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Dr. Rajendra Prasad Central Agricultural University, Pusa

In the imperial Gazetteer of India 1878, Pusa was recorded as a government estate of about 1350 acres in Darbhanba. It was acquired by East India Company for running a stud farm to supply better breed of horses mainly for the army. Frequent incidence of glanders disease (swelling of glands), mostly affecting the valuable imported bloodstock made the civil veterinary department to shift the entire stock out of Pusa. A British tobacco concern Beg Sutherland & co. got the estate on lease but it also left in 1897 abandoning the government estate of Pusa. Lord Mayo, The Viceroy and Governor General, had been repeatedly trying to get through his proposal for setting up a directorate general of Agriculture that would take care of the soil and its productivity, formulate newer techniques of cultivation, improve the quality of seeds and livestock and also arrange for imparting agricultural education. The government of India had invited a British expert. Dr. J. A. Voelcker who had submitted as report on the development of Indian agriculture. As a follow-up action, three experts in different fields were appointed for the first time during 1885 to 1895 namely, agricultural chemist (Dr. J. W. Leafer), cryptogamic botanist (Dr. R. A. Butler) and entomologist (Dr. H. Maxwell Lefroy) with headquarters at Dehradun (U.P.) in the forest Research Institute complex. Surprisingly, until now Pusa, which was destined to become the centre of agricultural revolution in the country, was lying as before an abandoned government estate. In 1898. Lord Curzon took over as the viceroy. A widely traveled person and an administrator, he salvaged out the earlier proposal and got London’s approval for the appointment of the inspector General of Agriculture to which the first incumbent Mr. J. Mollison (Dy. Director of Agriculture, Bombay) joined in 1901 with headquarters at Nagpur The then government of Bengal had mooted in 1902 a proposal to the centre for setting up a model cattle farm for improving the dilapidated condition of the livestock at Pusa estate where plenty of land, water and feed would be available, and with Mr. Mollison’s support this was accepted in principle. Around Pusa, there were many British planters and also an indigo research centre Dalsing Sarai (near Pusa). Mr. Mollison’s visits to this mini British kingdom and his strong recommendations. In favour of Pusa as the most ideal place for the Bengal government project obviously caught the attention for the viceroy.

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1995 - 199952010 - 201829
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Subject: Genetics and Plant Breeding × End date: 2020 × Type: Thesis ×
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Now showing 1 - 9 of 34
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    ThesisItemOpen Access
    Genetical and biochemical bases of salt tolerance in rice (Oryza sativa L.)
    (DRPCAU, Pusa, 1998) Singh, Ajay Kumar; Shahi, V.K.
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    ThesisItemOpen Access
    Cytotoxic effects of pollutants on Fish and Grasshopper
    (DRPCAU, Pusa, 1997) Bharti, Suman; Kumar, Mithilesh
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    Tissue culture induced biochemical and cytological variability in Pisum
    (DRPCAU, Pusa, 1995) Faruqi, O.R.; Shahi, V.K.
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    ThesisItemOpen Access
    Mutazenic effect of Sodium azide in rice (Oryza Saliva L.)
    (DRPCAU, Pusa, 1995) Singh, Amrendra Prasad; Chaudhary, V.K.
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    ThesisItemOpen Access
    Studies on divergence in sesame (Sesamum indicum L.)
    (Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, 2018) Kumar, Niraj; Singh, U. K.
    The investigation entitled “STUDIES ON DIVERGENCE IN SESAME (Sesamum indicum L.)” was carried out with 21 genotypes including a check namely Krishna. The genotypes were grown in randomised block design with three replications during kharif 2017 at research farm of Tirhut College of Agriculture, Dholi. Genotypes varied significantly for all the morpho-physiological characters. The mean values shifted bidirectionaly significantly as compared to better check, thus provided scope of selection. A close proximity between PCV and GCV indicated strong base of genetic component in phenotypic expression of all the characters under study. High heritability coupled with high genetic advance for characters plant height, productive capsules per plant, 1000 seed weight, harvest index and seed yield per plant suggested the preponderance of additive gene effects in the expression of these characters. High phenotypic and genotypic correlation coefficients of harvest index, productive capsules per plant, number of seeds per capsule, number of branches per plant, productive branches per plant, biological yield and 1000 seed weight were observed. Path analysis indicated maximum direct effect of number of branches per plant, biological yield and harvest index on seed yield indicating the importance of these traits in determining seed yield. Study of genetic divergence confirmed that there was no parallelism between geographical and genetic diversity. Thus genotypes were grouped into five different clusters on the basis of genetic diversity. In cluster III maximum number of genotypes were found. The maximum and minimum inter cluster distance were observed in between cluster V and II and in between cluster II and I, respectively. Hence, the genotypes of cluster V and II may be utilized for further crop improvement programme. The character productive capsules per plant exhibited maximum contribution towards divergence. The cluster V had maximum cluster mean performance for all the characters except days to 50 per cent flowering, productive branches per plant and days to maturity. On the basis of outstanding mean performance and maximum inter cluster distance, Krishna and Pragati were identified as potential elite parent.
