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Thesis Type: Ph.D ×

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Now showing 1 - 9 of 1054
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    ThesisItemOpen Access
    EVALUATION AND CHARACTERIZATION OF RHIZOSPHERIC MICRO-ORGANISMS ASSOCIATED WITH WILD XEROPHYTIC PLANTS ON SORGHUM
    (MPKV, Rahuri, 2023) Barge Monika Suresh; Narute, T.K.
    Laboratory studies were conducted at the Department of Plant Pathology and Agricultural Microbiology, Post Graduate Institute MPKV, Rahuri. Moreover, a field experiment was also conducted during Rabi 2021-22 and 2022-23 at the Department of Plant Pathology and Agricultural Microbiology, Post Graduate Institute MPKV, Rahuri on sorghum crop in Randomized Block Design with 7 treatments and 4 replications. Total 125 soil samples were collected during August 2021 to October 2021 from rhizospheric soils of xerophytic plants such as Ber (Ziziphus mauritiana), Alovera (Aloe barbadensis), Cactus (Cactus spp.), Opuntia (Opuntia ficus) and Agave (Agave americana) etc. from different villages of five districts of Maharashtra State viz., Kolhapur, Sangli, Satara, Pune and Ahmednagar in accordance with GPS location. Azotobacter were isolated on Jensen’s Agar Medium and Phosphate solubilizing bacteria were isolated on Pikovskaya’s Medium. These isolates were used for seed inoculation of sorghum a drought tolerant crop for which absolute no irrigation was given. These isolates were further characterized and identified upto species of microorganisms on the basis of morphological, biochemical, cultural, physiological characterization and Gram reaction
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    ThesisItemOpen Access
    STUDIES ON BASAL ROT OF ONION (Allium cepa L.)
    (MPKV, Rahuri, 2024) Thakare Sirisha Vijayrao; Kolase, S.V.
    Onion (Allium cepa L., 2n = 2x =16) a member belongs to family Amaryllidaceae is known as common onion or bulb onion. It is the second most widely cultivated vegetable worldwide following tomato. Onion production is low due to many biotic and abiotic constraints; biotic factors include pathogens attack which results in diseases like anthracnose-twister, downy mildew, purple blotch, stemphylium blight and insect pest like thrips and nematode i.e. Ditylenchus dipsaci, while abiotic influences include temperature, drought, rainfall and other environmental conditions. Basal rot of onion caused by soil-borne fungal pathogen Fusarium oxysporum f. sp. cepae produces mycelium as well as three types of asexual spores viz., microconidia, macroconidia and chlamydospores. This disease significantly reduces yields in all regions of the world where onions are grown and causes significant production losses both in the field and during storage. The current investigation was carried out with a focus on epidemiology and management of basal rot disease of onion.
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    ThesisItemOpen Access
    CHARACTERIZATION STUDIES AND ECO-FRIENDLY MANAGEMENT OF CUCUMBER MOSAIC VIRUS DISEASE OF BANANA (Musa spp.)
    (MPKV, Rahuri, 2024) Joshi Mukta Uddhav; Narute, T.K.
    The efficiency of transmission of 3 aphids species viz., A. gossypii and A. crassivora and banana aphid Pentalonia nigronervosa was evaluated under insect transmission studies. The result of insect transmission studies revealed that among 3 species of aphids the A. gossypii transmitted CMV most efficiently (60%) as compared to A. crassivora whereas Pentalonia nigronervosa failed to transmit the CMV disease in given period of time, revealed that banana aphid could not play role as vector of cucumber mosaic virus of banana. In vivo evaluation of eco-friendly management practices under field trial was carried out and data obtained on observations revealed that, the defense activator Chitosan T6 (Chitosan 0.1%) was found most effective with maximum percent disease control over control and also reduced severity and vector population. It was then followed by T7 (Oxydemeton methyl 0.02%) during both the years of investigation. Thus, the final output of present study proved that, the Chitosan (0.1%) was found best eco-friendly alternative option for chemical measure to reduce the severity and incidence of CMV of banana
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    ThesisItemOpen Access
    MULTI-TRAIT SELECTION INDICES IN GIR CROSSES
    (MPKV, Rahuri, 2023) Antre Gorakshanath Raosaheb; Mandakmale, S.D.
    The data on reproduction and production traits of Gir crosses maintained at RCDP on cattle, MPKV, Rahuri (Maharashtra) were collected and analyzed by leastsquares technique (Harvey,1990) to estimate the effect of period of birth/calving, season of birth/calving, peak milk yield, genetic group and sire. The correlations, heritability and selection indices among the various traits were also studied. The overall least-squares means of AFC in IH, PT, JG and F group were estimated as 1067.95 ± 13.23, 1023.25 ± 10.14, 968.46 ± 39.51 and 1148.53 ± 24.39 days, respectively. The overall least-squares means for first service period in IH, PT, JG and F were 172.94 ± 10.35, 198.38 ± 9.83, 136.64 ± 20.51 and 281.31 ± 58.10 days, respectively. The overall means for FCI were 452.08 ± 10.35, 477.52 ± 09.82, 415.67 ± 20.51 and 560.50 ± 58.07 days in IH, PT, JG and F, respectively.
