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Kumar K.,University of Agricultural and Horticultural science | Patil R.,University of Agricultural and Horticultural science | Manjunatha G.R.,Central Sericultural Research and Training Institute | Chandrakanth M.G.,Institute for Social and Economic Change
Indian Journal of Ecology | Year: 2016

In the present study, demand for forest products are projected incorporating the influence of forest institutions (FCA, 1980 and NFP 1988) and economic institution (economic liberalization) in the institutional consumption framework. The framework establishes functional relation between consumption of forest products, gross national income and institutions captured through intercept dummy and slope dummy. Secondary data on consumption of forest products and gross national income at constant prices were collected from FAO and RBI websites from the year 1971 to 2009. The relative strength of autonomous consumption and induced consumption (due to income, interaction of income with institutions) were assessed for forest products. In addition, how marginal propensity to consume varies between pre institutional (1971-1990) and post institutional period (1991-2009) was also assessed. The consumption of forest products using institutional consumption framework has been projected upto 2020. The result of the study indicated that the Marginal propensity to consume (MPC) increases overtime with real national income irrespective of the influence of institution and falls in the post institutional period signifying the presence of good governance. The magnitude of autonomous consumption overweighed the magnitude of consumption induced by income and institution for five forest products out of sixteen (31%) and for the rest of the forest products (69%) the magnitude of consumption induced by income and institutions surpassed the magnitude of autonomous consumption in inducing consumption. This precisely reflected the role of forest and economic institutions in facilitating increased consumption. The percent deviation in projection was lower using the institutional framework compared with the log linear model deployed in the other studies reflecting the forecasting ability of the model.


Sridhara S.,University of Agricultural and Horticultural science
Journal of Agrometeorology | Year: 2014

The data of kharif rice yield and the weather parameters from 1985 to 2009 is used for developing statistical models for three coastal districts of Karnataka. These pre-harvest forecasting models were developed for rice yield forecasts for Dakshin Kannada, Udupi and Uttar Kannada districts respectively. The weather indices like Z21, Z251 and Time were able to forecast the yield of rice for Udupi district. Similarly Z120, Z150 and Z241 were found to be most efficient predictors for Dakshin Kannada district. Only one variable i.e. Z451 was found to be able to forecast the rice yield in Uttar Kannada district. The validation of the model was done for a period of three years from 2010-2012. The forecasting models were able to explain the inter annual variation in the rice production to an extent of 86, 95 and 74% for Dakshin Kannada, Udupi and Uttar Kannada districts respectively. Hence these models can be used to forecast rice yield two months before harvest. © 2014, Association of Agrometeorologists. All rights reserved.


Kuchanur P.H.,University of Agricultural science | Salimath P.M.,University of Agricultural and Horticultural science | Wali M.C.,University of Agricultural Sciences, Dharwad
Indian Journal of Genetics and Plant Breeding | Year: 2013

The present study was undertaken to assess combining ability, heterosis and association among morphophysiological traits of maize under stress and optimum conditions. Elite maize inbred lines with known performance under drought were crossed in half diallel fashion. The resulting hybrids and their parents were evaluated under managed drought and optimum conditions. CI 4, Hyd Sel 4 and KDMI 15 recorded high mean grain yield and significant positive gca effects under stress where as CML 446 and NEI 9208B recorded high mean grain yield with significant positive gca effects under optimum conditions. CI 4 and NEI 9202B were identified as good combiners for grain yield. Among the 66 hybrids, 15 under optimum conditions and 21 under stress recorded significant positive heterosis over mid parent. Three hybrids viz., KDMI 15 x NEI 9202B, Hyd Sel 4 x NEI 9202B and NEI 9208B x Hyd Sel 15 were identified as high grain yielding under stress and optimum conditions. The hybrids viz., Hyd Sel 15 x Hyd Sel 17 (4.18 t ha-1), KDMI 15 x NEI 9202B (4.01 t ha-1), NEI 9208B x Hyd Sel 15 (3.96 t ha-1), CM 111 x CI 4 (3.96.5 t ha-1) and KDMI 15 x Hyd Sel 15 (3.88 t ha-1) recorded good grain yield under stress.


