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Please use this identifier to cite or link to this item: http://anchan.lib.ku.ac.th/agnet/handle/001/4680

ARN: TH201200004600
Authors: Sutruedee Prathuangwong
Supot Kasem
Sunanthanat Nurapak
Waraporn Popakdeepan
Nalina Hemsanit
สุดฤดี ประเทืองวงศ์
สุพจน์ กาเซ็ม
สุนันทนาถ นุราภักดิ์
วราภรณ์ ภู่ภักดีพันธ์
นลินา เหมสนิท
Authors' affiliation: Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology
Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology
Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology
Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology
Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology
Authors' affiliation (Thai): มหาวิทยาลัยเกษตรศาสตร์ คณะเกษตร ภาควิชาโรคพืช
มหาวิทยาลัยเกษตรศาสตร์ คณะเกษตร ภาควิชาโรคพืช
มหาวิทยาลัยเกษตรศาสตร์ คณะเกษตร ภาควิชาโรคพืช
มหาวิทยาลัยเกษตรศาสตร์ คณะเกษตร ภาควิชาโรคพืช
มหาวิทยาลัยเกษตรศาสตร์ คณะเกษตร ภาควิชาโรคพืช
Title: กระบวนการปฏิบัติเพื่อพัฒนาการจัดการโรคข้าวโพดโดยชีววิธี
Development produced of biological control for disease management of corn
Corporate authors (Thai): Kasetsart University, Bangkok (Thailand)
Citation: Proceedings of the 4th Workshop of Corn and Sorghum Research Project of Kasetsart University: Corn and sorghum yield increasing to improve the quality of life and environmental sustainability, Bangkok (Thailand), p. 243-259
Issue Date: 2010
Language: tha
Keywords: Corn
Plant diseases
Antagonist
Dose response
Application pattern
Induced systemic resistance
Subject Classification(ASC): H20
AGROVOC: Zea mays
Plant diseases
Management
Bacterial pesticides
Antagonism
Indigenous organisms
Application methods
Plant response
Biological control
Yields
Zea mays
โรคพืช
การจัดการ
สารป้องกันกำจัดศัตรูพืชจากแบคทีเรีย
ภาวะปฏิปักษ์
สิ่งมีชีวิตเฉพาะถิ่น
วิธีการใช้
การตอบสนองของพืช
การควบคุมโดยชีววิธี
ผลผลิต
Abstract: Antagonist was applied as either seed or foliar treatments and the efficacy of disease suppression was determined by disease incidence and systemic resistance induction. Under greenhouse, the threshold concentration of each antagonist required for significant (P=0.05) suppression of BLS was 1*10**(6) and 1*10**(8) cfu/ml for seed and foliar spray applications respectively. Combined seed and foliar treatments with antagonist provided higher induction of plant resistance than application either seed or foliar alone, as account by correlated accumulation of defense-related enzyme activity, beta-1,3-glucanase. Field experiment that revealed 54.7 percent severe epidemic of BLS resulted in 62.2 percent disease control respectively according to the experimental model investigated. The procedure threshold of antagonist application obtained in this study including seed bacterization, 3-foliar spray intervals, adjusted to the production cycle of plant when reached 14, 21, and 28 days after planting significantly (P=0.05) provided highest disease suppression (62.2 percent disease control) and increased beta-1, 3-glucanase activity compared to seed bacterization with 2-foliar applications. Increasing frequency of antagonist spray to level higher than 3 times did not result in a significant improvement of disease suppression. The native biocontrol agent alternative used as either seed or foliar spray showed that strain PCL21 gave the best plant growth promotion of corn seedlings and seed germination where P38 demonstrated the higher disease suppression. Combined native strains of PCL21 seed bacterization followed by P38 foliar spray therefore, resulted in highest disease suppression, induction of resistance and yield which their control efficacy was equivalent (P=0.05) to a standard strain SP007s (ISR-P) and recommended chemical control.
Availability : National Corn and Sorghum Research Center, Nakhon Ratchasima (Thailand)
Availability: ศูนย์วิจัยข้าวโพดและข้าวฟ่างแห่งชาติ
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