Browsing by Author "PRAVEEN KUMAR"
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ThesisItem Open Access ABUNDANCE, DIVERSITY AND COMPOSITION OF UNDERSTORY VEGETATION ALONG THE ALTITUDNAL GRADIENTS AND OVERSTORY COMPOSITION TYPES IN TEMPERATE REGION OF HIMACHAL PARDESH(UHF,NAUNI, 2023-09-26) SAVEENA; PRAVEEN KUMARABSTRACT The present study entitled “Abundance, diversity and composition of understory vegetation along the altitudinal gradients and overstory composition types in temperate region of Himachal Pradesh” was conducted in the temperate region of Himachal Pradesh, The aim of the study was to understand the pattern of understory diversity, abundance and species composition of understory vegetation communities along the altitudinal gradients and overstory composition types. A total of 93 understory species including 31 species in the shrub layer, 62 species in the ground layer vegetation (55 vascular and 7 non-vascular) were recorded in the present study. The abundance, species diversity and composition of shrub and total understory vegetation differed significantly along the altitudinal gradients and dominant overstory composition types. Vascular and non-vascular species responded differently along the altitudinal gradients and dominant overstory types. The hump shaped pattern along the altitudinal gradients appeared to be the most dominant pattern of plant abundance and species diversity and call for more conservation concern towards the mid elevation zones in the temperate Himalayan region. The study also highlighted the importance of dominant overstory composition types in driving the abundance, species diversity and composition of shrub and total understory vegetation in the Temperate Himalayan region. Therefore management interventions should aim at maintaining diverse range of overstory composition types for conserving biodiversity and their ecological functions in the temperate Himalayan region. The study also found the positive correlation of vascular and shrubs cover to the vascular and shrub species diversity, and negative correlation of vascular and shrub layer cover to non-vascular species diversity, and supported the positive diversity and productivity hypothesis in the temperate Himalayan region. However, the magnitude and direction of diversity– productivity relationships was context specific and dependent on the surrounding environmental conditions.ThesisItem Open Access An analytical study of Communication through Traditional Folk Media for Rural Development in Rajasthan(Division of Agricultural Extension Indian Agricultural Research Institute, New Delhi- 110012, 2020) PRAVEEN KUMAR; Venu LeninSince great civilizations people started communicating through different modes and methods but with the time around 30 percent started residing in cities but around 70 percent people still resides in countryside. Though people still use traditional media for communication in rural areas but with the advent of modern media the potential of other modes of communication including traditional folk media is undermined. As our society is changing in many aspects the people started using modern media as a mode of communication and source for information as they are easily available at a cheaper cost. But as the rural and remote areas in our country are concerned several challenges hinders the use of these modern media. An attempt in this study was made to understand the traditional folk media and communication aspects linked with it, which will help in improving the content of folk media and communication itself. Systematic documentation of traditional folk media into a well structured information base can help in an easy understanding of folk media for present and future generations. The research study was conducted purposively in Rajasthan state due to its richness and vastness in traditional folk media and other cultural set up. Jodhpur and Jaipur districts were purposively selected for the study. Two blocks from each district and one village from each block were purposively selected based on presence of practicing folk artists in the village. Fifteen folk artists, fifteen development functionaries and thirty folk media audience were selected from each district and total sample size was 120. Data collection tools like semi structured interview schedule and focus group discussion were used. Various traditional folk media were documented and categorized as folk dance (Kalbelia, Ghoomar, Teratali, Kachigodhi, Loor, Bhavai), folk songs (Langha, Bhat, Brahmin, Bhand, Dhodi, Rajput), puppet show, folk proverbs