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การทดสอบความต้านทานของพันธุ์/สายพันธุ์ข้าวต่อโรคขอบใบแห้ง และโรคไหม้คอรวง Thai Agricultural
Chana Srisompan; Panya Kamsanpun; Somsong Chotechuen.
Evaluation of rice varieties/lines against bacterial leaf blight (BLB) and neck blast (NB) is one of the activities that necessary for rice improvements. The experiments were carried out in experimental fields at Udon Thani Rice Research Center in 2014. A total of 479 and 200 rice varieties/lines from breeding programs and the rice germplasm bank were selected and evaluated for BLB and NB resistance, respectively. The clip inoculation method was used for BLB screening while NB screening was conducted in the field with natural infestation. The results showed that 19 varieties/lines were resistant to BLB and 164 varieties/lines were likely resistant to NB. The resistant cultivars/lines can be directly developed into resistant varieties or can be used as...
Tipo: Collection Palavras-chave: Bacterial leaf blight; Neck blast; Resistant variety; Rice germplasm bank; Breeding program; โรคขอบใบแห้ง; โรคไหม้คอรวง; พันธุ์ต้านทาน; ธนาคารเชื้อพันธุ์; โครงการปรับปรุงพันธุ์.
Ano: 2015 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5869
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อิทธิพลของการใช้สารเคมีป้องกันกำจัดโรคไหม้คอรวงในแปลงผลิตเมล็ดพันธุ์ขาวดอกมะลิ 105 Thai Agricultural
Teerawat Suwannual; Jumrat Sunyo.
Studies was conducted to determine the effects of fungicide usage on rice blast disease, caused by Pyricularia grisea (Cooke) Sacc. [= Magnaporthe grisea (Hebert) Barr] on rice cultivar KDML105 in Mae Hong Son Province. The four fungicides usage were isoprothiolane (Fuji one) tricyclazol (Beam 75%wp) Azoxystrobin + Difenoconazole (Ortiva 32 SC and Carbendazim (Cardazin-F). The results showed the four fungicides were use in rice KDML105 to be more effective in suppressing blast and protecting yield, compared to control (non-treat). The fungicides that Azoxystrobin + Difenoconazole was moderately resistant to leaf and neck blast, with the lowest percentage unfilled grains per panicle and have highest yield (669 kg/rai) with compare to the other.
Tipo: PhysicalObject Palavras-chave: Rice; Rice seeds; Khow Dok Mali 105; KDML 105; Seed production; Neck blast; Plant disease; Fungicide; Mae Hong Son province; เมล็ดพันธุ์ข้าว; พันธุ์ขาวดอกมะลิ 105; การผลิตเมล็ดพันธุ์; เชื้อรา; โรคไหม้คอรวง; การป้องกันโรคพืช; สารป้องกันกำจัดโรคไหม้; สารเคมีกำจัดเชื้อรา; ประสิทธิภาพการป้องกันโรค; จ.แม่ฮ่องสอน.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5665
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