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การสืบค้นหาแหล่งพันธุกรรมความต้านทานโรคใบหงิกและโรคเขียวเตี้ยของข้าวป่าและข้าวปลูก เพื่อใช้ในการปรับปรุงพันธุ์ Thai Agricultural
Kanuengnij Srivilai; Witchuda Rattanakarn; Suniyom Taprap; Rogelio Cabunagan.
Total of 130 rice accessions from IRRI were tested for resistance to rice ragged stunt virus (RRSV) and rice grassy stunt virus (RGSV). The viruses were transmitted by brown planthopper (BPH) vector. Virus-carrying BPH was transferred to healthy seedlings in mylar cakes. Disease symptom was observed and scored at 30 days after inoculation. Viral infection was also detected by ELISA test. Visual score showed RRSV and RGSV infection ranged from 5.00-78.57% and 7.14-100%, respectively. The results correspond to that of ELISA test, but the ELISA test gave higher percentage of infection. Based on percentage of infection and disease index, 12 accessions were identified as resistance to RRSV; 37 accessions as moderately resistance; 25 accessions as tolerance. No...
Tipo: PhysicalObject Palavras-chave: Wild rice; Cultivated rice; Ragged stunt disease; Grassy stunt disease; Plant disease resistance; Plant breeding; ข้าวป่า; ข้าวปลูก; โรคใบหงิก; โรคเขียวเตี้ย; เชื้อไวรัส; ความต้านทานโรคพืช; การปรับปรุงพันธุ์; แหล่งพันธุกรรม; การทดสอบพันธุ์.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5688
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การประเมินความคงตัวของความต้านทานต่อไวรัสใบด่างเขียวในแตงกวาจากสายพันธุ์การค้ารุ่น S2 และ S3 และกลุ่มที่เข้าสู่ inbred lines ที่ต้านทานต่อเชื้อ CGMMV Thai Agricultural
Premruethai Unruean; Kamol Lertrat; Petcharat Thummabenjapone.
Cucumber green mottle mosaic virus (CGMMV) is a member of Tobamovirus, it causes green mottle mosaic disease in cucurbits with the virus being transmitted through seed. The aims of this research were emphasized on evaluation the stability of CGMMV resistant phenotype in self fertilization generation S2 and S3 of new cucumber lines (10 lines) generated from commercial cucumber varieties and tentatively inbred lines(11 lines) from previously screening program. The results showed that the good candidate cucumber lines from commercial source which resistant (R) to moderate resistant (MR) to CGMMV were No.P10 line 6-1, No.P19 line 2-1 and No.P19 line 5-1. The self generation lines derived from No.P3 x P4 showed stability in R-MR phenotype. For tentatively...
Tipo: PhysicalObject Palavras-chave: Cucumber; Cucurbit virus disease; Plant breeding; Disease resistant; Variety screening; Commercial varieties; Inbred line; Cucumber green mottle mosaic virus; CGMMV; Tobamovirus; Green mottle mosaic disease; แตงกวา; เชื้อไวรัส; โรคไวรัสด่างเขียว; การปรับปรุงพันธุ์พืช; ความต้านทานโรค; การคัดเลือก; สายพันธุ์การค้า; สายพันธุ์แท้; ชั่วรุ่นผสมตัวเอง; การประเมินลักษณะความต้านทาน.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5772
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