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Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur

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2013 - 201424
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Subject: Plant Breeding and Genetics × End date: 2014 × Start date: 2013 ×
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Now showing 1 - 9 of 24
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    ThesisItemOpen Access
    Evaluation of Drought Tolerant Rice (Oryza sativa L.) NILs
    (JNKVV, 2013) Singh, Devendra; Perraju, P.
    ABSTRACT The present investigation entitled “Evaluation of drought tolerant rice (Oryza sativa L.) NILs.” was carried out with the objectives to estimate mean, range, heritability (%), genetic advance (%), correlation coefficients, Drought Susceptibility Index and stability for morphological traits. The experimental material consisted of 12 genotypes and conducted at Experimental farm of College of Agriculture, Rewa (M.P.) under AVT-1 NILs DRT-2012 project with these genotypes in three environments viz., controlled, rainfed and reproductive stage stress condition during Kharif 2012. Observations were recorded on the basis of five random competitive plants selected from each drought tolerance genotypes in every replication for morphological traits e.g. plant height (cm), panicle length (cm), no. of tillers/hill, days to fifty percent flowering, biological yield/meter (g), no. of panicles/meter, panicle weight/meter, harvest index (%), grain yield/hactare (g), 1000 grains weight (g), and sterility percent (%) were evaluated as per standard procedure. The salient findings of the study and conclusion drawn as summarized below: The mean data estimated were subjected to analysis of variance as per the Randomized Block Design. Analysis of data revealed highly significant difference among genotypes for all traits in all three environments. The coefficients of phenotypic and genotypic variability were high for grain yield and sterility percent (All Env.) and the coefficients of phenotypic and genotypic variability were moderate for panicles weight per meter, biological yield per meter and harvest index (All Env.). High heritability accompanied with high genetic advance indicated predominance of additive gene action for the traits viz., plant height (E2,E3), Biological yield per meter (E1,E3), yield per hactare (E2,E3) and sterility percent (E2,E3). Selections can be effective on the basis of correlation for characters like panicle length, days to fifty percent flowering, tillers/ hill, no. of panicles per meter, panicles weight per meter, and harvest index in all environments. These characters should be considered during selection for developing high yielding stable breeding lines. In the present investigation genotype x environmental interactions of stability analysis was significant for no. of tillers per hilll, biological yield, grain yield, 1000 grains weight and sterility percent when tested against pooled error. However, analysis of variance for stability revealed significance of variance due to environment (linear) for all the above characters and G x E (linear) was significant for no. of tillers per hilll, biological yield, grain yield, 1000 grains weight and sterility percent. Pooled deviations was found to be significant for plant height panicle length, no. of tillers per hilll, days to fifty percent flowering and harvest index. The favourable environment for most of the traits is observed in control condition (E1) followed by rainfed (E2) and reproductive stress condition (E3) based on bi and s2di value. Maximum number of genotypes revealed greater stability in all the environments for panicle length, tillers per hill, biological yield, panicles per meter, panicles weight per meter, harvest index, grain yield, 1000 grains weight and sterility percent. Genotypes, IR 87705-14-11-B and IR 87707-118-B-B-B for plant height, IR 87705-14-11-B for panicle length, IR 87705-83-12-B and IR-64 for no. of tillers per hill, IR 87707-446-B-B-B, IR 87707-445-B-B-B and IR 87705-44-4-B for 1000 grains weight, were found to be stable in all three environments. For grain yield, genotype IR 87705-14-11-B was found stable in all three environments. For the plant height genotypes IR 87707-446-B-B-B and Shanti, for panicle length IR 87729-69-B-B-B and IR 87707-445-B-B-B, for no. of tillers per hill IR 87729-69-B-B-B and IR 87728-102-B-B, for grain yield IR 87707-446-B-B-B and IR 87707-445-B-B-B, and for 1000 grains weight IR 87707-182-B-B-B and IR 87705-14-11-B were to be recommonded for unfavourable environments. Among those tested genotypes IR 87728-102-B-B and IR 87705-83-12-B for plant height, IR 87705-44-4-B for panicle length, IR 87705-44-4-B and IR 87707-445-B-B-B for no. of tillers per hill, IR 87729-69-B-B-B for no. of panicles per meter, IR 87728-102-B-B and IR 87729-69-B-B-B for grain yield and IR 87728-102-B-B and IR 87705-83-12-B for 1000 grains weight, were suitable for favourale environments. For grain yield under rainfed condition genotypes Shanti, IR-64, IR 87705-14-11-B, IR 87707-446-B-B-B and IR 87707-445-B-B-B were more responsive. Similarly for grain yield in reproductive stage stress condition genotypes IR 87707-118-B-B-B, IR-64, IR 87707-182-B-B-B, IR 87707-445-B-B-B and IR 87707-446-B-B-B were more responsive with low DSI value for yield. ***
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    Evaluation of Drought Tolerant Lines of Rice (Oryza sativa L.) Obtained Through MAS under Rainfed and Control Condition
    (JNKVV, 2013) Prajapati, Indrapal; Perraju, P.
