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University of Agricultural Sciences, Dharwad

The University of Agricultural Sciences, Dharwad was established on October 1, 1986. The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops. Considerable progress has been registered in the field of education, research and extension from this University.

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2006 - 2009799
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Type: Thesis × Start date: 2006 × End date: 2009 ×
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Now showing 1 - 9 of 799
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    ThesisItemOpen Access
    CLONING OF ENDOCHITINASE AND ENDOGLUCANASE GENES FROM NATIVE ISOLATES Trichoderma
    (University of Agricultural Sciences Dharwad, 2009-06) MANJUNATH SWAMY J. K.; Dr. SUMANGALA BHAT
    Eighty six Trichoderma isolates previously isolated and maintained in the Department of Biotechnology, were screened against Sclerotium rolfsii, Rhizoctonia solani and Colletotrichum capsici through dual plate assay. Based on growth inhibition, they were grouped into efficient, moderate and poor isolates. Further, endochtinase (ech42) and endoglucanase (, 1-6 endoglucanase) genes were cloned from efficient, moderate and poor isolates of T. harzianum using specific primers. Differences were not observed in the amino acid sequences of ech42 cloned from efficient, moderate and poor isolates of same species (T. harzianum). However, ech42 cloned from most efficient isolates of T. virens showed differences at amino acid level in 15 positions compared to ech42 cloned from T. harzianum. Further, the , 1-6 glucanase gene cloned from efficient, moderate and poor isolates showed differences at amino acid level. The gene cloned from efficient (IABT 1041) T. harzianum isolates differed from other two cloned from moderate and poor isolates (IABT 1046 and IABT 1054) in 10 amino acid positions and the , 1-6 glucanase cloned from IABT 1046 and IABT 1054 differed at 2 amino acid positions. The cloned genes can be further subjected for expression and bioassay studies to know their utility in development of transgenic plants.
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    ThesisItemOpen Access
    Production and value addition in naturally coloured cotton under contract farming - An economic analysis
    (University of Agricultural Sciences ;Dharwad, 2006) Dodmani, M.T; Kunnal, L.B
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    ThesisItemOpen Access
    Molecular evidence to in vitro pollen bioassay for wilt resistance in chickpea
    (University of Agricultural Sciences ;Dharwad, 2007) Ratna Babu, D; Ravikumar, R.L
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    ThesisItemOpen Access
    Production and marketing of under-utilized millets in Karnataka - an economic analysis
    (University of Agricultural Sciences ;Dharwad, 2007) Naik, Annesh D; Kunnal, L.B
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    ThesisItemOpen Access
    Business efficiency in rice mills-A comparative analysis of conventional and modern rice mills in davanagere District
    (UAS, Dharwad, 2009) Shwetha.M.K.; S.B.Mahajanshetti
    India ranks second in production of rice next only to China. Rice milling is the oldest and the largest agro-processing industry of the country. The present study had made an attempt to document investment pattern and financial feasibility, inventory management, processing and marketing management, cost and returns in both conventional and modern rice mills. Primary and secondary data were collected to evaluate the objectives of the study. Ineffective management on the part of the processors has led to the failure or poor performance of many rice milling units. Therefore the study focuses on the management aspects and its managerial lapses in order to evolve appropriate policies for improving the efficiency of the rice mills. Totally six rice mills in were selected in Davanagere district of Karnataka. Further, they were categorized into conventional rice milling units and modern rice milling units based on the technology adopted. The results showed that the total investment on modern rice mills was ten times higher (Rs.379.25 lakhs) as compared to conventional rice mills (Rs.36.97 lakhs). The Net Present Value for modern unit and conventional unit was Rs.408.35 and Rs.27.55, respectively. The capacity utilization was higher (68%) in modern units in comparison with conventional units (44%). The total returns obtained from both rice milling and poha making process were higher in modern rice units (Rs.1478) as compared to conventional units (Rs.1381). This showed that the modern rice mills were more efficient than the conventional rice mills. Procurement costs were lower when paddy was purchased directly from farmers instead of purchasing commission agents. Thus, mills would benefit from strong contractual arrangements with paddy growers.
