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Gurumurthy, S. B.

• Biological Control of Phytophthora Foot Rot (phytophthora Capsici) of Black Pepper (piper Nigrum l.) in Central-western Ghats

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Authors

M. S. Lokesh ¹, S. V. Patil ², S. B. Gurumurthy ², M. G. Palakshappa ³, M. Anandaraj ⁴

Affiliations
1 AICRP on Spices, Horticulture Research Station (U.H.S.) Sirsi, UTTARA Kannada Karnataka, IN
2 College of Horticulture (U.H.S.) Sirsi, UTTARA Kannada karnataka, IN
3 AICRP on Sesame and Niger, University of Agricutural Sciences, Dharwad karanataka, IN
4 Indian Institute of Spices Research, Calicut Kerela, IN

Source

International Journal of Plant Protection, Vol 6, No 1 (2013), Pagination: 139-141

Abstract

Phytophthora foot rot (Phytophthora capsici) of black pepper (Piper nigrum L.) is most devastating disease in Uttara Kannada district of Karnataka which is situated in Central Western Ghats. The antagonistic organisms viz., Trichoderma viride, T. harzianum, Laetiseria arvalis, and Bacillus subtilis were tested against P.capsici in pot culture by adding infected material to healthy vine. Among the four bioagents tried, Trichoderam viride and T. harzianum were effective in reducing the incidence of the disease as compared to Laetiseria arvalis, and Bacillus subtilis. The disease incidence was maximum in untreated vines.

Keywords

Black Pepper, Trichoderma Viride, T. Harzianum, Laetiseria Arvalis, Bacillus Subtilis, Foot Rot

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• Integration of Potassium Phosphonate and Bioagent against Phytophthora Foot Rot (phytophthora Capsici leonion) of Black Pepper (piper Nigrum L.) Management in Arecanut Cropping System

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Authors

M. S. Lokesh ¹, S. V. Patil ², S. B. Gurumurthy ², M. G. Palakshappa ³

Affiliations
1 AICRP on Spices, Horticulture Research Station, (U.H.S.) Sirsi, Uttara kannada karnataka, IN
2 College of Horticulture (U.H.S.) Sirsi, Uttara kannada karnataka, IN
3 AICRP on Sesame and Niger, University of Agricutural Sciences, Dharwad karnataka, IN

Source

International Journal of Plant Protection, Vol 6, No 1 (2013), Pagination: 182-184

Abstract

Phytophthora foot rot is a serious disease in black pepper in Uttara Kannada district of Karnataka. Application of systemic fungicide, potassium phosphonate @ 0.3 per cent alone as spraying (3 l/vine) and drenching (5 l/vine) or integration of systemic fungicide, potassium phosphonate @ 0.3 per cent as spraying and drenching with bioagent, Trichoderma viride @ 50 g/vine along with 5 kg of farm yard manure to the basin of the black pepper vines during June and August were effective in reduction of disease incidence of Phytophthora foot rot of black pepper.

Keywords

Phytophthora Foot Rot, Potassium Phosphonate, Trichoderma Spp

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• Efficacy of New Fungitoxicant Molecules in Management of Anthracnose (colletotrichum Gloeosporioides penz.) of Arecanut (areca Catechu l.)

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Authors

M. S. Lokesh ¹, V. Suryanarayana ², S. V. Patil ³, M. G. Palakshappa ⁴, S. B. Gurumurthy ⁵

Affiliations
1 AICRP on Spices, Horticulture Research Station, Sirsi, Uttara kannada Karnataka, IN
2 Department of Plant Pathology, College of Forestry, Sirsi ,Uttara kannada Karnataka, IN
3 Deparment of Agronomy, College of Horticulture, Sirsi, Uttara kannada Karnataka, IN
4 AICRP on Seasame and Niger,University of Agricultural Sciences, Dharwad Karnataka, IN
5 Department of Agricultural Microbiology, College of Horticulture, Sirsi, Uttara kannada Karnataka, IN

Source

International Journal of Plant Protection, Vol 6, No 1 (2013), Pagination: 217-218

Abstract

Dropping of immature arecanut due to anthracnose was reduced (15.55 %) by application of difenconazole @ 0.1 per cent twice during April and May, 2009. Hexaconazole @ 0.1% application twice was also effective in reduction (18.88 %) of anthracnose of arecanut during summer. This was followed by Carbendazim + Mancozeb (Saff ) @0.2 % application twice wherein there was reduction of disease 23.32 %. Carbendazim @ 0.1% spraying twice also minimized (26.66%) button dropping of arecanut. However, Copper oxychloride @ 0.3% twice (35.55 %) and Potassium phosphonate @ 0.3% (38.88 %) twice were less effective in control of the disease. Maximum disease incidence was recorded in untreated bunches (55.55 per cent).

