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Subject: Plant Physiology ×

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Now showing 1 - 9 of 65
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    ThesisItemOpen Access
    "SOURCE SINK RELATIONSHIP IN COTTON Gossypium hirsutum L."
    (MPKV,Rahuri, 2009) WAKADE RAOSAHEB SHRIKRISHNA; Dr. S.R. More
    A field experiment entitled "Source sink relationship in Cotton Gossypium hirsutum L." was carried out at Cotton Improvement Project, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar (M.S.) during Kharif 2008. The experiment was laid out in a randomized block design (RBD) with three replications and fourteen genotypes viz., LRA-5166, JLH-168, RHC-0688, Surabhi, Richmondi, Okra leaf, PLI-8, RHBB-9718, RHC-006, M-12, RHC-054, PHC-011, Bunny, NHH-44.The observations on various growth and yield attributes such as plant height, leaf area, number of monopodia and sympodia branches per plant, number of leaves, dry matter of leaves, stem, roots, reproductive parts, seed cotton yield per plant, ginning percentage, total biomass and harvest index were recorded periodically. Significant differences were observed amongst the genotypes for mean values of plant height, sympodial branches per plant, dry matter of leaves, stem, roots, reproductive parts, yield and yield contributing characters. Number of bolls per plant, more number of sympodia, dry matter accumulation in leaves and bolls were appeared to be the most important yield contributing characters responsible for higher seed cotton yield. The physiological basis for differences in seed cotton yield amongst the high yielding and low yielding genotypes was mainly due to the variation in magnitude of the morphological and physiological characters along with yield contributing characters. Higher seed cotton yield produced by high yielding genotypes was mainly due to higher dry matter production and its effective translocation from source to sink and also higher values for combination of yield contributing characters. On the other hand, low yielding genotypes showed lower mean values for plant height, leaf area, dry matter production and also combination of yield contributing factors. In light of above,
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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.
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    ThesisItemOpen Access
    "ASSESSMENT OF MORPHO-PHYSIOLOGICAL TRAITS OF POST RAINY SORGHUM GENOTYPES UNDER DEPLETING SOIL MOISTURE ON MEDIUM SOIL CONDITION"
    (MPKV,Rahuri, 2019) KHAIRNAR AJAY SHIVAJI; Dr. A.G. BHOITE
    The present investigation entitled, "Assessment of morpho-physiological traits of post rainy sorghum genotypes under depleting soil moisture on medium soil condition" was undertaken during rabi season 2018-19 under rainout shelter to identify key morpho-physiological traits and donors/sources for drought tolerance on medium type of soil. An experiment was laid out in a RBD with two replications during rabi 2018-19 on medium soil. The sixteen rabi genotypes were used. The soil moisture status was monitored during the crop growth at 0-30, 30-60 and 60-90 em depth under rainout shelter. Tbe observations on morphological traits, phenological stages, physiological parameters (RLWC, CSI, stomatal frequency, leaftemperature depletion, photosynthesis, transpiration, stomatal conductance, PAR), Proline content and dry matter production were recorded during crop growth period . Heat units and heat unit efficiency were computed for grain and dry matter as per the standard formulae. The data on grain yield and its attributing characters were recorded at harvest. The statistic analysis and correlation of morpho-physiological traits with grain yield were analyzed by statistic methods. The genotypes RS V 20 I I, RS V 2249 and RS V 1850 were observed to be prom ising genotypes for key morpho-physiological traits under rainout shelter for medium soil.
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    ThesisItemOpen Access
    "PHYSIOLOGICAL ASSESSMENT OF RABI SORGHUM GENOTYPES UNDER DEPLETING SOIL MOISTURE ON MEDIUM SOIL"
    (MPKV,Rahuri, 2019) DEVARE Y ASHW ANT MUNJAJI; Dr. M.S. SHINDE
    The present investigation entitled, "Physiological assessment of rabi sorghum genotypes under depleting soil moisture on medium soil" was undertaken during rabi season 2017-18 under rainout shelter to identify key morpho- physiological traits and donors/sources for drought tolerance for medium type of soil. An experiment was laid out in a RBD with two replications during rabi 2017-18 on medium soil . The sixteen rabi sorghum genotypes were used. The soil moisture status were monitored during the crop growth at 0-30, 30-60 and 60-90 em depth under rainout shelter. The observations on morphological traits, phenological stages, physiological parameters (RL WC, CSI, stomatal frequency, leaf temperature depletion, photosynthesis, transpiration, stomatal conductance, PAR), Proline content and dry matter production were recorded during crop growth period. Heat units and heat unit efficiency were computed for grain and dry matter as per the standard formulae. The data on grain yield and it's attributing characters were recorded at harvest. The statistical analysis and correlation of morpho-physiological traits with grain yield were analysed by statistical methods. The soil moisture status revealed that, the moisture decreased from sowing till the harvest of the crop. The moisture was more at deeper depth (60-90 em) under the receding soil moisture condition at physiological maturity.
