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Use of chitin for controlling plant-parasitic nematodes - III. Influence of temperature on nematicidal effect, mineralization and microbial population buildup
Year:
1988
Source of publication :
Plant and Soil
Authors :
Cohn, Eli
;
.
Galper, Sergio
;
.
Sharon, Edna
;
.
Spiegel, Yitzhak
;
.
Volume :
109
Co-Authors:
Spiegel, Y., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Chet, I., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel
Cohn, E., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Galper, S., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Sharon, E., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Facilitators :
From page:
251
To page:
256
(
Total pages:
6
)
Abstract:
Cabbage plants were grown in soil amended with Clandosan (CLA) prepared from crustacean chitin (0.3% w/w). The plants were maintained in constant temperature tanks set to 15° or 30°C, in soils naturally infested with cyst nematode Heterodera schachtii, or inoculated with the root-knot nematode, Meloidogyne javanica, respectively. At 30°C, after the first month following inoculation, CLA caused an increase in top fresh weight of plants but no reduction in nematode-induced root galling was recorded. However, when fresh plants were planted, CLA induced a large reduction in gall formation and caused an increase in top fresh weight of nematode-inoculated plants. At 15°C, CLA significantly affected the plants only after 60 days: an increase in top fresh weight and a reduction in the number of eggs per cyst were recorded. Ammonium was not detected in soil after 30 days, at 30°C, whereas at 15°C, CLA-treated soil contained twice as much ammonium as non-treated soil. After 60 days, ammonium was not detected at all. After 30 days nitrate concentrations in soil attained higher values at 30°C than at 15°C, whereas after 60 days high levels were detected only at 15°C. At 30°C, CLA induced an increase in the number of fungi, chitinolytic bacteria, and total amount of bacteria; at 15°C, such an increase was detected only with the chitinolytic microorganisms. © 1988 Kluwer Academic Publishers.
Note:
Related Files :
actinomyctes
ammonium
Cabbage
Heterodera schachtii
Meloidogyne javanica
Nematoda
nitrate
plant protection
Show More
Related Content
More details
DOI :
10.1007/BF02202091
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18962
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
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Scientific Publication
Use of chitin for controlling plant-parasitic nematodes - III. Influence of temperature on nematicidal effect, mineralization and microbial population buildup
109
Spiegel, Y., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Chet, I., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel
Cohn, E., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Galper, S., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Sharon, E., Department of Nematology, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, Israel
Use of chitin for controlling plant-parasitic nematodes - III. Influence of temperature on nematicidal effect, mineralization and microbial population buildup
Cabbage plants were grown in soil amended with Clandosan (CLA) prepared from crustacean chitin (0.3% w/w). The plants were maintained in constant temperature tanks set to 15° or 30°C, in soils naturally infested with cyst nematode Heterodera schachtii, or inoculated with the root-knot nematode, Meloidogyne javanica, respectively. At 30°C, after the first month following inoculation, CLA caused an increase in top fresh weight of plants but no reduction in nematode-induced root galling was recorded. However, when fresh plants were planted, CLA induced a large reduction in gall formation and caused an increase in top fresh weight of nematode-inoculated plants. At 15°C, CLA significantly affected the plants only after 60 days: an increase in top fresh weight and a reduction in the number of eggs per cyst were recorded. Ammonium was not detected in soil after 30 days, at 30°C, whereas at 15°C, CLA-treated soil contained twice as much ammonium as non-treated soil. After 60 days, ammonium was not detected at all. After 30 days nitrate concentrations in soil attained higher values at 30°C than at 15°C, whereas after 60 days high levels were detected only at 15°C. At 30°C, CLA induced an increase in the number of fungi, chitinolytic bacteria, and total amount of bacteria; at 15°C, such an increase was detected only with the chitinolytic microorganisms. © 1988 Kluwer Academic Publishers.
Scientific Publication
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