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Biocontrol of Postharvest Diseases of Solanaceous Vegitables (Record no. 26596)

MARC details
000 -LEADER
fixed length control field	02975nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field	OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20220827140815.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field	140128s9999 xx 000 0 und d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number	632.3
Item number	RAJ/BI
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name	Rajkumar T
245 ## - TITLE STATEMENT
Title	Biocontrol of Postharvest Diseases of Solanaceous Vegitables
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc.	Vellayani
Name of publisher, distributor, etc.	Department of Plant Pathology, College of Agriculture
Date of publication, distribution, etc.	2000
502 ## - DISSERTATION NOTE
Degree type	MSc
520 3# - SUMMARY, ETC.
Summary, etc.	The fungi commonly associated with the spoilage of solanceous vegetables viz., brinjal, chilli and tomato under storage conditions were isolated and identified.<br/> Based on the frequency of occurrence Phomopsis vexans was selected in brinjal, Colletotrichum capsici in chilli and Fusarium solani, Rhizoctonia solani and Geotrichum candidum in tomato. These fungi were used for the further study.<br/> The studies on epiphytic mycoflora of the fruits yielded maximum epiphytes for brinjal followed by tomato and chilli. These included several fungi, yeast and many other saprophytes.<br/> Yeasts like Cryptococcus sp. and Sporobolomyces roseus and fungi like Aspergillus niger, Pencillium wortmanni and Fusarium solani were common to all the three vegetables. All the epiphytes were subjected to in vitro studies and tested against each pathogen. Gliocladium virens and Trichoderma harzianum were found to be effective from the in vitro test<br/> The mechanism of G. virens and T. harzianum was studied in detail and was found to be through coiling and penetration, coiling and granulation, coiling and vacuolation, disiegration of mycelia and formation of infection pegs. <br/> The role of T. harzianum and G. virens as biocontrol agents was studied in vivo. It was found that T. harzianum was effective in reducing the rots for brinjal in all the pathogens under study. G. virens however was found to infect the tomato fruits.<br/> T. harzianum was formulated in talc, coir pith, charcoal and wheat flour. Among these, maximum viability was recorded in talc. The number of spores increased initially only in the case of flour while for the rest it registered a steep decline and a stagnation after fifth week.<br/> T. harzianum was thus formulated in talc at 25 per cent concentration.<br/> The viable spore count at the end of the seventh week was of the order of 106 c.f.u./g of the formulation.<br/>The formulated antagonist was applied on the fruit by dipping as well as dusting. For the chilli anthracnose (C. capsici) neither of the methods were effective. In the case of brinjal rot (P.vexans) dusting was as effective as dipping in controlling the rot, for tomato dusting was slightly better than dipping in controlling sour rot (G. candidum). Both the methods were ineffective in controlling Fusarium rot (F. solani) of tomato while Rhizoctonia rot was controlled better by dusting than dipping in the formulation of the antagonist. <br/>
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	Susamma Phillip (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier	<a href="http://krishikosh.egranth.ac.in/handle/1/5810104125">http://krishikosh.egranth.ac.in/handle/1/5810104125</a>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme	Dewey Decimal Classification
Koha item type	Theses

Holdings
Withdrawn status	Lost status	Source of classification or shelving scheme	Damaged status	Not for loan	Home library	Current library	Shelving location	Date acquired	Total Checkouts	Full call number	Barcode	Date last seen	Price effective from	Koha item type
		Dewey Decimal Classification			KAU Central Library, Thrissur	KAU Central Library, Thrissur	Theses	18/03/2014		632.3 RAJ/BI	171653	18/03/2014	18/03/2014	Theses