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    ThesisItemOpen Access
    Variability assessment in Mutant Lines of Rice for Submergence Tolerance
    (Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, 2018) Kumari, Nikita; Kumar, Rajesh
    Present investigation was carried out with 240 mutant lines developed from different combination of gamma rays and ethyl methyl sulfonate on three rice varieties i.e FR13A, FR13B and labella along with three untreated checks (FR13A, FR13B and labella). These were evaluated for their survival percentage under submerged condition and yield potential along with 9 other morpho-physiological traits using Type 2 modified augmented design at the Chawania tank of Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, during Kharif season of 2017. The objective were to assess the relative performance, estimation of genetic variability, heritability, genetic advance as precent of mean and genetic divergence among the mutant lines for submergence tolerance and grain yield along with yield contributing traits. Data were collected for eleven morpho-physiological characters. Statistical analysis carried out were analysis of variance, genotypic and phenotypic coefficient of variation, heritability, genetic advance, correlation coefficient analysis, path analysis and genetic diversity. Analysis of variance revealed high significant differences among the mutant lines for all the eleven morpho-physiological characters under studied. The mutant lines FR13A (350GY+0.2%EMS)-entry number 1, Labella (200GY)-entry number 146 and Labella (200GY)-entry number 147 and FR13B (350Gy)-entry number 165 were significantly higher in mean value for maximum number of characters including grain yield and survival percentage. Higher magnitude of phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV), heritability (broad sense) and genetic advance as percent of mean were observed for number of tillers per plant, number of fertile tillers per plant, relative shoot elongation and survival percentage, indicating that these traits could be used as selection indices for yield improvement and submergence tolerance. Association analysis revealed that number of tillers per plant and survival percentage had significant positive association along with high to moderate direct effect on grain yield per plant indicating that these two traits have significant direct influence on grain yield per plant under submergence stress condition. Thus these traits may be used as selection criteria. All the 240 mutant lines along with three checks were grouped into 16 clusters using Mahalanobis D2 statistics. The maximum inter cluster distance was recorded between cluster IV and XVI (86.00) followed by cluster VIII and XVI (75.59), cluster VII and XVI (75.15) and cluster V and XVI (70.77) indicating that chances of getting recombinants with higher survival percentage and yield per plant is possible if the crosses are made among the mutant lines of these clusters. cluster XVI showed desirable mean value for most of the traits under study except plant height, total shoot elongation and leaf senescence indicating that the mutant lines FR13B (350GY)-entry number 167 and FR13B (350GY)-entry number 168 in cluster XVI can be used as one of the parent for improvement of characters like number of tillers per plant, number of fertile tillers per plant, relative shoot elongation, survival percentage. These traits also had high GCV, PCV, heritability and genetic advance as percent of mean. The maximum inter cluster distance was also recorded between cluster IV and XVI (86.00) followed by cluster VIII and XVI (75.59), cluster VII and XVI (75.15) and cluster V and XVI (70.77).Therefore, the selection of parents from different clusters might be done for desired traits on the basis of higher cluster mean values and distance between them. Survival percentage (38.26) followed by plant height (30.90) and days to 50% flowering (22.05) showed maximum relative contribution towards total divergence indicating the importance of these traits in selection of desirable mutant lines.
