice populations and seven check varieties commonly grown in these regions. Weedy rice populations in this present study were hybrid between common wild rice and crop rice. The population structure of them was structured into 2 clusters according to...
Tipo: Collection Palavras-chave: Weedy rice; Genetic diversity; Population structure; Gene flow; ข้าววัชพืช; ความหลากหลายทางพันธุกรรม; โครงสร้างประชากร; การแลกเปลี่ยนยีน; ประเทศไทย.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5333
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ความหลากหลายของสัตว์ไม่มีกระดูกสันหลังในระบบนิเวศข้าวไร่ ที่อำภอบ้านแฮด จังหวัดขอนแก่น Thai Agricultural
Patchai Souksai; Yupa Hanboonsong.
The research studies an arthropod community in upland rice ecosystem at farmers’ field in Ban Had District, Khon Kaen Province, Northeast Thailand, was conducted during May to October 2011. Samples were collected using light traps, yellow sticky traps, sweep nets and visual observation methods. A total of 7,195 individual arthropods from 160 species were recorded in this study. Among the sampling methods, 140 species were recorded using light trap, followed by 108, 58 and 30 species collected by using yellow sticky trap, sweep net and visual observation, respectively. The arthropod community of this studies constituted of four guilds as phytophagous, predator, parasitoid and scavenger. The predator (60.93 % of total individuals and 47.17% of total species)...
Tipo: PhysicalObject Palavras-chave: Arthropods; Upland rice ecosystem; Community structure; Diversity; Rice growth; Pest control program; Ban Had district; Khon Kaen province; Northeast; สัตว์ไม่มีกระดูกสันหลัง; ระบบนิเวศข้าวไร่; โครงสร้างประชากร; อนุกรมวิธาน; ความหลากหลาย; จ.ขอนแก่น.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5794
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