Keywords

Anthracnose of Arecanut, Fungitoxicant, Colletotrichum Gloeosporioides

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• Efficacy of pseudomonas Fluorescens in Relation to Diseases Incidence of Soft Rot of Ginger in Uttara Kannada District of Karnataka

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Authors

M. S. Lokesh ¹, S. V. Patil ², S. B. Gurumurthy ³, M. G. Palakshappa ⁴, M. Anandaraj ⁵

Affiliations
1 AICRP on Spices, Horticulture Research Station (U.H.S.) Sirsi, Uttara kannada Karnataka, IN
2 College of Horticulture (U.H.S.) Sirsi, Uttara kannada Karnataka
3 College of Horticulture (U.H.S.) Sirsi, Uttara kannada Karnataka, IN
4 AICRP on Sesame and Niger, University of Agricutural Sciences, Dharwad Karnataka, IN
5 Indian Institute of Spices Research, Calicut Kerala

Source

International Journal of Plant Protection, Vol 6, No 1 (2013), Pagination: 221-222

Abstract

Ginger (Zingiber officinale Roscoe.) an important spice crop is seriously damaged during monsoon by soft rot causing organism, Pythium aphanidermatum (Edson.) Fliz. in Uttara Kannada district of Karnataka. Application of Pseudomonas fluorescens (@ 1 per cent at 108 cfu) as seed treatment and three sprays at 15 days interval from 30 days after planting showed reduced incidence of soft rot disease and improved the vigour and yield of the crop.

Keywords

Ginger Soft Rot, Pseudomonas Fluorescens, Trichoderma Harzianum, Bordeaux Mixture, Copper Oxychloride

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• Morphological, Cultural and Physiological Characterization of colletotrichum Gloeosporioides (penz.) Penz. and Sacc., the Cause of Anthracnose of Pomegranate (punica Granatum l.)

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Authors

A. Prashantha ¹, Arun R. Sataraddi ², S. V. Patil ³, M. S. Lokesh ⁴, S. B. Gurumurthy ¹, K. Chandan ¹

Affiliations
1 College of Horticulture, [U.H.S.(B)], Sirsi, Uttara Kannada Karnataka, IN
2 Department of Plant Pathology, College of Agriculture, [U.A.S.(D.)],Bijapur Karnataka, IN
3 AICRP on Spices, Horticulture Research Station [U.H.S.(B.)], Sirsi, Uttara Kannada Karnataka, IN
4 College of Horticulture, [U.H.S.(B)], Sirsi, Uttara Kannada Karnataka

Source

International Journal of Plant Protection, Vol 6, No 2 (2013), Pagination: 247-252

Abstract

The severity of pomegranate anthracnose was more in Bagalkot district (35.84%) followed by Koppal (27.22%), Bijapur (24.85%) and Raichur (18.14%) districts. The identity of the fungus was confirmed as Colletotrichum gloeosporioides (Penz.) Penz. and Sacc and deposited at NCFT, New Dehli. The isolates of C. gloeosporioides showed maximum growth on Potato dextrose agar and Richard's broth on 13 th day after incubation at 27±1oC. There was variability among eight isolates of C. gloeosporioides with respect to type of growth, mycelial colour, pigmentation, size of the spore and sporulation. The highest radial growth and sporulation of the fungus was recorded at 30 oC, with 100 per cent relativ

Keywords

Pomegranate, Anthracnose colletotrichumgloeosporioides

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• Effect of Chemicals Inducing Systemic Resistance and Efficacy of Bioagents and Botanicals against Pomegranate (punica Granatum l.) Anthracnose (colletotrichum Gloeosporioides (penz.) Penz. and Sacc.)

