Zinnia elegans Jacq., an ornamental plant of the family compositae has been found to be parasited by Rhizopus nigricans. The disease was recognized as flower rot. Earlier, R. nigricans has not been found on Zinnia elegans. It is, therefore, reported as a new fungus host association and a new disease record for India. Cited this as: Kanaujia R.S., Singh C.S. and C.K. Yadav (1993): An unrecorded flora rot of Zinnia in India. Proceeding of the Eightieth Session of The Indian Science Congress Part III. p. 227. (Abstract) ...
Sunday, 17 April 2016
Sunday, 10 April 2016
Effect of cereal, millet and legume bran supplement on yield and biological efficiency of oyster mushroom (Pleurotus flabellatus)
Oyster mushroom has been described both as parasite and saprophyte on several trees. In the wild, it is found on trunk or stumps of various trees and shrubs, mainly of deciduous nature. It belongs to family Pleurotaceae of order Agaricales. It is being popularized worldwide due to its nutritional properties which make it an ideal food for human consumption. Although, in India, it is admired due to its excellent flavor, taste and above all, easy and less expensive method of growing with a wide choice of species available for cultivation under different climatic...
STUDIES ON CERTAIN ECOLOGICAL ASPECTS OF SOIL FUNGI- IX
Mycoflora of cultivated dhusi (sandy loam) soil kept at 10, 20, 30, 40, 50, 60, 70 and 80 percent moisture levels has been studied. By increasing the moisture status of the soil up to 30 per cent, the fungal population of the soil increased and then decreased onwards till 80 per cent moisture where the lowest population both in quality and quantity was obtained every time. Except for 20 per cent set, population decreased gradually on succeeding sampling dates. The bacterial population, on the other hand, increased with increasing moisture status from 10-80...
Friday, 8 April 2016
STUDIES ON CERTAIN ECOLOGICAL ASPECTS OF SOIL FUNGI. VII
Mycoflora of soils, separately amended with urea, ammonium sulphate, superphosphate, organic manure and fresh leaves/twigs of Ipomoea fistulosa and regularly irrigated, has been investigated. Each amendments was applied at 60 kg/acre. 52 fungal species, comprising 7 spp. of Phycomycetes, 1 Ascomycetes, 38 spp. of Deuteromycetes and 7 sterile colonies, were isolated from the amended and control plots. Fungal population was higher in the amended soils as compared to control. Organic manure and irrigated plots, however, possessed more fungal populations. Among the fertilized plots, the ones amended by urea gave the highest yield, followed by...
Thursday, 7 April 2016
STUDIES ON CERTAIN ECOLOGICAL ASPECTS OF SOIL FUNGI. VI
Ten soil samples belonging to 7 soil type (up-lying cultivated field, low-lying cultivated field, garden, waterlogged area, usar, barren land and old mound) were collected from three districts, viz., Hardoi, Lucknow and Unnao of Uttar Pradesh (India). These have been assayed for their mycoflora. A total of 65 fungal species, comprising 10 Phycomycetes, 6 Ascomycetes, 43 Deuteromycetes and 6 mycelia sterilia were isolated. In most of the soil samples, Deuteromycetes were maximum in number followed by Phycomycetes, Ascomycetes and mycelia sterilia. Trichoderma viride and Aspergillus flavus were present in all the soil types....
Tuesday, 5 April 2016
STUDIES ON CERTAIN ECOLOGICAL ASPECTS OF SOIL FUNGI. III
Certain ecological aspects of soil fungi from three different localities. viz., forest, cultivated field and grassland, quite near to each other, have been studied. The forest was chiefly dominated by Sal (Shorea robusta). Triticum vulgare, Pisum sativum and Brassica campestris (in winter), Pennisetum typhoides, Sorghum vulgare, Zea mays and different Phaseolus spp. (in rainy season) were grown in cultivated field whereas in grassland Cynodon dactylon was the dominated species. sample were collected from 8 different depths, viz., 0-2, 2-7, 7-12, 12-17, 17-25, 25-35, 35-45 and 45-60 cms separately in sterilized soil containers. The sampling...
Sunday, 3 April 2016
STUDIES ON CERTAIN ECOLOGICAL ASPECTS OF SOIL FUNGI - II
The mycoflora of twenty-one soil samples, collected from eight districts, viz., Aligarh, Nainital, Hardoi, Unnao, Lucknow, Gorakhpur, Deoria and Jaunpaur has been described. Apparently similar localities situated widely apart and closely situated localities with diverse characteristics have been surveyed. The fungal population was generally higher in cultivated fields. The different cultivated fields, however, exhibited remarkable variation in their fungal population. Higher population was obtained in three low lying cultivated fields which were under crop cover for short duration in the year. Nature and duration of cropping affected the population. Longer the period the field...
Friday, 1 April 2016
Studies on certain ecological aspects of soil fungi
Eight localities of village Bhatauli of Unnao district, Uttar Pradesh (India) have been analysed for their soil mycoflora. 52 fungal forms belonging to 29 genera with two members of mycelia sterilia were isolated. Eight species (confined to 7 genera)of Phycomycetes, 3 spp. (2 genera including one Ascogenous species of Aspergillus) from Ascomycetes, 39 spp. belonging to 20 genera of Deuteromycetes and two mycelia sterilia (white and black one each)comprise the total population. Genus Aspergillus alone represents 13 species, viz., A. nidulans, A. fumigatus, A. sydowi, A. flavus, A. terreus, A. terreus var. Africanus,...
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