    ABSTRACT The present investigation entitled “Evaluation of drought tolerant lines of rice (Oryza sativa L.) obtained through MAS under rainfed and condition” was carried out with the objectives to estimate genetic parameters of variability, heritability, genetic advance for morphological traits. The character association to identify the stable genotype by stability analysis among ninety one drought tolerance genotypes conducted in the three environments viz. control condition, ranfed condition and reproductive stress condition were studied. The experiment was conducted at College of Agriculture, Rewa under Rice Improvement Project with these genotypes in randomized block design with two replications during Kharif 2012-13. Observations were recorded on the basis of five random competitive plants selected from each drought tolerance genotypes in every replication for morphological traits e.g. days to fifty percent flowering, plant height (cm), panicle length (cm), tiller/hill, biological yield /meter (g), panicle weight /meter, no. of panicles /meter, grain weight /meter, grain yield /plot (g), harvest index (%) and thousands grain weight (g), were evaluated as per standard procedure. The mean data estimated were subjected to analysis of variance as per the Randomized Block Design. Analysis of data revealed highly significant difference among genotypes for all traits in all environments. The coefficients of phenotypic and genotypic variability were high for panicle weight per meter,(g) no. of panicles meter-1, grain weight per meter(g), grain yield per plot (g), harvest index (%), (All Env.), and the coefficients of phenotypic and genotypic variability were moderate for plant height(cm) and biological yield per plot(g) (All Env.). The estimate of genetic advance as percentage of mean at five per cent selection intensity recorded were high for corrector, plant height(g), panicle weight per meter(g), no. of panicles meter-1, grain weight per meter(g), grain yield per plot (g), harvest index (%), (All Env.), biological yield per meter(g) (E1). High heritability accompanied with high genetic advance indicated predominance of additive gene action for the traits viz., plant height, no. of panicle per meter, panicle weight per meter, grain weight per meter, grain yield per plot, harvest index (All Env.), biological yield per plot (E1, E2). The characters like plant height, panicle length, days to fifty percent flowering, thousands grain weight, harvest index should be considered during selection for developing high yielding stable breeding lines. The favourable environment for most of the economic traits is observed to be control condition (E1) followed by rainfed condition(E2), reproductive stress condition (E3) based on bi and s2di maximum number of genotypes revealed greater stability to all the environments for panicle length, thousands grain weight, harvest index, days to fifty percent flowering and plant height also other traits. In the present investigation genotype x environmental interactions of stability analysis was significant for grain yield per plot, biological yield per plot plant height when tested against pooled error. However, analysis of variance for stability revealed significance of variance due to environment (linear) for all the above characters and G x E (linear) was significant for plant height, thousands grain weight, grain yield per plot, harvest index. Pooled deviations were also found to be significant for all the eleven characters. The genotypes IR86991-B-192-B for days to 50% flowering, IR86918-B-124-B, IR86991-B-108-B for plant height, IR86918-B-319-B for biological yield per meter and IR86929-B-244-B for grain yield per meter were found to be stable. The genotypes IR86918-B-117-B, IR869992-B-216-B, IR86931-B-148-B, IR86931-B-332-B, IR86918-B-17-B, IR86929-B-262-B, IR86931-B-522-B, IR86918-B-124-B, IR86929-B-262-B, IR86931-B-91-B, IR86929-B-108-B, IR86918-B-45-B, IR86929-B-456-B and IR86918-B-90-B were suitable for unfavourable environments for the character days to 50% flowering, tillers per hill, biological yield per meter, grain weight per meter, grain yield per plot, harvest index and test weight respectively. The breeding lines IR86918-B-239-B, IR86929-B-178-B, IR86929-B-183-B, IR86929-B-482-B, IR86929-B-392-B, IR86929-B-326-B, IR86931-B-186-B, IR86931-B-273-B, IR86931-B-528-B, IR86931-B-273-B, APO, IR86931-B-30-B and IR86931-B-91-B were found to be suitable for favourable environments for the character plant height, panicles length, tillers per hill, biological yield per meter, panicles weight per meter, grain weight per meter, grain yield per plot, harvest index and test weight respectively. ***
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    ThesisItemOpen Access
    Characterization of CMS and Restorer Lines of Rice (Oryza sativa L.)