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    ThesisItemOpen Access
    SUSTAINABLE RESOURCE MANAGEMENT FOR CLIMATE SMART INTEGRATED FARMING SYSTEM
    (MPKV, Rahuri, 2022) Kharche Priyanka Pramod; Surve, U.S.
    The present investigation entitled, “Sustainable resource management for climate smart integrated farming system” was carried out during 2018-2019 to 2019-2020 at All India Co-ordinated Research Project on Integrated Farming Systems, Mahatma Phule Krishi Vidyapeeth, Rahuri, District Ahmednagar, Maharashtra. The integrated farming system was planned for 1.00 ha area and consisted of crop component, horticulture component, livestock component (dairy, goat, poultry) and vermicompost. Seven integrated farming systems were formulated by using suitable combinations of different components in the farming system. The integrated farming systems were as follows, T1: Crop + Horticulture + Dairy + Vermicompost, T2: Crop + Horticulture + Goat+ Vermicompost, T3: Crop + Horticulture + Poultry + Vermicompost, T4: Crop + Horticulture + Dairy + Goat + Vermicompost, T5: Crop + Horticulture + Dairy + Poultry + Vermicompost, T6: Crop + Horticulture + Goat + Poultry + Vermicompost and T7: Crop + Horticulture + Dairy + Goat + Poultry + Vermicompost, respectively. The productivity of each component was worked out on the basis of sugarcane equivalent yield. The maximum SEY (125 t ha-1) was calculated in poultry component of integrated farming system. It was followed by crop component having SEY 86 t ha-1. The combination of the entire components (crop, horticulture, dairy, goat, poultry and vermicompost) i.e. treatment T7: Crop + Horticulture + Dairy + Goat + Poultry + Vermicompost gave the higher sugarcane equivalent yield (375 SEY t ha-1).
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    ThesisItemOpen Access
    Studies on Geomorphological instantaneous unit Hydrograph.
    (MPKV, Rahuri, 2016) Pandit Devdata Vinayak; Atre, A.A.
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    ThesisItemOpen Access
    STANDARDIZATION OF HERBS AND BIOPRESERVATIVE ADDED QUARG TYPE CHEESE
    (MPKV, Rahuri, 2023) Shinde Santosh Pralhad; Kankhare, D.H.
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    ThesisItemOpen Access
    "Studies on cytoplasmic diversification in sorghum (Sorghum bicolor (L.) Moench)" on biometrical and biochemical aspects "
    (MPKV,Rahuri, 2000) SHASHIKANT B. CHAUDHARY; Dr. B.N. Narkhede
    The investigation was undettaken during the period from 1995-1998 at Rahuri to study cytoplasmic diversification in sorghum on biometrical and biochemical aspects and heterosis and combining ability based on milo cytoplasm in two seasons rabi -1996 and rabi -1997 in respect of five characters for Expt. I and eight characters for Expt.2. In diverse cytoplasm fertility restoration pattern was studied. Known restorers of SPY 655 and SPY 1047 of 104A (milo) cytoplasm restored the full fertility on ms 840A2. However, the known restorers SPY 503 and IS 84 of ms 840A2 cytoplasm restored fertility on I 04A and msCS 3541 (Mal.), but were found to be maintainer of SP A3-4A cytoplasm. Two known restorer SP 14197 and SP 14189 of SPA3-4A and restorer of GD-23436-1 ofmsCS 3541 (Mal.)
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    ThesisItemOpen Access
    PHYSIOLOGICAL AND BIOCHEMICAL BASIS OF DIFFERENTIAL RESPONSES OF CHICKPEA (Cicerarietinum L.) TO VARYING THERMAL AND SOIL MOISTURE REGIMES
    (MPKV,Rahuri, 2019) Bankar Pankaj Balasaheb; Dr. R. W. BHARUD
    An experiment was conducted to study "Physiological and biochemical basis of differential responses of chickpea (Cicer arietinum L.) to varying thermal and soil moisture regimes" during rabi 2014-15 and rabi 2015-16 in the Phytotron facility at the Department of Agricultural Botany, Post Graduate Institute and Rainout shelter of Pulses Improvement Project, M.P.K.V., Rahuri, Dist. Ahmednagar (MS) India. In this study four different experiments were carried out. First three experiments were laid out in Factorial Completely Randomized Design (FCRD) with two replications involving twenty chickpea genotypes and five temperature regimes viz; 15/15°C, 20/20°C, 25/15°C, 25/20°C, 25/25°C for first two experiments, which were conducted in growth chambers and two temperature regimes viz: 20/ l5°C and 25/20°C for third experiment was conducted in automated polyhouses. In the fourth experiment, four genotypes (2 heat tolerant and 2 heat susceptible) were selected on the basis of investigations from the first three experiments and screened for conducting fie ld experiment for drought and heat studies. The experiment was conducted in Split-split plot design with three replications under non-stress and various moisture stress conditions on medium black soil under rainout shelter condition with three sowing dates i.e. Early, Normal and Late sowing.