Murthy M.S.,University of Agricultural science | Nagaraj S.K.,University of Agricultural science | Prabhuraj A.,University of Agricultural science | Kalleswaraswamy C.M.,University of Agricultural and Horticultural science
Florida Entomologist | Year: 2015

During Rabi (spring harvest) 2014-2015, the occurrence of Cnaphalocrocis medinalis Guenée (Lepidoptera: Crambidae) was noticed on wheat in and around Yadgir and Vijayapur Districts of Karnataka, India. To our knowledge, this is the first record of this species on wheat from India. We provide descriptions and illustrations of adult morphological and genitalic characters to aid in identification of the pest.


Raviraja Shetty G.,University of Agricultural and Horticultural science | Shruthi A.M.,University of Agricultural and Horticultural science
International Journal of Pharma and Bio Sciences | Year: 2015

In Ayurveda many medicinal plants are described and are widely used by traditional practitioners for curing and controlling various diseases. Acorus calamus is one of the important herbs known for its medicinal properties. It is a perennial, aromatic herb with creeping rhizomes commonly known as sweet flag and contains a wide variety of phytoconstituents having different medicinal properties. The active constituents such as phenyl propanoids, sesquiterpenes and monoterpenes as well as xanthone glycosides, flavones, lignans, steroids obtained from the plant has been proved to show various pharmacological activites such as insecticidal, larvicidal, antibacterial, mutagenic, cytotoxic, hepatoprotective, anticonvulsant, neuroleptic, smooth muscle relaxant and smooth muscle stimulant activity. This review is done to reveal the scope and application of Acorus calamus in the pharmaceutical and agricultural field to bring out more drugs and natural products out of it and also deals with various marketed product of Acorus calamus.


Gopakkali P.,University of Agricultural Sciences, Bangalore | Gopakkali P.,University of Agricultural and Horticultural science | Sharanappa,University of Agricultural Sciences, Bangalore
Indian Journal of Agronomy | Year: 2014

The field experiment was conducted during summer 2012 and winter season (rabi) of 2012–13 to study the effect of different sources of organic manures on growth, yield, quality and economics of onion (Allium cepa L.). The experiment was carried out in organic experimental plot at Zonal Agriculture Research Station, GKVK, Bengaluru, under organic crop production. There were 13 treatments, comprising basal application of farmyard manure, vermicompost, biodigested and enriched biodigested liquid manures (BDLM and EBDLM applied after swoing in 3 splits), 3 sprays of 3% panchagavya (PG) and vermiwash (VW). Application of enriched biodigested liquid manure (EBDLM) at 100 kg N equivalent/ha + 3 sprays of panchagavya (3%) recorded the highest plant height (42.3 cm), leaves/plant (8.1), leaf diameter (1.46 cm), leaf-area index (4.26), total dry matter production/plant (7.59 g), fresh weight of bulb (143.7 g), bulb yield (42.8 tonnes/ha), neck diameter (1.42 cm), bulb diameter (6.02 cm), bulb length (5.36 cm), bulb size index (32.26 cm2/bulb), ascorbic acid (26.1 mg/100 g), total soluble solid (14.4%), reducing sugar (3.98%), non-reducing sugar (9.05%), total sugar (13.03%), gross returns (4,72,000), net returns (3,61,557) and benefit: cost ratio (4.27). © 2014, Indian Society of Agronomy. All rights reserved.


Raviraja Shetty G.,University of Agricultural and Horticultural science | Monisha S.,University of Agricultural and Horticultural science
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2015

Traditional system of medicinal consists of large number of plants with various medicinal and pharmacological importances and hence represents a priceless tank of new bioactive molecules. Alpinia galanga (Linn.) is one amongst these, found all over the world. It is commonly known as 'Kulanjan'. Different parts of this plant are traditionally claimed to be used for the treatment of anti-fungal, anti-tumor, anti-diuretic, disease of heart, rheumatic pains, dyspepsia, fever, diabetes etc. Therefore, the present review aimed to compile up to date and comprehensive information of Alpinia galanga with special emphasis on its photochemistry, various scientifically documented pharmacological activities, traditional and folk medicine uses along with its role in biofuel industry. The present review will highlight the chemical constituents and the pharmacological and therapeutic effects of Alpinia galangal.


