5 作物の育苗過程における植物由来放線菌の生育調節効果

概要

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The spore suspension of actinomycetes isolated from plants was examined for plant growth-regulating activities in several crop seedlings. Testing crop seeds were soaked in the spore suspension of about 10^7 per ml for 30 min. These soaking seeds were sowed in growing pot containing fertilizers and after germination seedlings were grown during two to three weeks. As results, the promotive or inhibitory effects were found in seedlings treated with the spore suspension of actinomycetes. In case of tomato seedlings, strains S-228,S-231,S-238 and S-346 stimulated remarkably the growth rate (plant length), and on the contrary, strain S-40 inhibited it. On the bases of the results obtained here, we would like to discuss about the production of plant growth-regulating substances by plant-associated actinomycetes.
植物化学調節学会の論文
2002-10-31