    (JNKVV, 2013) Tiwari, Priyanka; Mishra, D.K.
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    Genetic Diversity Studies Based on Seedling and Physiological Traits in Promising Lines of Soybean
    (JNKVV, 2013) Yadav, Umashankar Singh; Shrivastava, A.N.
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    ThesisItemOpen Access
    Characterization of Advanced Breeding Lines of Chickpea Under High Temperature Condition Through Morphological and Molecular Markers
    (JNKVV, 2013) Kuldeep, Rajkumar; Pandey, Suneeta
    ABSTRACT Present investigation entitled “Characterization of advanced breeding lines of chickpea under high temperature condition through morphological and molecular markers” was aimed at identification of phenological and morpholological traits influencing seed yield. The experimental material consisted of 100 genotypes grown in randomized complete block design in the All India Co-ordinated Research Project on Chickpea at Seed Breeding Farm, Department of Plant Breeding and Genetics, JNKVV, Jabalpur during Rabi 2012-13. Observations were recorded on eight visual characters and thirteen yield attributing characters for characterization of genotypes. High heritability coupled with high genetic advance as percentage of mean were recorded for 100- seed weight, seed yield per plant, number of effective pods per plant, harvest index and total number of pods per plant. The correlation and path coefficient analysis revealed that the traits days to 50% flowering, seeds per pod, number of effective pods per plant, 100-seed weight, number of primary branches and days to maturity showed positive and significant correlation with seed yield per plant as well as direct effect on seed yield. Thus, these traits might be considered for selecting the high yielding genotypes suitable for late planting. On the basis of D2, 100 genotypes were grouped into 16 clusters. Maximum number of genotypes were recorded in cluster I, followed by cluster II, cluster V and cluster VI, whereas, cluster IV, cluster VII, cluster VIII, cluster IX, cluster X, cluster XI and cluster XII, cluster XIII, cluster XIV , cluster XV and cluster XVI had only one genotype in each. On the basis of inter-cluster distances, high inter cluster divergence was observed between cluster IX and cluster XV, followed by cluster X and XV, cluster VII and XV, cluster VIII and XV and cluster XI and XV. On the basis of phenological and yield attributing traits, genotypes ICCV 93014, ICCV 96317, ICCV 01302 and ICCV 063301 were found superior. Theses promising lines can be used as donor for earliness and improvement in yield in hybridization programme. For estimating genetic diversity at molecular level, eleven SSR markers were generated using dendrogram by neighbor-joining method implemented in Power Marker version 3.25. All the genotypes were grouped into three major groups (clusters). First major group consisted four genotypes (ICCV 93025, ICCV 93024, ICCV 03401 and ICCV 95315), second major group consisted 2 genotypes (ICCV 03405 and ICCV 01306). Maximum numbers of genotype i.e. 94 are present in third group. These major groups were further subdivided into several sub groups. Present study revealed that the 100 genotypes that are morphologically very much distinct, but at molecular level they are very similar to each other. Some of the genotypes i.e., ICCV 01306 and ICCV 03405 are closely related to each other at both levels. Genotypes ICCV 95315, ICCV 93024 and ICCV 93025 are distinct from each other at both level, hence they might be further used in hybridization programme for generation of superior segregants for heat tolerance.
