PENGUJIAN ISOLAT AGENSIA HAYATI Pseudomonad fluoresen
TERHADAP PENEKANAN PERKEMBANGAN LAJU INFEKSI PENYAKIT LAYU Ralstonia solanacearum dan Fusarium sp. PADA TANAMAN CABAI (Capsicum annuum L.)
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Institusion
Universitas Pembangunan Nasional Veteran Jawa Timur
Author
IKA, NURFITRIANA
Subject
S Agriculture (General)
Datestamp
2013-08-01 08:09:19
Abstract :
Production of chilli plants have constraints that often arise at any time, are the plant disease. One of the important diseases of chilli plants caused by Ralstonia solanacearum and Fusarium sp. Pseudomonads fluorescent bacteria known as biological agents that can suppress plant disease development. Therefore, the isolates tested biological agents to determine Pseudomonads fluorescent isolates Pf most good in reducing the rate of progression of infection Ralstonia solanacearum wilt and Fusarium sp. in chilli. Pseudomonads fluorescent isolates used were isolates choice of previous studies, namely isolate Pf B, Pf 36, Pf 81, Pf 122, Pf 142 and 160 as well as a comparison to the control treatment (sterile distilled water). Chilli plant seeds that have been outstanding for 30 days cleared roots from the soil and then soaked in a suspension of each isolate Pseudomonads fluorescent and control for 30 minutes. After the seeds that have been soaked in chilli plants grown in media inoculated bacteria Ralstonia solanacearum and Fusarium sp. Results from observational data that shows all seven treatments Pseudomonads fluorescent isolates capable of suppressing the development of wilt disease complex compared to controls. Isolates Pf 122, Pf and Pf 160 isolates Pf B is most able to delay the appearance of symptoms and suppress the development of wilt disease complex in chilli longest compared to other treatments. For good plant growth plant height, leaf number and dry weight of chilli plants best treatment is the treatment of bacterial isolates of Pseudomonads fluorescent Pf 122, Pf and Pf 160 B. Biological agents derived from bacteria, especially Pseudomonads fluorescent isolates Pf 122 the best for land applied in chilli plants. Keywords: Pseudomonads fluorescent, chilli plants, Ralstonia solanacearum, Fusarium sp.
Production of chilli plants have constraints that often arise at any time, are the plant disease. One of the important diseases of chilli plants caused by Ralstonia solanacearum and Fusarium sp. Pseudomonads fluorescent bacteria known as biological agents that can suppress plant disease development. Therefore, the isolates tested biological agents to determine Pseudomonads fluorescent isolates Pf most good in reducing the rate of progression of infection Ralstonia solanacearum wilt and Fusarium sp. in chilli. Pseudomonads fluorescent isolates used were isolates choice of previous studies, namely isolate Pf B, Pf 36, Pf 81, Pf 122, Pf 142 and 160 as well as a comparison to the control treatment (sterile distilled water). Chilli plant seeds that have been outstanding for 30 days cleared roots from the soil and then soaked in a suspension of each isolate Pseudomonads fluorescent and control for 30 minutes. After the seeds that have been soaked in chilli plants grown in media inoculated bacteria Ralstonia solanacearum and Fusarium sp. Results from observational data that shows all seven treatments Pseudomonads fluorescent isolates capable of suppressing the development of wilt disease complex compared to controls. Isolates Pf 122, Pf and Pf 160 isolates Pf B is most able to delay the appearance of symptoms and suppress the development of wilt disease complex in chilli longest compared to other treatments. For good plant growth plant height, leaf number and dry weight of chilli plants best treatment is the treatment of bacterial isolates of Pseudomonads fluorescent Pf 122, Pf and Pf 160 B. Biological agents derived from bacteria, especially Pseudomonads fluorescent isolates Pf 122 the best for land applied in chilli plants. Keywords: Pseudomonads fluorescent, chilli plants, Ralstonia solanacearum, Fusarium sp.
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