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Friday, 23 October 2015

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Parasitic Fungi of Faizabad, Alternaria

Thirty four species of Alternaria have been recorded on different plants at Faizabad. Several plants were parasited by the same species, on the other hand more than one species have been observed on the same host. Amongst total species, Alternaria tenuis was harboured by 46 plants, A. tenuissima, A. brassicae, A. cucumerina and A. solani had their lesser number whereas 23 species were restricted to only one host separately. (Full paper at Slideshare.net)


Cite this as- Singh C.S., Kanaujia R.S. and Chaudhary R.L(1975):Parasitic Fungi of Faizabad, Alternaria. The Botanique. VI(4):191-194. 



Sunday, 18 October 2015

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Annonated list of Fungi of Faizabad. V.

Twenty five fungal species were isolated from 27 different hosts including two new fungi, Botryodiplodia pandani (Lev.) Petrak and Syd. and Cytospora thithymalina Pass. and Belter, earlier unknown from India. There are 25 new host records for the country. The specimen have deposited in the CMI, England. (Full paper at slideshare.net

Cited this as- Kanaujia R.S. and Kishore R. (1981): Annonated list of Fungi of Faizabad. V. Indian Journal of  Mycology and Plant Pathology. 11(2): 292-293.
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Annonated list of fungi from Faizabad (U.P.), India. I

Thirty fungi were isolated from different substrates/host. Of 75 different substrates, 18 were new host records and 47 were found to be new substrate fungal association earlier not reported from India. Out of 30 fungi,03 fungi, viz., Alternaria cheiranthi, Duportella tristicula and Phomopsis cassiae were found to be new to India. The specimens have been deposited at Commonwealth Mycological Institute, Kew, England and a part of collection has been deposited in the Herbarium of Department of Botany, K.S.S. P.G. College, Faizabad. (PDF at Slideshare.net)

Cite this as- Kanaujia R.S. and R. Kishore (1978): Annonated list of fungi from Faizabad (U.P.), India. I. Journal of Mycology and Plant Pathology. 8(2): 188-194.
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Addition to the Fungi of India, Part 8- Occurrence of Diplodia euphorbiae Braunaud in Faizabad

Diplodia euphorbiae Braunaud has been reported on the dead stems of Euphorbia teraculii for the first time in India from Faizabad. The specimen has been deposited in the Herbarium of the Commonwealth Mycologiacal Institute, England, as Herb.No. IMI 210642. A part of the collection has also been maintained in the Mycological Herbarium, Botany Department, K.S.S. P.G. College, Faizabad, as Herb. No. RSK-326-S.

Cite this as- Addition to the Fungi of India, Part 8- Occurrence of Diplodia euphorbiae Braunaud in Faizabad. FERTILIZER TECHNOLOGY. 15(1):61. 
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Addition to the Fungi of India Part 7- Occurrence of Haplosporella beaumontiana and Haplosporella ipomoeae in Faizabad

Two species of Haplosporella, viz., Haplosporella beaumontiana Ahmed and Haplosporella ipomoeae Ahmed, found to occur on the dead stem of Pithecolobium dulce Benth. and Ipomoea fistulosa L. respectively are reported for the first time in India. The specimen have been deposited in the Herb. Commonwealth Mycological Institute, England as Herb. no. IMI 209354 and IMI 209350 respectively. A part of collection has also been deposited in the Mycological Herbarium, Botany Department, K.S.S. P.G. College, Faizabad as Herb. no. RSK-195-S and RSK-191-S respectively. (PDF at Slideshare.net)

Cited this as- Kanaujia R.S. (1978):Addition to the Fungi of India Part 7- Occurrence of Haplosporella beaumontiana and Haplosporella ipomoeae in Faizabad. FERTILIZER TECHNOLOGY. 15(1):60.  
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Studies on phyllosphere fungi. I. Effect of foliar application of plant extracts

The effect of different concentrations of leaf extracts of Calotropis procera and Datura metal on phyllosphere mycoflora of Pennisetum typhoides has been investigated. The preparation of 4,8 and 16% leaf extracts of aforesaid plants and their spraying on the foliage of P. typhoides was performed as described by Mishra and Kanaujia (1972). The spore germination of certain phyllosphere fungi, viz., Aspergillus flavipes Bainier & Sortory, A. fumigatus Fres., Cladosporim herbarum (Pers.) Link., Curvularia lunata (Walker) Boedijn, Fusarium  sp., Mucor hiemalis Wehmer, Myrothecium roridum Tode, Penicillium sp. and Trichoderma viride Corda was tested separately in the different concentrations (4, 8, 16, 20 and 50%)of the same plant extracts in the cavity slides by hanging drop method. The extract above 4% concentration in both cases proved inhibitory for certain phyllosphere fungi. The inhibitory property of leaf extracts, however, differed with regard to certain fungal species. The leaf extract of D. metal proved to be more effective than that of C. procera. The spore germination of certain fungal species was considerably lowered in the extract of the both plant species.(PDF at Slideshare.net)

