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Comparison of three methods (leaf, soil and stem) of inoculation for stem rot jute (Corchorus olitorius L. and C. capsularis L.) caused by Macrophomina phaseolina (Tassi) Goid.

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Title Comparison of three methods (leaf, soil and stem) of inoculation for stem rot jute (Corchorus olitorius L. and C. capsularis L.) caused by Macrophomina phaseolina (Tassi) Goid.
methods (leaf, soil and stem) of inoculation for stem rot jute (Corchorus olitorius L. and C. capsularis L.) caused by Macrophomina phaseolina (Tassi) Goid.
 
Creator RAJIB KUMAR DE
 
Subject Jute, Corchorus spp., Stem rot, Macrophomina phaseolina, Inoculation method
 
Description Not Available
In order to devise a suitable method of inoculation of jute (Corchorus olitorius L. and C. capsularis
L.) stem rot caused by Macrophomina phaseolina (Tassi) Goid. for large scale use, three
methods (leaf, soil and stem) were compared. Among four leaf inoculation methods, tip cut and
cotton swab method was better than inoculating floating leaf disc (8 mm), floating leaf and
cotton swabbed detached leaf with typical symptom with light to dark brown spots in 100 %
inoculated leaves within 48 hours on susceptible line JRC 412 which enlarged on further
incubation. Among three different times of soil inoculation, 7 days before sowing was more
effective in causing infection in JRO 524 and JRO 8432 with 26.6 and 23.3% stem rot than soil
inoculated during sowing (15%) and 7 days after sowing (10%). Resistant reaction of four lines
(OIN 125, OIN 154, OIN 651 and OIN 853) was confirmed by these three soil inoculation
methods with JRO 524 as check. Stem inoculation technique was highly efficient and caused
100% infection with typical stem rot symptoms with brown spots of different length and intensity
encircling the stem in JRO 524 compared to earlier methods. The variation in virulence pattern
of isolates was evident, as more virulent isolate (from Sorbhog, Assam) produced distinctly
clear, longer and darker brown stem rot lesion than less virulent ones (from Barrackpore, West
Bengal).
Not Available
 
Date 2021-09-01T10:30:10Z
2021-09-01T10:30:10Z
2016-06-01
 
Type Research Paper
 
Identifier J. Mycopathol. Res. 54(1) : 59-63, 2016; (ISSN 0971-3719)
ISSN 0971-3719
http://krishi.icar.gov.in/jspui/handle/123456789/61174
 
Language English
 
Relation Not Available;
 
Publisher Indian Mycological Society, Department of Botany, University of Calcutta, Kolkata 700 019, India