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Publications
Publications (9)
A series of experiments were conducted to investigate phytoalexin production from five varieties of lettuce in hydroponics using abiotic (2.5, 5% CuSO4; 0.5, 1% AgNO3) and biotic elicitors (non-pathogenic Pythium sp.) at different plant ages. It showed that phytoalexin was successfully induced in tested lettuce grown in hydroponics after elicitatio...
Efficacy of non-pathogenic Fusarium oxysporum (F221-B) was assessed as a possible biocontrol agent against fungal pathogens, namely Curvularia lunata (C11, C12), F. semitectum (F113), F. oxysporum f.sp. lactucae (F221-R, F442-G), Rhizoctonia solani (R11, R12), Rhizoctonia sp. (R111, R112, R113) in vitro, while F221-B showed a moderate ability to in...
In the year 2006-2008, we designed the experiment for evaluating the indigenous rhizobacteria for control Pythium root rot in hydroponics. The bacteria were isolated from various kinds of hydroponics including deep flow technique (DFT), dynamics root floating technique (DRFT), nutrient film technique (NFT) and substrate culture. More than 700 strai...
Effect of soluble silicon and Trichoderma harzianum on the in vitro growth of Pythium aphanidermatum. Journal of Agricultural Technology 4(2): 57-71. With respect to the environmentally friendly sustainable agricultural practices, this research was therefore conducted to evaluate the interaction effect of soluble silicon (3 kinds with 3 concentrati...
In an attempt to reduce the hydroponic growing cost as well as to facilitate/ease the preparation and source of nutrient solution, soil fertilizer has been initially experimented as a substitute for soilless nutrient solution at the College of Agriculture, Osaka Prefecture University (OPU), Japan in 1999. Two x two factorials in CRD with 25 replica...
In this report, problems of pathogen contamination in nutrient solution, imbalance of the minerals, pH and EC control, and accumulation of phytotoxic substances in the solution and the countermeasures for these problems are reviewed. Also, the growing system and the technique of the nutrient solution management for the zero run-off are proposed.
Effects of inorganic elements on zoospore release, zoospore germination, mycelial growth and sporangium formation of Pythium aphanidermatum were investigated. The stage of zoospore release was highly influenced by many kinds of inorganic elements. The effective concentration as evaluated from 50% inhibition of zoospore release was 0.16, 0.19, 0.36,...
Two-hundred and seventy five isolates of rhizobacteria were isolated from lettuces grow in nutrient film technique (NFT) and dynamic root floating technique (DRFT) that obtained 186 isolates from NFT and 89 isolates from DRFT. All isolates were tested antagonistic activity against P. myriotyrum and P. aphanidermatum by dual culture technique. There...
