During systematic survey of parasitic fungi at Faizabad (U.P.), author came across a new leaf spot disease of harsingar (Nyctanthes arbor-tristis L.) caused by Mycothecium verrucaria (Alb. & Schw.)Ditam. ex Fr. The small spherical yellowish leaf spots become visible in the month of September. With time the spots increase in size and finally become greyish followed by light brown and the death of the leaf tissues. The pathogen was isolated on PDA medium by usual method. Healthy leaves when inoculated artificially by spore suspension, developed spots characteristics in nature after 15 days. Reisolations...
Wednesday, 31 October 2018
Saturday, 20 October 2018
Notes on new fungal disease of Solanum tuberosum
In February, 1979, The author noticed stems of Solanum tuberosum L. infected by a fungus causing severe necrosis in his kitchen garden. On examination, the causal organism of the disease was identified as Mucor heimalis Wehmer. Earlier S. tuberosum has not been found to get infected by Mucor heimalis in India and this is new report. The disease appeared as small moist area on the stem just above the soil. The lesion enlarged radially and showed fluffy growth of fungus within a week followed by stem necrosis and ultimate death of plants desiccation....
Thursday, 4 October 2018
Effect of extraneous matter on juice extraction and Pol% cane
The present study was carried out in the month of March, April and May consisting three elite sugarcane varieties, viz., CoS 8436, CoS 8432 and CoSe 92423 to evaluate the effect of extraneous matter (trash) on extraction % of juice and Pol% cane. The result revealed that the extraneous matter affected extraction % and Pol% cane adversely, at a significant level both at the varietal level as well as at staling hours. Both the aforesaid parameters decrease with the increasing months along with the data calculated over the varieties, therefore, it was concluded...
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