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    ThesisItemOpen Access
    Genetic Divergence and Cause Effect Analysis Under Drought Condition on Chickpea
    (Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, 2018) Kumar, Rupesh; Singh, Ajay Kumar
    The present investigation entitled “Divergence and cause effect analysis under drought condition on chickpea” was carried out by using forty one genotypes including check in RBD with two replication at rainout shelter farm of RPCAU Pusa Samastipur. Investigation on eighteen characters were done viz. days to 50% flowering, plant height, number of primary branch per plant, number of secondary branch per plant, number of pods per plant, number of seeds per pod, harvest index, yield per plant, number of nodules per plant, nodule weight per plant, nodule dry weight per plant, root length, root volume, root dry weight, peroxidase, catalase, protease and proline. The observations were recorded based on five randomly selected plants from each plot of the replication and standard recommended statistical procedures were used to estimate the genetic parameters. The analysis of variance revealed that the genotypes had shown the significant differences among themselves for all characters. Wide range of variability was recorded for the traits yield per plant followed by pod per plant, root dry weight and nodule weight per plant indicating the presence of ample amount of variability in the experimental material. In general phenotypic coefficient of variation (PCV) was slightly higher in magnitude than genotypic coefficient of variation (GCV) suggesting that expression of the characters are being controlled by genotype itself. High heritability coupled with high genetic advance was observed for the trait such as number of pods per plant, harvest index, yield per plant, nodule weight per plant, root length, root dry weight, peroxidase and proline content, indicating the preponderance of additive gene action thus simple selection may be rewarding. Pods per plant and peroxidase exhibited positive and significant correlation with the grain yield along with their high and positive direct effect as harvest index, catalase, protease and proline content also exhibited positive and significant correlation with yield owing to the positive and high indirect effect via pod per plant suggesting that the these traits may be considered during the course of selection for enhancement of yield in chickpea. Maximum inter cluster distance was observed between cluster III and cluster VII suggesting that the he genotypes placed in these clusters are most divergent one and so as to have the heterotic recombinant these parents may be used in crossing program. Flip-10-144C in cluster VI had higher cluster mean for most of the yield attributing traits, so, this genotype may be used as donor to incorporate the respective traits in the recipient variety. Proline has contributed maximum towards divergence followed by protease content, catalase content and nodule weight per plant.
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    ThesisItemOpen Access
    Divergence studies in chickpea (Cicer arietinum L.) under Zinc deficient soil
    (Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, 2018) Supriy; Arya, Madhuri
    The present investigation was carried out with twenty four genotypes of chickpea entitled “Divergence studies in chickpea (Cicer arietinum L.) under Zinc deficient soil” was carried out at T.C.A., Dholi, Research Farm of Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar in a Completely Randomised Block Design with three replications during Rabi 2017-18.The characters studied were Plant height(cm), Number of primary branches per plant, Number of secondary branches per plant, Days to 50% flowering, Number of pod per plant, Number of seed per pod, Zinc content in grain (ppm), Chlorophyll content (mg/g fr. wt.), relative water content (%), 100 seed weight (g), Harvest index (%), Yield per plant (g), score of wilt incidence. Statistical analyses were carried out were, Analysis of variance, genotypic and phenotypic coefficient of variation, Heritability, Genetic advance, Correlation coefficient analysis, path analysis and Genetic diversity. Analysis of variance revealed highly significant differences among the genotypes for all the characters studied showed presence of ample amount of genetic variability studies. The genotypes exhibited high variability for the characters like number of pod per plant, yield per plant, 100 seed weight. Among all the genotypes only ICCV-10 has shown susceptible reaction against wilt.There was meagre differences between GCV and PCV suggesting that the expression of these characters are being governed by genotype itself. Characters like number of secondary branches per plant, number of pod per plant, zinc content in grain, chlorophyll content, relative water content, 100 seed weight, yield per plant have shown high heritability coupled with high genetic advance as percent of mean suggesting that there is preponderance of additive gene action thus for these characters simple selection may be rewarded under Zinc deficient soil. Yield per plant exhibited significant and positive correlation with chlorophyll content and harvest index indicating that these two traits are important in predicting seed yield.Chlorophyll content and harvest index have shown positive and significant correlation with yield per plant comprising their high and positive direct effect suggesting that during the course of selection these traits may be considered as prime trait for improvement of yield in chickpea under Zinc deficient soil. All the twenty four genotypes were grouped into five clusters. Cluster I contains maximum number of genotypes i.e. 8 and cluster IV and V has minimum i.e. one genotype each. Maximum intra-cluster distance has been observed for cluster III and zero for cluster IV and V as they have only one genotype. Maximum inter-cluster distance has been observed between cluster III and V and minimum between cluster IV and V. JG-315 has multiple resistance against disease and pest as well as having higher number of pod per plant. It lies in cluster V which has highest cluster mean for primary branches per plant, zinc content in grain chlorophyll content, harvest index, yield per plant. RSG -888 comprises higher 100 seed weight, highest harvest index as well as highest seed yield. It lies in cluster IV which has highest cluster mean for plant height, pod per plant, 100-seed weight. Chlorophyll content is highest contributor towards divergence in chickpea genotypes followed by zinc content in grain under Zinc deficient soil.