Development of Meloidogyne incognita Inhibited by Digtaria decumbens cv. Pangola.
نویسندگان
چکیده
Population densities of the root-knot nematode, Meloidogyne incognita, were lower after 90 days in soil planted to digitgrass (Digitaria decumbens cv. Pangola) than in soil left fallow or planted to tomato. Roots of tomato seedlings interplanted with Pangola digitgrass were less galled than were roots of tomato seedlings planted alone. Fewer second stage larvae invaded roots of Pangola digitgrass than tomato and those that entered the grass roots failed to develop beyond the late second stage.
منابع مشابه
Effects of Pangola,Digitgrass on Meloidogyne arenaria, M. javanica, and M. hapla.
Pangola digitgrass (Digitaria decumbens Stent.) can be used as a pasture grass or it can be harvested as hay. I t originated in Africa and has been in t roduced to other tropical and subtropical areas of the world. Winchester and Haysl ip (5) repor ted that the grass e l iminated populat ions of the root¬ nematode, Meloidogyne incognita acrita Chitwood and Oteifa, 1952. Overman (3) sampled 7...
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Agrobacterium tumefaciens stimulated and Fusarium oxysporum f. sp. lycopersici inhibited development and reproduction of Meloidogyne incognita when applied to the opposite split root of tomato, Lycopersicon esculentum cv. Tropic, plants. The lowest rate of nematode reproduction occurred after 2,000 juveniles were applied and the fungus was present in the opposite split root. The effects of all ...
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The role of Pasteuria penetrans in suppressing numbers of root-knot nematodes was investigated in a 7-year monocuhure of tobacco in a field naturally infested with a mixed population of Meloidogyne incognita race 1 and M. javanica. The suppressiveness of the soil was tested using four treatments: autoclaving (AC), microwaving (MW), air drying (DR), and untreated. The treated soil bioassays cons...
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In greenhouse studiesl infectivity and development of M. incoynila on tomato was impaired by increasing soil solution concentrations (ECe 1.5, 2.5, 3.5, 5.0 mmhos/cm) ol NaC1, CaCI, or combinations of both salts. In two experiments, reduced inlrctivily was pronounced on a susceptible cultivar (Hunts) a t all salt concentrations, while infectivity was reduced primarily a t higher salt concentrat...
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ورودعنوان ژورنال:
- Journal of nematology
دوره 15 1 شماره
صفحات -
تاریخ انتشار 1983