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Please use this identifier to cite or link to this item: http://anchan.lib.ku.ac.th/agnet/handle/001/2149

ARN: TH201000002080
Authors: Parkpian Arunyanart
Nongrat Nilpanit
Rasamee Dhitikiattipong
พากเพียร อรัญนารถ
นงรัตน์ นิลพานิชย์
รัศมี ฐิติเกียรติพงศ์
Authors' affiliation: Rice Department, Bangkok (Thailand). Bureau of Rice Research and Development
Rice Department, Bangkok (Thailand). Bureau of Rice Research and Development
Rice Department, Bangkok (Thailand). Bureau of Rice Research and Development
Authors' affiliation (Thai): กรมการข้าว สำนักวิจัยและพัฒนาข้าว
กรมการข้าว สำนักวิจัยและพัฒนาข้าว
กรมการข้าว สำนักวิจัยและพัฒนาข้าว
Title: การใช้ผงเชื้อแบคทีเรียปฏิปักษ์ Bacillus subtilis ร่วมกับสารป้องกันกำจัดโรคพืชในการควบคุมโรคเมล็ดด่างของข้าว
Using mixture powder formulation of antagonistic bacteria Bacillus subtilis and some chemicals to control rice seed discoloration disease
Corporate authors (Thai): Rice Department, Bangkok (Thailand). Bureau of Rice Research and Development
Citation: [Proceedings of rice and temperate cereal crops annual conference 2008 volume 2/2], Bangkok (Thailand), p. 324-335
Format Extent: 228 p.
Issue Date: 2008
Language: Th
Keywords: Rice seed discoloration disease
Mixture powder formulation
Antagonistic bacteria
Bacillus subtilis
Chemicals
Disease control
Subject Classification(ASC): H20
AGROVOC: Oryza sativa
Plant diseases
Seeds
Discoloration
Bacterial pesticides
Bacillus subtilis
Chemical control
Biological control
Abstract: Experiments were laid out as Randomized Complete Block Design with 4 replications and 8 treatments. Khao Jow Hawm Khlong Luang 1, which is the most susceptible variety, was direct germinated-seed sown in 32 plots (a plot size 4*4 meter). Three applications with 1.6*10**(9) cfu/ml. of antagonistic bacterial suspention were made at booting, early heading and late heading stage and two applications with 1.6*10**(8) cfu/ml. of antagonistic bacterial suspention mixed with carbendazim+epoxiconazole 25 percent SC (11.25 gm.ai/rai) or propiconazol 25 percent E.C (7.5 gm.ai/rai ) or propiconazol+difenoconazole 30 percent E.C (6.75 gm.ai/rai ), an individual using of carbendazim+epoxiconazole 25 percent SC (22.5 gm.ai/rai) or propiconazol 25 percent E.C (15 gm.ai/rai) or propiconazol+difenoconazole 30 percent E.C (13.5 gm.ai/rai) were made at booting and early heading stage. One week before harvest, 100 panicles were randomly collected from each plot for disease severity examination and yield component of all plot were collected and analyzed The results indicated that the bacterium suspension (B.subtilis No.33, 1.6*10**(8) cfu/ml) mixec with carbendazim+epoxiconazole 25 percent SC (11.25 gm. ai/rai ) or propiconazol 25 percent E.C (7.5 gm.ai/rai) or propiconazol+difenoconazole 30 percent E.C (6.75 gm.ai/rai) fungicides showed the most effective in suppressing the rice grain discoloration disease development as well as an individual using of carbendazim+epoxiconazole 25 percent SC (22.5 gm.ai/rai), propiconazol 25 percent E.C (15 gm.ai/rai) and propiconazol+difenoconazole 30 percent E.C (13.5 gm.ai/rai) fungicides. We also found that using with 1.6*10**(9) cfu/ml. of antagonistic bacterial (B. subtilis No.33) also showed significant difference in suppressing the disease development compared to control plot.
Format Extent: 228 หน้า
Availability : Rice Department, 50 Phahon Yothin Road, Chatuchak, Bangkok 10900, Thailand
Availability: กรมการข้าว
Appears in Collections:Rice Department

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