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    ThesisItemOpen Access
    ASSOCIATION OF ROOT TRAITS AND PHYSIO-BIOCHEMICAL PARAMETERS OF RABI SORGHUM WITH DROUGHT CONDITION
    (MPKV,Rahuri, 2019) Sawant Prakash Popat; Dr. S. R. Gadakh
    An experiment was conducted to study "Association of root traits and physio-biochemical parameters of rabi sorghum with drought condition" was carried out at All India Co-ordinated Sorghum Research Project, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar (MS), India during the year 2015-2016. This study was carried out in three different experiments viz., laboratory, rainout shelter and root box structure. The first experiment was laid out in completely randomized design with two replications involving thirteen rabi sorghum genotypes and eight PEG concentrations (0, -0.1, -0.2, -0.4 -0.6. -0.8, -1.0 and -1 .2 MPa) at State Level Biotechnological Centre, MPKV, Rahuri during 2015-16. The germination per cent, seedling vigour, promptness index and germination stress index were recorded on 2"ct, 4th, 6th and gth day and the shoot, root and seedling length dry weight as well as biochemical parameters like proline content, glycine betai ne content, SOD and CAT activities were recorded on gth day. The data revealed
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    ThesisItemOpen Access
    "ASSESSMENT OF GENETIC VARIABILITY OF WHEAT FOR EARLY ESTABLISHMENT UNDER MOISTURE STRESS CONDITION BY USING PEG."
    (MPKV,Rahuri, 2019) VITNOR SUSHIL SARJERAO; Dr. R. S. Wagh
    An experiment was conducted to study "Assessment of genetic variability of wheat for early establishment under moisture stress condition by using PEG" was carried out at P.G.I. Farm, Department of Agricultural, Botany, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahrnednagar (MS) India during the year 2015-2017. This study was carried out in three different experiments. The first experiment was laid out in factorial completely randomized design with three replications involving fourteen wheat genotypes and five PEG concentrations (0, -0.1 , -0.3, -0.5 and -0.7 MPa) at phytotron, Department of Agril. Botany, M.P.K.V., Rahuri. The germination per cent, seedling vigour, promptness index and germination stress index were recorded on 2"ct, 41 \ 6th and gth day and the shoot, root and seedling length as well as dry weight were recorded on gth day. The data revealed significant genetic variation for moisture stress tolerance existed in tested wheat genotypes. The
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    ThesisItemOpen Access
    PHYSIOLOGICAL AND BIOCHEMICAL BASIS OF DIFFERENTIAL RESPONSES OF WHEAT (Triticum aestivum L.) TO VARYING THERMAL AND SOIL MOISTURE REGIMES
    (MPKV,Rahuri, 2019) PAWAL SAKHARAM NIVRUTTI; Dr. R. S. Wagh
    An experiment was conducted to study "Physiological and biochemical basis of differential responses of wheat (Triticum aestivum L.) to varying thermal and soil moisture regimes" ·during rabi 2014-15 and rabi 2015-16 at Phytotron facility at Department of Agricultural Botany, Post Graduate Institute and Rainout shelter of PGI Field, M.P.K.V., Rahuri, Dist. Ahrnednagar (MS) India. This study was carried out in four different experiments. First three experiments were laid out in Factorial Completely Randomized Design (FCRD) with two replications involving twenty five wheat genotypes and five temperature regimes viz; 15/15°C, 20/20°C, 25/l5°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 which was conducted in automated polyhouse. 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 field experiments 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 conditions under three sowing dates i.e.Early, Normal and Late sowing.
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    ThesisItemOpen Access
    "EFFECT OF FOLIAR APPLICATION OF GROWTH REGULATORS ON MORPHOPHYSIOLOGICAL PARAMETERS AND YIELD OF SOYBEAN VARIETY PHULE SANGAM."
    (MPKV,Rahuri, 2019) SURASHE AMOL DNY ANESHEAR
    A field trial entitled "Effect of foliar Application of growth regulators on morphophysiological parameters and yield of soybean variety Phule Sangam" was conducted at Post Graduate Institute Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar during kharif(2018). The experiment was laid out in a randomised block design (RBD) with three replications and sevan treatments involving variety Phule Sangam (KDS-726) and the plant growth regulators viz., NAA @ 25 ppm(Tl), NAA @ 50 ppm(T2), Putrescine @ 25 ppm(T3), Putrescine @ 50 ppm(T4), Putrescine @ 75 ppm(T5) and Water Spray (T6), Absolute Control (T7). Plant growth and developmental processes are very much regulated by certain chemical substances called growth regulators. Plant growth regulators are known to improve the physiological efficiency including photosynthetic ability and can enhance the effective partitioning of accumulates from source and sink in the field crops. The present study was conceptualized and executed with the prime objective of study the effect of Putrescine and NAA on morphological, physiological, biochemical & yield contributing parameters of soybean. The foliar sprays of PGRs were given at two times on the stage of (a) flower initiation (38-40 DAS) (b) pod initiation (55- 60 DAS).
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    ThesisItemOpen Access
    "MORPHOLOGICAL AND PHYSIOLOGICAL EV ALUTION OF COWPEA GENOTYPES FOR SALT STRESS (Vigna unguiculata L.)"
    (MPKV,Rahuri, 2019) Kale Amol Ramdas; Dr.S.I.Tambe
    The investigation on "Morphological and physiological evaluation of cowpea genotypes for salt stress( Vigna unguiculata L.)," was conducted at Phytotron facility, M.P.K.V. , Rahuri, Dist. Ahmednagar (Maharashtra) during kharif, 2017-18. The experiment was laid out in a Factorial Completly Randomized Block Design with two replications involving ten cowpea genotypes. The data on various morpho-physiological parameters were recorded periodically, while ion content in leaves, yield and yield contributing characters were recorded at harvest. The data was analysed statistically by Factorial Completely Randomized Block Design (FCRD). Significant differences were observed in respect of all the parameters recorded in ten cowpea genotypes at different salt stress regimes. Morpho-physiological parameters like days to initiation of flowering, 50 per cent flowering and physiological maturity, photosynthetic rate, stomatal conductance, transpiration rate, total chlorophyll content, relative leaf water content, plant height, number of branches per