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“STUDIES ON Sarocladium oryzae (Sawada) Games and Hawksworth : THE INCITANT OF SHEATH ROT DISEASE OF RICE”

KrishiKosh

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Title “STUDIES ON Sarocladium oryzae (Sawada) Games and Hawksworth : THE INCITANT OF SHEATH ROT DISEASE OF RICE”
M.Sc. (PLANT PATHOLOGY)
 
Creator Diwakar, Chaliganjewar Sadanand
 
Contributor Lakpale, N.
 
Subject Sarocladium oryzae (Sawada) Games, Hawksworth, INCITANT, SHEATH ROT DISEASE, RICE
 
Description The present investigation entitled “Studies on Sarocladium oryzae (Sawada) Games and Hawksworth : The incitant of Sheath rot disease of rice” was carried out in the Department of Plant Pathology, College of Agriculture, IGKV, Raipur (C.G.) and found that
Ten micronutrients tested under in vitro and in vivo conditions against S. oryzae and result showed that Ferrous sulphate, Zinc sulphate and Boric acid were found effective in reducing mycelial growth and disease severity and increasing healthy spikelets, grains and test weight of grains.
Out of twelve fungicides tested against S. oryzae Carbendazim (Bavistin) and Chlorothalonil (Kavach) was found best in reducing mycelial growth and disease intensity and increasing healthy spikelets, grains and test weight of the grains.
Extract of eleven medicinal plants leaf were tested against S. oryzae in vitro and in vivo condition at 5 % concentration. Pathar cheta (Kalanchoe pinnata) was found best in reducing mycelial growth, and disease intensity, increasing healthy spikelets, grains and test weight of the grains.
Among the popular and promising varieties, natural incidence of sheath rot ranges from 0.10-3.72 % and Kranti (susceptible) variety showed highest incidence (4.31 %).
The disease intensity was lower and higher percentage of healthy spikelets and grains were recorded with treatments of Bacillus subtilis and Salicylic acid at 100 ppm among all other treatments for resistance induction tested.
Maximum amount of wax was recorded in IET 20295. This result clearly indicates that presence of more amount of wax on surface of the sheath considered one of the attributing factors of morphological defence against infection of Sarocladium oryzae.
 
Date 2016-09-22T10:35:14Z
2016-09-22T10:35:14Z
2009
 
Type Thesis
 
Identifier 90p.
http://krishikosh.egranth.ac.in/handle/1/78283
 
Language en
 
Format application/pdf
 
Publisher INDIRA GANDHI KRISHI VISHWAVIDYALYA, RAIPUR