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Authors

A. Prashantha ¹, Arun R. Sataraddi ², S. V. Patil ¹, M. S. Lokesh ³, K. Chandan ⁴, S. B. Gurumurthy ⁴

Affiliations
1 College of Horticulture [U.H.S.(B)], Sirsi, Uttara khannada Karnataka, IN
2 College of Agriculture, University of Agricultural Sciences, Dharwad Karnataka, IN
3 AICRP on Spices Horticulture Research Station [U.H.S.(B.)], Sirsi, Uttara kannada Karnataka, IN
4 College of Horticulture [U.H.S.(B)], Sirsi, Uttara kannada Karnataka, IN

Source

International Journal of Plant Protection, Vol 6, No 2 (2013), Pagination: 289-292

Abstract

Pomegranate (Punica granatum L.) is a commercially an important fruit of both tropical and subtropical countries and belongs to the family Punicaceae. The fruits are susceptible to various biotic stress caused by fungi, bacteria and physiological disorders. Among the various fungal diseases, anthracnose (Colletotrichum gloeosporioides (Penz.) Penz. and Sacc.) is one of the most serious diseases of pomegranate worldwide. Like many of pathogenic fungi it also remains latent during maturity of the fruit and expresses symptoms during storage. Further, conidia of the C. gloeosporioides which are abundant in the atmosphere of tropical plantation may lodge on the surface of the fruits as the fruits approaching maturity. Propagules of the pathogen cause lesions and decay of the fruit. Among the chemicals inducing systemic resistance viz., salicylic acid and benzoic acid were found more effective in reducing the per cent disease index with high total soluble solid, low total titrable acidity and less physiological loss in weight after eight days of storage.

Keywords

Pomegranate, Anthracnose, Chemicals Inducing Systemic Resistance, Bioagents, Botanicals

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• Influence of FYM, Compost and Rock Phosphate with PSB on Soil Nutrient (NPK) Balance under Organic Cultivation of Chickpea (Cicer arietinum L.) Grown in Vertisol

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Authors

S. V. Patil ¹, S. I. Halikatti ², M. N. Thimmegowda ³, S. B. Gurumurthy ⁴, M. S. Lokesh ⁵

Affiliations
1 Deparment of Agronomy, College of Horticulture, Sirsi, Uttara Kannada (Karnataka), IN
2 Deparment of Agronomy, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN
3 Department of Agronomy, Zonal Agricultural Research Station, V.C. Farm, Mandya, IN
4 Department of Agricultural Microbiology, College of Horticulture, Sirsi, Uttara Kannada (Karnataka), IN
5 Deparment of Plant Pathology. AICRP on Spices, Horticulture Research Station, University of Horticultural Sciences, Bagalkot, Sirsi, Uttara Kannada (Karnataka), IN

Source

An Asian Journal of Soil Science, Vol 7, No 1 (2012), Pagination: 58-61

Abstract

A field experiment was conducted for two consecutive years to study the influence of FYM, compost and rock phosphate with PSB on soil nutrient balance under organic cultivation of chickpea (Cicer arietinum L.) grown in vertisol at Agricultural Research Station, Annigeri, UAS, Dharwad, Karnataka during Rabi season of 2009-10 and 20010-11. The experiment was laid out in RCBD with three replications. There were nine treatment combinations consisting of two organic manures viz., compost and FYM with four levels of rock phosphate(50, 100, 150 and 200 kg ha^-1) and an absolute control treatment for comparison. Soil nutrient balances were worked for major nutrients (NPK) taking the initial soil status, nutrient addition, crop uptake and nutrient left in the soil after harvest. The higher negative N balance was recorded with organic manures applied with higher level of rock phosphate and minimum negative nutrient balance was recorded with absolute control.

Keywords

Nutrient Management, Compost, FYM, Rock Phosphate, Nutrient Balance, Chickpea.

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• Integrated Nutrient Management Practices on Soil NPK Nutrient Balance under Organic Cultivation of Chickpea (Cicer arietinum L.) Grown in Vertisol of Northern Dry Zone of Karnataka

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Authors

S. V. Patil ¹, S. I. Halikatti ², M. N. Thimme Gowda ³, S. B. Gurumurthy ⁴, M. S. Lokesh ⁵

Affiliations
1 Deparment of Agronomy, College of Horticulture, Sirsi, Uttara Kannada (Karnataka), IN
2 Deparment of Agronomy, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN
3 Department Agronomy, Zonal Agricultural Research Station, V.C. Farm, Mandya, IN
4 Department of Agricultural Microbiology, College of Horticulture, Sirsi, Uttara Kannada (Karnataka), IN
5 Deparment of Plant Pathology. AICRP on Spices, Horticulture Research Station, University of Horticultural Sciences, Bagalkot, Sirsi, Uttara Kannada (Karnataka), IN

