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“STUDIES ON MANAGEMENT OF FRUIT ROT OF AONLA CAUSED BY Penicillium citrinum Thom.”
KrishiKosh
View Archive Info| Field | Value | |
| Title |
“STUDIES ON MANAGEMENT OF FRUIT ROT OF AONLA CAUSED BY Penicillium citrinum Thom.”
M.Sc. (PLANT PATHOLOGY) |
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| Creator |
Baghel, Ashwarya
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| Contributor |
Dantre, R.K.
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| Subject |
MANAGEMENT, FRUIT ROT, AONLA, Penicillium citrinum ThoM
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| Description |
The present investigation entitled “Studies on management of fruit rot of aonla caused by Penicillium citrinum Thom.” was carried out at the Department of Plant Pathology, I.G.A.U., Raipur (C.G.). Isolation of the pathogen was done from the rotted aonla fruits. Isolated culture was maintained and proved for its pathogenicity by pin-prick method and Koch‟s postulates. Typical symptoms developed very fast in this method and caused fruit decay. Physiological studies on the effect of temperature, relative humidity and pH on the fruit rot of aonla were carried out. Temperature of 100C was most effective for preservation of aonla fruits while, 20-25C was most favourable for the fungal growth. Fruits stored at low relative humidity and low temperature caused minimum loss. The pathogen was able to grow well at pH 5.0 and 6.0 and formed typical colony of the test fungus. The management of disease by post-harvest treatment involved both physical and chemical treatments. The fruits stored in hard plastic bag and poly bag were most suitable for the prevention of fruit rot disease. Among five oils, mustard, linseed and groundnut gave the best results as they reduced the decay of aonla fruits. Some medicinal oils such as neem oil and mahua oil were significantly effective in preventing the decay by fruit rot. Complete inhibition of the pathogen (P. citrinum) was obtained from fungicides viz., Propiconazole, Hexaconazole, Mancozeb and Kitazin in pre-inoculation treatment, post-inoculation treatment and under in-vitro evaluation. Salicylic acid, Sodium fluoride and Magnesium sulphate at 10-3 M concentration were effective in preventing post-harvest rot of aonla. Maximum inhibition of radial growth of P. citrinum was observed with T. viride isolate 2 and T. harzianum isolate 1. |
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| Date |
2016-09-21T12:31:56Z
2016-09-21T12:31:56Z 2006 |
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| Type |
Thesis
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| Identifier |
105p.
http://krishikosh.egranth.ac.in/handle/1/77989 |
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| Language |
en
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| Format |
application/pdf
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| Publisher |
INDIRA GANDHI KRISHI VISHWAVIDYALAYA, RAIPUR
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