Paracer S, Tarjan A C, Hodgson L M
J Nematol. 1987 Apr;19(2):194-200.
Algal extracts were ineffective against Meloidogyne spp., Panagrellus redivivus, and Neoaplectana carpocapsae at 1.0% aqueous concentrations, with the exception of Spatoglossum schroederi. S. schroederi killed Meloidogyne incognita, M. javanica, M. acrita, and Hoplolaimus galeatus at concentrations of 1.0, 0.75, and 0.50%. Extracts from S. schroederi at a concentration of 1.0% were ineffective against Hirschmanniella caudacrena and Belonolaimus longicaudatus. Spatoglossum schroederi, Botryocladia occidentalis, and Bryothamnion triquestrum when used as soil amendments at 0.5-1.0% concentrations (by weight) produced significant reduction of root gall development in tomato plants infected with M. incognita. Tomato plant growth was significantly improved by these algae, as well as by Caulerpa prolifera. Soil amendments of S. schroederi at concentrations of 0.5 and 1.0% significantly reduced root galling of tomato infected with M. incognita, M. arenaria, and M. javanica. Tomatoes grown in algal-soil mixture produced significantly heavier shoots and roots than plants raised in autoclaved soil. No significant differences in root-knot indices, nor in fresh and dry weights of tomato, were noted between the two concentrations of algal-soil mixture.
在1.0%的水浓度下，除了施罗德氏藻外，藻类提取物对根结线虫属、复生滑刃线虫和小卷蛾斯氏线虫均无效。施罗德氏藻在浓度为1.0%、0.75%和0.50%时可杀死南方根结线虫、爪哇根结线虫、锐利根结线虫和强壮螺旋线虫。浓度为1.0%的施罗德氏藻提取物对尾尖潜线虫和长针线虫无效。当施罗德氏藻、西方葡萄藻和三叉多管藻以0.5 - 1.0%（重量）的浓度作为土壤改良剂使用时，可显著减少感染南方根结线虫的番茄植株的根瘤发育。这些藻类以及粗枝软骨藻显著促进了番茄植株的生长。浓度为0.5%和1.0%的施罗德氏藻土壤改良剂可显著减少感染南方根结线虫、花生根结线虫和爪哇根结线虫的番茄的根瘤形成。在藻类 - 土壤混合物中种植的番茄的地上部分和根系比在高压灭菌土壤中种植的植株显著更重。两种浓度的藻类 - 土壤混合物在根结指数以及番茄的鲜重和干重方面均未观察到显著差异。