Bagyaraj D.J.,Center for Natural Biological Resources and Community Development and 41 | Thilagar G.,Center for Natural Biological Resources and Community Development and 41 | Ravisha C.,Center for Natural Biological Resources and Community Development and 41 | Kushalappa C.G.,University of Agricultural and Horticultural science | And 3 more authors.
Agriculture, Ecosystems and Environment | Year: 2015

Soil microorganisms viz. bacteria, fungi, actinomycetes and arbuscular mycorrhizal (AM) fungi present in different typologies of coffee production systems were compared. In this study, two types of coffee plants, namely Arabica and Robusta, were grown under different agroforestry management such as coffee under one specialized shade species, multi-story coffee systems with 2 shade tree species, and coffee with 3 or more tree species under moist deciduous and evergreen ecological conditions. Samples were collected from 36 points to include different coffee ecosystems. The highest number of infective propagules of AM fungi was encountered in Arabica coffee under evergreen conditions. Population of bacteria, fungi and actinomycetes were higher under evergreen ecosystem compared to that of deciduous conditions. The population of nitrogen fixing bacteria was more than double in evergreen conditions compared to deciduous ecosystem. Number of lignin decomposing bacteria was higher in evergreen compared to deciduous conditions, but starch hydrolyzing bacteria and pectin-utilizing bacteria were more in deciduous ecosystem. Actinomycetes DAT2-1 isolated from deciduous ecosystem showed antagonistic activity against the root pathogen Fusarium chlamydosporum. It can be concluded that evergreen coffee system supports higher population of microorganisms. Of the two species of coffee, Arabica harboured more AM fungi, bacterial population, N fixers, P solubilizers and cellulose decomposing organisms while Robusta harboured higher number of fungi and actinomycetes. Of the three typologies, coffee grown under two shade tree species supported higher population of all microorganisms. © 2015 Elsevier B.V.


Asma A.,University of Agricultural and Horticultural science | Hanumantharaya L.,University of Agricultural and Horticultural science
Ecology, Environment and Conservation | Year: 2015

The investigations were carried out on evaluation of organic and inorganic pesticides for the management of thrips, mites and Leaf Curl Index (LCI) (var. Rudra) was conducted during summer 2013 at Sabbenahalli, Mudigere taluka of Chikmagalur district, Karnataka, India. Among the different treatments, two sprays of Imidachloprid 36 SL @ 0.3 mL/L at 2 & 5 WAT, two sprays of Flubendiamide 480 SC @ 0.2 mL/L at 7 & 11 WAT, one spray of Fenazaquin 10 EC @ 1 mL/L of at 9 WAT recorded lowest population of thrips and mites which was followed by two sprays of Imidachloprid 17.8 SL @ 0.3 ml/1 at 2 & 5 WAT, two sprays of Spinosad 45 SC @ 0.25 mL/L at 7 & 11 WAT, one spray of Fenazaquin 10 EC @ 1 mL/L at 9 WAT were proved to be better management tactics. Copyright © EM International.


Kalleshwaraswamy C.M.,University of Agricultural and Horticultural science | Adarsha S.K.,University of Agricultural and Horticultural science | Naveena N.L.,University of Agricultural and Horticultural science | Sharanabasappa,University of Agricultural and Horticultural science
Journal of Asia-Pacific Entomology | Year: 2016

White grub, Leucopholis lepidophora Blanchard (Coleoptera: Scarabaeidae: Melolonthinae), is a major insect pest infesting areca nut in India. Larvae feed on roots (hence also called root grubs), causing reduced number of roots, loss of anchorage, stem tapering, reduced number of fronds, yellowing of leaves, yield reduction and death of the plants. The biology and ecology aspect of this scarabaeid are scanty. Hence, the aim of this study was to understand the ecological and behavioral aspects to develop IPM program. The adult emergence pattern of L. lepidophora was observed daily during the rainy season. The emergence period was defined between June and October during 2013 and 2014. Peak emergence of adult beetles occurred between 1900 and 2000 h. When raining occurred between 1800 and 2100 h, no emergence of adult beetles was observed. The sex ratio of L. lepidophora varied over time, but the overall sex ratio was female biased in both the study years (female:male; 1:1.18 and 1:1.46 in 2013 and 2014, respectively). Males were found to emerge first in the season resulting in protandry. Innovative idea emerged during our field experiments in 2013-2014 was the use of female beetles for attracting male beetles. Female adults were collected and placed individually in traps made of small pouches of nylon net and were tied to the areca palm at a height of 5 ft. Trap containing a female beetle attracted male individuals for about 8-10 days. The same technique was employed for the large-scale collection of beetles during 2014. A total of 1843 males were collected in an areca grower's field using female-baited traps during 2014. Male baited traps did not attract female beetles, indicating existence of only female produced semiochemical that attracts males. Our findings provide new insights for incorporating adult collection using female-baited traps in IPM against areca nut white grubs. © 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society.

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