Cite this as- Kanaujia R.S. and Mishra R.R. (1978): Studies on phyllosphere fungi. I. Effect of foliar application of plant extracts. Bangladesh Journal of Botany. 7(2):13-19. 

Saturday, 17 October 2015

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Distribution of Fungi, Bacteria and Actinomycetes in relation to cropping pattern

Eight soil samples from closely situated cultivated field with varying cropping patterns have been assayed for fungi, bacteria and actinomycetes. The microbial population in different plots differed to a considerable extent. Plot with thick coverage and short term cropping pattern gave high fungal counts. The availability of substrates for microbial growth seems to be an important factor in governing the soil microbial population. A marginal difference in moisture content and pH plays a negligible role in the determination of soil microflora. (PDF at Slideshare.net)

Cite this as- Kanaujia R.S. and Singh C.S. (1978): Distribution of Fungi, Bacteria and Actinomycetes in relation to cropping pattern. Environment India. I(II): 25-29.
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Succession of fungi on drying floral buds of Papaver rheos

A successional pattern of fungi associated with decomposing unbloomed floral buds of Papaver rheos has been studied. Mucor heimalis which appeared first was followed by aspergilli and Penicillium nigricans. Chaetomium herbarum appearing late persisted till the last day of observation. (PDF at Slideshare.net)

Cite this as- Kanaujia R.S. and C.S. Singh (1975):Succession of fungi on drying floral buds of Papaver rheos. TECHNOLOGY. 12(2): 167-168.
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A new fungal disease of Desmodium gangeticum in India

The leaves of Desmodium gangeticum DC. were found infected by Parodiella hedysari (Schw.) Hughes. The plants were collected from Mani Parvat area of Ayodhya (Faizabad). The specimen has been deposited in the Herbarium, Commonwealth Mycological Institute, England (IMI 210656). and in the Mycological herbarium, Botany Department, K>S.S. P.G. College, Faizabad as RSK-340.(PDF at Slideshare.net)

Cite this as- Kanaujia, R.S. (1978): A new fungal disease of Desmodium gangeticum in India. Indian Journal of Mycology and Plant Pathology. 8(2): 197.
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A new host record of Periconia byssoides Pers. Ex Merat from India

During a systematic survey of parasitic fungi at Faizabad, a new leaf and stem spots of Cucurbita maxima Duscn. caused by Periconia byssoides Pers. ex Merat was observed. The infection starts in August to September. The fungus has been recorded on various living leaves and different living and nonliving substrates. So far, this fungus has not been recorded on Cucurbita maxima and hence C. maxima is being described as a new host record of Periconia byssoides Pers. ex Merat for India.The fungus has been deposited in the CMI, Kew, England, as IMI 210043 and in the herbarium of Botany Department, K.S.S. P.G. College, Faizabad as RSK-278. (PDF at Slideshare.net)

Cite this as- Kanaujia R.S. and R. Kishore (1977): A new host record of Periconia byssoides Pers. Ex Merat  from India. Fertilizer Technology. 14(3): 287.  
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A new leaf blight disease of Tephrosia purpurea in India

Tephrosia purpurea (L.) Pera. leaves were found severely infected by Alternaria tenuissima (Kunze ex Pers.) Wiltshire. The specimen has been deposited in the herbarium Commonwealth Mycological Institute, England (IMI 209278) and the Mycological herbarium, Botany Department, K.S.S.P.G. College, Faizabad (RSK-119). (PDF at Slideshare.net)


Cited this as- Kanaujia, R.S. and R. Kishore: A new leaf blight disease of Tephrosia purpurea in India. Journal of Mycology and Plant Pathology. 9(1): 100.
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Three new fungal disease from India

Leaf spot disease of Desmodium gyrans (Cercospora canescens)and Phragmites communis (Alternaria tenuissimaand a foot-rot disease of Coriandrum sativum (Torula herbarum f. quaternella) have been reported for the first time from India. The specimens have been deposited in the Herbarium, Commonwealth Mycological Institute, Kew, England and a part of collection has also been deposited in the Mycological Herbarium, Botany Department, K.S.S. P.G. College, Faizabad.(PDF at Slideshare.net)