and folk drama ( Khayal, Pabuji ka Phad). From the results it was revealed that folk media artists and development iv functionaries preferred folk songs (37.60) followed by puppet show (29.22), folk theatre (28.70) and folk dance (20.68) in both districts based on the mean Garret score. Relationship between attributes of message and channel was analyzed by calculating the Pearson correlation coefficient between attributes. Attention getting attribute of message have shown correlation with ease in understanding (-.471), informative (-.397) and receivability (-.402) and accuracy was positively correlated with suitability (0.392) and one attribute of channel dependability have shown negative correlation with suitability (-.560). Content of forty popular folk media songs were analyzed, the result of which have shown that 11.26 per cent information communicated was related to social relations , 7.26 per cent was related to entertainment and 5.27 % was related to agriculture and only 2.50 per cent information was related to health. Results of utilization pattern of folk media have explained that 60 % of folk artists and development functionaries used folk media regularly, 50 % of folk artists and development functionaries spent less than one hour in using the same and 55 per cent of folk artists and development functionaries spent night time for using folk media. Among perceived management constraints the lack of reinforcement of the programme was ranked first (38.13) and among financial constraints lack of incentives given to folk media was ranked first (38.56), among communication constraints elements of external barrier such as noise was ranked first (38.42), among technological constraints long duration of programme was ranked first (34.76) and among social constraints non participation of audience in problem solving was ranked first (39.77). To maintain the folk culture government should initiate measures such as providing incentives to folk artists. The result of research study clearly shows the communication aspects of folk media. Traditional folk media have great potential which can help the development functionaries to use them effectively for information disseminationThesisItem Open Access BREEDING INVESTIGATIONS FOR IMPROVING DROUGHT TOLERANCE IN MAIZE (Zea mays L.)(University of Agricultural Sciences Dharwad, 2015-03) PRAVEEN KUMAR; Dr. O. SRIDEVIAn investigation was carried out at AC, Dharwad to isolate inbred lines and develop single cross hybrids tolerant to drought by studying combining ability and heterosis with respect to yield and drought tolerance traits and to assess the stability of hybrids. 200 S2 inbred lines and 80 S3 inbred lines developed from two top cross hybrids (ParbhatxCI4 and NAC6002xCI4), four three-way crossed hybrids (All-RounderxHS-17, NK6240xCI4, NK6240xHS-17 and RajkumarxCML446), one composite x composite crossed hybrid (G57xNAC6002) were evaluated under stress and non stress situations. The analysis of variance revealed presence of significant differences for all physiological and yield related traits. 30 inbred lines selected from S3 progenies based on yield (mean+1SD) and less ASI (mean-1SD) were crossed with 5 testers and resulting 150 hybrids were evaluated along with parents and checks under stress and non stress situations during summer 2013-14. The analysis of combining ability revealed that SCA variance was higher than GCA indicating predominance of non-additive gene action in controlling majority of the traits under non stress situation and under stress situation all traits. Out of 30 inbred lines, Rajkumar×CML446 line37 and NK6240×CI4 line24 under non stress situation were found good general combiners for chlorophyll content at 90 DAS, cob girth, number of kernels/row and grain yield kg/ha, Rajkumar×CML446 line18 was found to be good general combiner for chlorophyll content at 90 DAS, cob length, number of kernels/row and grain yield kg/ha. Under stress situation, the hybrids viz., (Rajkumar×CML446 line18)×HS7, (Rajkumar×CML446 line46)×HS4, (Allrounder× HS17 line34)×HS7, (NK6240×HS17 line14)×HS7 and (Allrounder×HS17 line45)× HS10 recorded significant superiority for grain yield kg/ha over best checks NK-6240 and Rajkumar. The hybrid viz., (Allrounder×HS17 line 34)×HS7 recorded significant superiority for grain yield kg/ha over the best checks under both situations. The single cross hybrids viz., HS-15×HS-17, KDMI-15×NEI-9202B and CI-4×HS-4 were identified as stable under stress, non-stress and under rain fed situations respectively.ThesisItem Open Access DYNAMICS OF