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    ThesisItemOpen Access
    Genome-wide molecular mapping, introgression of stable QTLs and expressional quantitation of transcription factor genes in charcoal rot manifestation in sorghum bicolour (L) Moench
    (UAS, Dharwad, 2009) Ayyanagouda.M.Patil; B.Fakrudin
    Recombinant inbred lines derived from the cross IS22380 (susceptible) and E36-1 (resistant) were characterized for the morphological and biochemical components of charcoal rot resistance and yield related traits at three locations over four rabi seasons revealed significant differences among RILs and GxE interactions. A significant association among relevant traits was noticed at phenotypic and genotypic level with high heritability estimates. A total of 141 polymorphic DNA markers (48/275 SSRs, 65/533 EST-SSRs, 28/410 RAPD) were genotyped to construct a genetic linkage map spanning 2905 cM and used for Composite Interval Mapping of QTLs. Stable QTLs were detected lodging percent (xtxp176– xtxp312 (CR1) number of internodes crossed by the fungus (xtxp297-xiabt273 (CR2) and length of infection (xtxp275-xtxp241(CR3): the additive effect at all these loci was contributed by E36-1. Two major QTLs of plant height and three QTLs of plant yield accounted for 38% and 41% phenotypic variance respectively. On LG-I, the genomic region flanked by xtxp274–xiabt29 harbored a common QTL. Three stable QTLs, CR1, CR2 and CR3 collectively contributing 43% of phenotypic variation were introgressed into M35-1 and SPV86 backgrounds: at BC1F1 with 2285 and 2033 marker and at BC2F1 5989 and 6002 marker points in M35-1 and SPV86 backgrounds were screened to identify progenies harboring all the three QTLs. Expressional quantitation of 185 transcription factor genes was done in charcoal rot challenged and control tissue of E36-1 and SPV86 genotypes at 75 DAS and 90 DAS where 142 genes up regulated in both genotypes while eight genes of five family viz., AP2 (PTSb00019.1, PTSb00022.1, PTSb00024.1 WRKY (PTSb00331.1), HMG (PTSb00179.1, PTSb00185.1) ARF (PTSb00033.1) and bHLH (PTSb00349.1) were up regulated in pathogen challenged tissues. Two genes of WRKY family (PTSb00328.1 and PTSb00331.1) were significantly up regulated in resistant genotype alone: these understandings would help in developing strategies for resistance breeding in sorghum.
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    ThesisItemOpen Access
    Exploitation micromus igorotus Banks and micromus timidus Hagen (Hemerobliidae: Neuroptera) in the management of aphids in cotton and tobacco
    (UAS, Dharwad, 2009) S.S.Navi; S.Lingappa
    Micromus timidus accepted nine aphid species and a psyllid as host. Leaves, open bolls and cotton thread served as oviposition substrates. Full grown larva pupated in double layered cocoon in counseled places. Aphis gossypii and Melanaphis sacchari found to be most suitable hosts as growth, development reproductive traits and feeding potential were in favour. Egg to adult and egg to egg duration was shortest on A. craccivora followed by M. sacchari. Both larva and adult of M. timidus consumed higher number of A. gossypii and M. sacchari as most palatable food sources. Morphometry of mouth and body parts were also recorded. Rearing of Micromus igorotus on A. gossypii and C. lanigera for five generations did lower fecundity slightly but not other traits. Reduction in survivability of egg, larva and adult was evident. Micromus igorotus @ 1,000 adults/ha outperformed in reducing cotton aphid population. Five pairs of M. timidus adults/plant reduced the cotton aphid population. Five pairs of M. timidus adults/plant reduced the cotton aphid population effectively with higher predatory recovery. On tobacco, 20,000 to 25,000 M. igorotus adults/ha reduced aphid population and increased yield by 46.6 and 56.8 per cent. Release of five pairs of M. timidus adults/plant was also effective. Emamectin benzoate was highly toxic to all stages of M. igorotus and M. timidus and thiodicarb was least toxic to eggs and larva. Profenophos at recommended field concentration persisted at greater level to inflect above 90 per cent mortality to grubs up to 7 days and retained toxicity for 30 days. The order of persistent toxicity was profenophos>thiomethoxam >methomyl>imidacloprid>novaluron>thiodicarb>emamectinbenzoate>spinosad> indoxacarb. Micromus igorotus eggs were devoured by C. carnea grubs, C. sexmaculata grubs and adults and syrphid maggots under free choice in the presence of aphid. While, M. igorotus did not feed on any stage of these predators.
