Browsing by Author "SHARMA, DEEKSHA"
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ThesisItem Open Access FRUIT FLY FAUNA OF HIMACHAL PRADESH AND MANAGEMENT OF SOME OF THE MAJOR SPECIES(UHF,NAUNI, 2019-07) SHARMA, DEEKSHA; GUPTA, DIVENDERABSTRACT The present investigations on “FRUIT FLY FAUNA OF HIMACHAL PRADESH AND MANAGEMENT OF SOME OF THE MAJOR SPECIES” were conducted during 2013-2016. In the present study, during the survey of fruit flies in Himachal Pradesh, 10 species of tephritid fruit flies were recorded from different locations of Himachal Pradesh. Acidoxantha sp. was captured in methyl eugenol traps, which is a new record from Himachal Pradesh and B. nigrofemoralis was first reported from the host i.e. the infested peach from India. B. latifrons, was reported from infested fruits of Solanum nigrum (Makoi/Kalihari) which is a first record from Himachal Pradesh. The bio-efficacy trial conducted on cucumber, tomato and mango revealed application of lambda cyhalothrin @ 0.008 and 0.004% and spinosad (0.004%) proved effective in checking fruit fly infestation. Azadirachtin (0.02%) was comparable to the recommended insecticide i.e. malathion (0.1%) in checking the fruit fly infestation. Among five different woods, namely meranti, eucalyptus, deodar, plyboard and mango, plyboard traps (methyl eugenol based) showed better efficacy as reflected by highest fruit fly catch in the peach and mango orchards. When shapes were compared, rectangular cuboid plyboard traps performed better in comparison to square cuboid ones. When comparative efficacy of malathion and spinosad as an insecticide in methyl eugenol and cue-lure based traps were studied, it was observed that the spinosad based traps had better efficacy in fly trapping as compared with malathion in both types of attractant traps. In the laboratory studies, phloroglucinol 200 mM) when fed in the diet to B. tau and B. cucurbitae resulted in lowest oviposition. The ovaries were found clumped and the eggs laid were also deformed. Among different absorbent materials, initially no difference was observed in materials namely absorbent cotton, non-absorbent cotton and sponge, but later on after 5 days the results recorded in sponge based material were encouraging.ThesisItem Open Access IMPACT OF LAND USES ON WATER QUALITY IN BILASPUR DISTRICT OF HIMACHAL PRADESH(NAUNI,UHF, 2020-12) SHARMA, DEEKSHA; M K BRAHMIABSTRACT The present investigation entitled “Impact of Land Uses on Water Quality in Bilaspur District of Himachal Pradesh” was conducted in Bilaspur district of Himachal Pradesh by taking three dominant land uses namely urban/peri-urban, agriculture and forest, two water sources i.e. surface and ground water and two seasons i.e. winter and monsoon season. Samples were analyzed for physico-chemical parameters viz. temperature, colour, odour, turbidity, pH, EC, TDS, BOD, COD, cations and anions (Ca2+, Mg2+, Cl-, and NO3-) and heavy metals. Under all the land uses, the colour of water sources varied from clear to light brown and all the samples were odour free. Higher turbidity (4.33 NTU) was recorded under urban/peri-urban land use in monsoon season. The pH of water sources ranged from 6.96 to 8.59. The highest value of EC (723.67 µS cm-1) was recorded under urban/peri-urban land use in monsoon season. TDS was found between 101.23 - 480.67 mg l-1. Higher TDS (480.67 mg l-1) was recorded under urban/peri-urban land use in monsoon season. Higher BOD value (3.65 mg l-1) was recorded in monsoon season under urban/peri-urban land use. Higher COD value (215.67 mg l-1) was recorded under urban/peri-urban land use in monsoon season. Calcium content in water sources ranged from 35.33 to 129.67 mg l-1. Highest Ca2+ content (129.67 mg l-1) was recorded under agriculture land use in winter season. Higher Mg2+ content (55.33 mg l-1) was recorded under agriculture land use in winter season. Chloride concentration in water sources was found between 25 – 137.67 mg l-1. Higher chloride content (137.67 mg l-1) was recorded under urban/peri-urban land use in monsoon season. NO3- content in both the water sources varied from 3.67 to 27.73 mg l-1. Higher NO3-content (27.73 mg l-1) was recorded under agriculture land use in monsoon season. Cadmium content was found between 0-0.024 mg l-1. Highest Cadmium content (0.024 mg l-1) was recorded under urban/peri-urban land use in winter season. The iron content of water sources ranged from 0.01 to 0.29 mg l-1. Higher Fe content (0.29 mg l-1) was observed under urban/peri-urban land use in monsoon season. Lead concentration ranged from 0 to 0.038 mg l-1. Higher Zn content (0.120 mg l-1) was recorded under agriculture land use in winter season. Higher Ni content (0.360 mg l-1) was observed under agriculture land use in monsoon season. Highest WQI (61.65) was recorded under urban/peri-urban land use which was rated as poor quality. In monsoon season highest WQI (52.54) was recorded and water quality rated as poor. The study indicated that the land uses viz. urban/peri-urban and agriculture have started impacting the quality of surface and ground water sources. In the district, urbanization and agricultural practices have resulted poor surface water quality as compared to forest, wherein it was good. The urbanization has also impacted ground water quality in the region. Surface water quality has also negatively influenced during monsoon season. Therefore, there is urgent need to regulate urbanization and agricultural practices in the district by promoting environmental friendly development and practices for healthy ecosystem.ThesisItem Open Access INVESTIGATING UHF EMPLOYEES' INTENTION TO BUY ORGANIC FOODS(NAUNI,UHF, 2020-10) SHARMA, DEEKSHA; KRISHAN KUMARABSTRACT The Present Study on “Investigating UHF Employees Intention to Buy Organic Foods” was carried out on 210 respondents. Considering the numerous environmental crises in India, promotion of consumer behaviour to purchase organic food products as the green marketing perspective can be a fundamental way of increasing the social responsibility of consumers and, consequently, reducing environmental damage. Therefore, the objective of the study was framed to underline the intentions of employees towards organic foods at UHF. The study explored factors which are instrumental in developing intentions and let us to gain deeper insights into factors like health considerations, environmental concern as determinant of organic food purchases. The study is helpful to enhance the understanding towards purchase of organic foods in India.