ABOVEGROUND VEGETATION BIOMASS AND CARBON STOCKS ALONG THE ALTITUDINAL GRADIENTS AND OVERSTOREY COMPOSITION TYPES IN THE TEMPERATE REGION OF HIMACHAL PRADESH(UHF,NAUNI, 2023-10-11) GEETANJALI; PRAVEEN KUMARABSTRACT The present study entitled “Dynamics of above ground vegetation biomass and carbon stocks along the altitudinal gradient and overstorey composition types in temperate region of Himachal Pradesh” was conducted in the temperate region of Himachal Pradesh, The main objective of the study was to determine the distribution pattern of above ground biomass and carbon stocks along the altitudinal gradients and dominant overstory types. Biomass of the total and individual vegetation components differed significantly along the altitudinal gradients and among different overstorey type, with significant interaction effects of altitude and overstorey types. Across all altitudinal gradients and dominant overstorey composition types, total, tree, shrub, herb and bryophytes biomass and carbon stocks on average were 372.7, 369.1, 2.76, 0.77 and 0.10 Mg ha−1, and 177.1, 175.3, 1.31, 0.37 and 0.05 Mg ha−1, respectively. The total and tree aboveground biomass and carbon stocks exhibited a gradual and consistent increase along the altitudinal gradients and decreased thereafter at higher altitudes. The study also emphasized that the role of dominant overstorey composition types in biomass and carbon stocks distribution in the temperate Himalayan region. However, shrub, herb and bryophyte biomass production responded differently for dominant composition types. The mixed wood stands were found to be more productive and had higher biomass and carbon stocks at higher altitudes. Therefore management interventions should aim at maintaining diverse range of overstory composition types for promoting the ecosystem functions and services of temperate Himalayan forest ecosystems. The study also found a weak but positive correlation between total and tree above ground biomass production to the availability of soil resources, which indicated that the relationship between local topography and forest vegetation structures might have played a major role in distribution of biomass than the soil resource availability along the altitudinal gradients in temperate Himalayan Region.ThesisItem Open Access EVALUATION OF LAND RESOURCES OF CHOTANAHALLI MICRO-WATERSHED, TUMKUR DISTRICT, KARNATAKA USING GEOSPATIAL TECHNIQUES(UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2020-09-03) PRAVEEN KUMAR; CHIKKARAMAPPA, T.An intensive study of micro-watershed was carried out for evaluation of land resources of Chotanahalli micro-watershed of Karnataka, using geospatial techniques for characterization and classification, to assess soil fertility, generation of thematic maps and to prepare potential land use plan for micro-watershed. Nine master profiles were characterised and classified, seven soil profiles in which 1,2,4,5,6,7 and 8 were classified as Alfisols and two profiles that is 3 and 9 were classified as Inceptisol. Soil depth was shallow to very deep. Soil reaction and EC showed irregular trend with depth. Soil erosion is divided into two classes namely slight erosion (e1) and moderate erosion (e2) and slope was nearly level to gently sloping. The OC decreases with the increase in depth of profiles. The CEC, BD and MWHC increased with increase in depth of profiles. The exchangeable bases found in the order of Ca+2>Mg+2>Na+>K+ on the exchange complex in profiles. The pH of surface soil is strongly acid to slightly alkaline in reaction. SOC, S and B were low to medium in range. The available N, P, K were medium in range and Ca and Mg were sufficient in soil. Fe, Mn and Cu were sufficient and Zn was present in deficient to sufficient range. The land capability classes were classified as II and III, with limitations that is depth, gravelliness and texture. Land suitability is evaluated and suggested for field and horticulture crops based on land resources and socio-economic assessment, total six land management units were formed which can be utilized by the implementing agency while preparing the detailed plan for the micro-watershed.ThesisItem Open Access EVALUATION OF STATISTICAL MODELS FOR STUDIES ON SPATIAL DISTRIBUTION, DIVERSITY AND ABUNDANCE OF TREE SPECIES ACROSS THE WESTERN GHATS OF KARNATAKA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2002-11-08) PRAVEEN KUMAR; Gowda, D.MNo AbstractThesisItem Open Access GENETIC ANALISYS OF SEED YIELD AND ITS COMPONENTS IN CHIKPEA (Cicer arletinum L.)(JAU,JUNAGADH, 2015-06) PRAVEEN KUMAR; M.S PITHIA