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    ThesisItemOpen Access
    Documentation of traditional convenience foods of north karnataka
    (UAS, Dharwad, 2009) Savita Ishwarappa; Bharati V.Chimmad
    Documentation of traditional convenience foods of North Karnataka was conducted across hilly, transitional, coastal and dry zones (urban and rural) during 2008-09, methods, modification, seasonality and factors influencing of traditional convenience foods preparations were collected through personnel interview and participatory rural appraisal techniques from middle income families (240). Market survey of food shops of Dharwad was carried out to document the traditional convenience foods, purchase preference among different populations. Nutrient composition of selected traditional convenience foods available in Dharwad market was undertaken using Annapurna software. The study revealed that 162 traditional convenience foods (106 ready-to-eat and 56 ready-to-use) documented across the regions more among urbanites (134) compared to rural group (81). Cereal based foods dominated (60) the category (ready-to-eat 32, ready-to-use 28). It was observed that the traditional conveience foods actually prepared (rural 81 and urban 64) were less than the documented (rural 131, urban 134). It was evident that high school attended respondents, housewives not employed generally prepared more convenience foods. Family size, type and number of generations living together negatively influenced the preparation of traditional convenience foods. There were 70 traditional convenience foods in the market. Nutrient computation revealed that Shenga laddu provided highest calories (189 Kcal) coasted groundnut highest protein and foat (6.87 g and 13.35 g) ragi laddu highest calcium (89.35 mg) and rice flakes chivda highest iron contents (10.15 mg) per serving. Modifications interms of ingredients, methods of preparation were observed for sensory quality, convenience, economy and variety. Thus the study documented a vast range of traditional convenience foods across the different zone of North Karnataka. Some of which are available in the market. There is a scope for introducing various traditional convenience foods into the market for various reasons.
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    ThesisItemOpen Access
    Comparative Studies On the Performance Of Yellow and Black Colour Morphs Of Apis cerena indica F. At Sirsi, Karnataka
    (UAS, Dharwad, 2009) Ningappa Banakar; S.T.Prabhu
    A. cerana population in Karnataka is composed of two distinct colour morphs: the yellow morph and the black morph. The two populations are called as ‘hill morph’ which are black in colour and restricted to higher elevations and seen in Western Ghats ecosystem, and the other as ‘plain morph’ which are yellow in colour and restricted to plain areas of lower elevation. The results of comparison study showed that the black hill morph and yellow morph performed on par with each other with respect to all parameters of foraging activities and brood rearing activities. There was no significant difference between both colour morphs when statistically analysed for number of outgoing bees, number of pollen gatherers and number of nectar gatherers activity. The brood rearing activity of both colour morphs was on par. Brood rearing parameters like pollen area and nectar area exhibited no significant difference between two colour morphs. The bee plants identified in Sirsi include Aporosa lindleyana, Ailanthus triphysa, Cocos nucifera, Careya arborea, Flacourtia Montana, Peltoforum ferrugenium, Sapindus emerginatus, Syzygium caryophyllaeum, Syzygium cumini, Tridax procumbens and Terminalia tomentosa among 77 tree species, 10 shrubs and herbs. There were 19 species of plants which served as only pollen sources. The number of plants identified as only nectar source was 30 tree species and 27 number of plants was identified as both nectar and pollen source. Majority of bee plants identified had the flowering period from January to May. Among the 10 shrubs and herbs 2 are nectar yielders and 8 species are both pollen and nectar yielders. On par performance of yellow colour morph with local black colour morph at Sirsi indicated that yellow colour morph can be successfully introduced to hill conditions in Western Ghat region of Uttara Kannada, where there are assured flora sources for pollen and nectar.