Cited This as- Kanaujia R.S., Kishore R. and C.S. Singh (1978): Three new fungal disease from India. Acta Botanica Indica. 6: 92-93.
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A new blight disease of Fumeria parviflora in India

The leaves of Fumeria parviflora Lamk. were found infected by Alternaria tenuissima (Kunze ex Pers.) Wiltshire. These leaves were collected from Ram Kote, Ayodhya of Faizabad district. The fungus has been deposited in the Herbarium C.M.I., England, as IMI 210038 and K.S.S. P.G. College, Faizabad as RSK-273. (PDF at slideshare.net)

Cited this as- Kanaujia R.S. (1978): A new blight disease of Fumeria parviflora in India. Indian Journal of Mycology and Plant Pathology. 8(2): 210.

Monday, 17 August 2015

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Somaclonal Variation: A new dimension for sugarcane improvement

Plant tissue culture or micropropagation technique is the rapid method to multiply newly released cultivar in limited time. Crop improvement by conventional method in vegetatively propagated crops like sugarcane is very difficult due to its narrow genetic base and other limitations. Somaclonal variations are easily achieved in asexually propagated crops like sugarcane and banana. Tissue culture derived variations are known as somaclonal variation. These variations play an important role in crop improvement program. Genetic variations are heritable in next generation and important for crop improvement, epigenetic changes are temporary ultimately reversible. Mutation breeding is also very advantageous for improving a cultivar. Somaclonal variants of sugarcane are available for several traits like drought, salt tolerance, red rot, eye spot disease, quality and quantity trait. Molecular marker techniques like RFLP, RAPD, AFLP and SSR etc. are regularly used preferentially over traditional phenotypic or cytological methods. (PDF version at GERF Bulletin of Biosciences)  


Cited this as: Rastogi J., Siddhant, Bubber P. and Sharma BL. (2015): Somaclonal Variation: A new dimension for sugarcane improvement. GERF Bulletin of Biosciences. 6(1): 5-10.  

Wednesday, 22 July 2015

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बासी गन्ने मे शर्करा क्षरण को कम करने मे उपयोगी रसायनों पर अध्ययन

गन्ने से अधिक से अधिक मात्रा मे चीनी प्राप्त करने के लिए गन्ना वैज्ञानिकों द्वारा अनवरत प्रयास किये जा रहे हैं। कटाई के उपरान्त, कटाई तथा पेराइ के मध्य के अन्तराल (स्टेलिंग) के कारण गन्ने की गुणवत्ता मे कमी आती है जो शर्करा के इंवर्जन के फलस्वरूप होती है। अतः स्टेलिंग के कारण चीनी परता मे होने वाली हानि से बचने के लिए गन्ने की जल्दी से जल्दी पेराई कर लेनी चाहिए। इस प्रकार की हानि से चीनी उद्योग पर विपरीत प्रभाव पड़ता है। यदि स्टेलिंग से 0.1 यूनिट चीनी कम बनती है तो (रु० 2000/- प्रति कुंतल चीनी की दर से) प्रतिदिन 50,000 रुपये का घाटा होता है। इस हानि को कम करने की दिशा मे, कुछ रसायनों जैसे- मरक्यूरिक क्लोराइड, सैलिसिलिक एसिड, जिंक सल्फेट, अमोनियम बाइफ्लोराइड तथा सोडियम एजाइड के एक प्रतिशत घोल का छिड़काव 5 गन्ना प्रजातियों (को०शा० 8432, को०शा० 8436, को०से० 92423, को० शा० 95255 तथा को० शा० 96268) पर किया गया। परिणाम बताते हैं कि उपरोक्त सभी रसायन चीनी परता मे हानि को कम करने मे प्रभावी सिद्ध हुए हैं। यद्यपि आपस मे उनके स्तर मे विभिन्नता रही।

Cite this as: आर० पी० श्रीवास्तव, सिद्धान्त एवं एम०एल० शर्मा (2009): बासी गन्ने मे शर्करा क्षरण को कम करने मे उपयोगी रसायनों पर अध्ययन। राष्ट्रभाषा हिन्दी मे ग्यारहवीं कृषि विज्ञान संगोष्ठी " सतरंगी क्रांति हेतु कृषि एवं पशुपालन की समेकित प्रणाली: अनुसंधान, उपलब्धियां एवं रणनीति"। 13-15 अप्रैल, 2009 पेज 75 (सारांश)