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Soil solarisation, amendments and bio-control agents for the control of Macrophomina phaseolina and Fusarium oxysporum f.sp. cumini in aridisols

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Title Soil solarisation, amendments and bio-control agents for the control of Macrophomina phaseolina and Fusarium oxysporum f.sp. cumini in aridisols
Not Available
 
Creator Sunil Israel
Ritu Mawar
Satish Lodha
 
Subject Cuminum cyminum, Cyamopsis tetragonoloba, Bacillus fi rmus, Trichoderma harzianum, Mustard residues, Euphorbia hirta, Aerva persica, Celosia argentea
 
Description Not Available
The effects of soil solarisation, residue incorporation, summer irrigation and biocontrol agents singly
or in combination on survival of Macrophomina phaseolina and Fusarium oxysporum f.sp. cumini
were ascertained in the 2000 and 2001 summer seasons. In amended plots, temperature increased by
2.5°C over non-amended plots (42–51°C) at various soil depths. Combining amendments and soil
solarisation elevated the soil temperatures by 0.5–5°C and 2.5–13.0°C compared to non-amended
solarised and non-solarised plots, respectively. These treatment combinations signifi cantly reduced M.
phaseolina and Fusarium propagules compared to control. Of these, combining mustard pod residues
with soil solarisation almost eliminated viable propagules of both the pathogens at 0–30 cm soil depth.
However, a combination of mustard pod residue and oil-cake (2.5 + 0.5 ton ha-1) with only one summer
irrigation also caused pronounced reduction in pathogenic propagules, which was equal to that recorded
in non-amended solarised plots. The effect of surviving propagules of M. phaseolina and Fusarium on
incidence of dry root rot on clusterbean and wilt on cumin was studied in subsequent rainy and winter
seasons, respectively. Signifi cant reductions in both diseases were recorded in residue and biocontrol
amended plots with or without polyethylene mulching compared to non-amended control. The lowest
plant mortality in both the crops was recorded in mustard residue amended solarised plots in a two year
fi eld experiment. However, the disease indices in the plots having a combination of mustard residues
and oil-cake amendment with one summer irrigation was equal to that achieved in the treatment having
polyethylene mulching. These results suggest that in hot arid regions use of Brassica residues can be
a practical and feasible substitute for polyethylene mulching in managing soil-borne diseases.
Not Available
 
Date 2019-07-26T05:19:10Z
2019-07-26T05:19:10Z
2005-01-01
 
Type Research Paper
 
Identifier 49
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/21717
 
Language English
 
Relation Not Available;
 
Publisher Not Available