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    ThesisItemOpen Access
    Genetic Studies of Elite Bread Wheat Lines for Yield and Its Components
    (JNKVV, 2013) Shivhare, Jeetendra; Moitra, P.K.
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    ThesisItemOpen Access
    Genetics Studies of Recombinant Inbred Lines Derived From JNPT 101*25B for Yield and Quality Attributes in Rice (Oryza sativa L.)
    (JNKVV, 2013) Vanshkar, Preeti; Rao, S.K.
    ABSTRACT he present investigation entitled “Genetics of RECOMBINANT INBRED LINES derived from JNPT 101 X 25 B for yield and quality attributes in Rice (Oryza sativa L.) carried out on recombinant inbred lines at Seed Breeding Farm of J.N.K.V.V, Jabalpur with these genotypes in Randomized Complete Block Design with three replications during Kharif 2011-12. Observations were recorded on the basis of ten random competitive plants selected from each RILs in every replication for morphological traits e.g. days to fifty percent flowering, days to maturity, number of leaves, number of tillers per plant, number of productive tillers plant-1, plant height, inter nodal distance, flag leaf width, panicle length, panicle weight, average panicle weight, number of spikelets, number of filled spikelets, number of unfilled spikelets, spikelet fertility %,spikelet sterility %,1000 grain weight, grain yield plant-1, biological yield plant-1 , panicle index, harvest index, grain length, grain breadth, length breadth ratio, hulling%, milling % and head rice recovery %. were evaluated as per standard procedure. The mean data estimated were subjected to analysis of variance as per the Randomized Block Design. Analysis of data revealed highly significant difference among genotypes for all traits. GCV and PCV were comparatively high for spikelet sterility % followed by number of unfilled spikelets, number of filled spikelets, number of spikelets, average panicle weight, biological yield plant-1, panicle weight, grain yield plant-1, number of productive tillers plant-1, number of tillers plant-1, 1000 grain weight, flag leaf length, harvest index%, seed width, leaf width, head rice recovery %, milling %, number of leaves, grain breadth ratio, hulling %, flag leaf width , days to fifty percent flowering, while, moderate variation were observed for days to maturity, plant height, inter nodal distance, panicle length, panicle index, grain length, whereas, low genotypic and phenotypic coefficient of variations was observed for spikelet fertility %. Heritability in broad sense estimates revealed were highest for days to maturity followed by very high estimate, 1000 grain weight, inter nodal distance, milling%, hulling%, head rice recovery %, grain breadth ratio, number of leaves, spikelet fertility%, number of productive tillers and days to fifty percent flowering. The estimates of heritability were moderate for number of tillers, length breadth ratio. Low heritability was recorded for harvest index, panicle length, spikelet sterility %, biological yield plant-1, panicle index, grain yield plant-1, plant height, number of spikelets, average panicle weight. The estimate of genetic advance as percentage of mean at five percent selection intensity was highest for number of unfilled spikelets followed by number of filled spikelets, biological yield plant-1, spikelet sterility %,average panicle weight, number of spikelets, harvest index%, panicle weight, while, moderate genetic advance was estimated for grain yield plant-1, number of productive tillers plant-1, 1000 grain weight, head rice recovery%, milling %, hulling %, and flag leaf width, However, low genetic advance as percentage of mean was estimated for length breadth ratio. High heritability accompanied by high genetic advance indicated the predominance of additive gene action for the traits number of leaves, number of productive tillers, number of unfilled spikelets, 1000 grain weight, milling %, hulling % and head rice recovery %. Selection can be effective on the basis of correlation and path analysis for the characters viz., number of productive tillers, 1000 grain weight, milling%, spikelet fertility %, grain length, biological yield plant-1, panicle weight, average panicle weight, number of spikelet, number of filled spikelet and number of tillers. With respect to findings of the present investigation, recombinant inbred lines viz., 54, 51, 33, 36, 21 were identified as superior lines with respect to morphological and grain quality traits.