Source

An Asian Journal of Soil Science, Vol 7, No 1 (2012), Pagination: 66-71

Abstract

A field experiment was conducted for two consecutive years to study the Influence of Integrated nutrient management practices on soil NPK nutrient balance under organic cultivation of chickpea (Cicer arietinum L.) grown in vertisol of northern dry zone of Karnataka, at Agricultural Research Station, Annigeri, UAS, Dharwad, Karnataka during Rabi season of 2009-2010 and 2010-2011. The experiment was laid out in RCBD with three replications. There were 18 treatment combinations consisting of four different organic manures in combination viz., farmyard manure (FYM), vermi compost (VC), glyricidia leaf manure (GLM), enriched compost EC, neem cake (NC) and four different liquid manures viz., panchagavya, biodigester, cow urine and vermiwash with two control treatments RDF and absolute control (water spray). Soil nutrient balances were worked for major nutrients (NPK) taking the initial soil status, nutrient addition, crop uptake and nutrient left in the soil after harvest. The maximum gain of NPK nutrients in soil over initial recorded with the treatment EC 1/3^rd + VC 1/3^rd + GLM 1/3^rd equivalent to 100% RDN + panchagavya @ 3 % spray at flower initiation and 15 days after flowering (DAF) during both the years.

Keywords

Nutrient Management, Liquid Manure, Nutrient Balance, Chickpea.

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• Role of Systemic Fungicide Metalaxyl Mancozeb in Management of Koleroga (Phytophthora meadii Mc Rae) of Arecanut (Areca catechu L.) in Central Western Ghats of Karnataka

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Authors

M. S. Lokesh ¹, S. V. Patil ², M. G. Palashappa ³, S. B. Gurumurthy ⁴

Affiliations
1 Department of Plant Pathology, AICRP on Spices, Horticulture Research Station (U.H.S.), Sirsi (Karnataka), IN
2 Department of Agronomy, College of Horticulture, Sirsi (Karnataka), IN
3 Department of Plant Pathology, AICRP on Sesame and Niger, University of Agricultural Sciences, Dharwad (Karnataka), IN
4 Department of Agricultural Microbiology, College of Horticulture, Sirsi (Karnataka), IN

Source

Asian Journal of Bio Science, Vol 9, No 1 (2014), Pagination: 131-133

Abstract

Arecanut (Areca catechu L.) an economically important plantation crop in Central Western Ghats of Karnataka is severely affected by Koleroga/ Mahali (Phytophthora meadii Mc Rae). Under congenial environmental conditions during monsoon, the disease become severe and leads to dropping of young buttons, rotting of dropped nuts, affected trees left without management leads to rotting of crown and in due course end up in death of the tree. By regular practice of 1 per cent Bordeaux mixture application to the bunches after the appearance of the disease does not give satisfactory control. The present investigation revealed that arecanut bunches treated with systemic fungicides viz., metalaxyl mancozeb 72 WP @ 2 gl^-1 as spray for twice showed effective reduction of the disease and increase in the yield.

Keywords

Koleroga/Mahali, Metalaxyl Mancozeb 72 WP, Bordeaux Mixture, Copper Oxychloride.

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• Effect of Arbuscular Mycorrhizal (AM) Fungi on Growth Enhancement of Black Pepper (Piper nigrum L.) at Nursery Stage

Abstract Views :237  |  PDF Views:0

Authors

S. B. Gurumurthy ¹, S. V. Patil ², T. H. Shankarappa ², A. Prashant ², Ratnakar M. Shet ³

Affiliations
1 Department of Agricultural Microbiology, College of Horticulture, Sirsi (Karnataka), IN
2 Regional Horticultural Research and Extension Centre, U.H.S. Campus (G.K.V.K.) Bengaluru (Karnataka), IN
3 Department of Genetics and Plant Breeding, College of Horticulture, Sirsi (Karnataka), IN

Source

International Journal of Agricultural Sciences, Vol 15, No 1 (2019), Pagination: 137-140

Abstract

An experiment was conducted to study the effect of different Arbuscular Mycorrhizal (AM) fungi on ischolar_maining and growth of black pepper and also to assess the symbiotic efficacy and the rhizosphere population of beneficial microflora in nursery stage at College of Horticulture, Sirsi for three years (2013-14 to 2015-16). The results of the investigation had clearly showed significant improvement in growth of black pepper when black pepper cuttings were inoculated withGlomus fasciculatum similar to that of cuttings treated with IBA (1000ppm) as compared to rest of the AM fungi and un-inoculated control. A matching trend was recorded with respect to per cent ischolar_main colonization and spore counts, population of beneficial rhizosphere microflora viz., free living nitrogen fixers and phosphate solubilizers. The inoculation of AM fungi also enhanced the shoot phosphorus concentration in black pepper.

Keywords

Am Fungi, Glomus fasciculatum, P Concentration, Rhizosphere Microflora.

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