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Birsa Agricultural University, Ranchi

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End date: 1996 × Start date: 1996 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Role of Hormones in Reproduction Management of Swine
    (Birsa Agricultural University, Ranchi, 1996) Shishir Kumar Harichandanray; Dr. A. K. Sinha
    1.Synchronized farrowing during day time on working days was possible either through intramuscular route (PG 5 mg) or IVSM route with a considerable low (1mg) dose of PG. 11. Termination of pregnancy with PG (day 111) revealed no adverse effect on piglet size or weight at birth. 111. Induced farrowed sows recorded significantly shorter weaning to fertile estrus interval. iv. Addition of oxytocin or EV to PG (5 mg) resulted in more precise farrowing (LWY) by shortening induction interval. V. Post parturient PG treatment (LWY) significantly increased piglet survivability and weight gain. Significantly shorter weaning to fertile estrus interval was recorded in the treated pigs. vi. The piglet born out of PG treated mother weaned at day 40, 45 or 50 consistently showed higher body weight than control. Vii .Application of PMSG (500 IU) alone or in combination with HCG (500 IU) at 24 hrs of weaning resulted in a significantly earlier post weaning estrus with higher CR than control. viii. Administration of HCG to sows at day 12 of service had a significant increase on piglet weight at birth.
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    ThesisItemOpen Access
    Crop Planning For Better Utilization of Land and Water Resources of Jumar Nala Watershed, Ranchi
    (Birsa Agricultural University, Ranchi, 1996) Braj Nandan Prasad; Dr. A. P. Mishra
    The present study aims to propose a suitable cropping pattern for Jumar nala watershed area of Ranchi . The investigation covered ,water recourse study and its availability , crop coefficient to estimate irrigation requirement of important Kharif and rabi crops, analysis of rainfall and evaporation data and formulation of linear programming model for optimal allocation of land and water resources of the watershed area. The sources of irrigation water are ponds and percolation wells only.The present storing capacity of ponds available in the study area is 66.7 % of total runoff expected at 30% risk.The total availability of water from these resources were estimated to be 62,156.9 ha-mm during Kharif and 35,348.6 ha-mm during rabi seasons . Excess and deficit analysis at 30% risk showed that excess period is continuous from 2nd July to 23rd September. The deficit period is also continuous from 24th September to 1st July during which there is need of supplemental irrigation for crop production. The analysis indicate that there is 20-25 % change of damage to Kharif crops under rainfed condition. The results of onset and withdrawal of mansoon indicated that field preparation and sowing operation of Kharif crops should be completed by 24th June and pudding operation by 8th to 15th July os that transplanting of paddy may be completed latest by 31st July of every year to get good Kharif crops at 30% risk. There is negligible amount of rainfed in post monsoon season. Winter season receives less than 40mm .rainfall even at 10% probability. Therefore, moisture resistant rainfed crops like Linseed Lentil and Gram may be recommended for watershed area during rabi season. Crop coefficient of approximately all crops were found higher between 23rd July and 16 th September which coincide with rainfall excess period. Crop coefficients of rabi crops were found higher between 17th December and 18th February which I rainfall deficit period. This is an indication of requirement of addition irrigation water during these period, but availability of water in the watershed area limits its application to selected crops at vulnerable growth stages. The existing cropping pattern was found deficient in producing balanced
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    ThesisItemOpen Access
    Genetic Studies on Quantitative and Qualitative Characters in Rice (oryza Sativa L.)
    (Birsa Agricultural University, Ranchi, 1996) Rajesh Verma; Dr.S.C.Prasad
    Four inter varietal along with their parents (P generation B and B 1 crosses of and P), F 1 rice Oryza and F 2 1 2 sativa L) and two cross of each cross were developed and were grown in randomized block design. with three replications during kharif season of the year 1994 under rainfed situation in the rice research farm of Faculty of Agriculture, Birsa Agricultural University, Ranchi. The analysis of variance of 6 generations of each the four crosses for different characters revealed that of the differences among the generations were highly significant for majority plant, of plant character viz., plant height, tillers leaf length, panicle length, flag leaf grain weight, breadth and grain. yield and harvest index. straw yield. The replication significani in almost all the character. length, expect effect was per 1000 leaf non The observed variances in the various generations for different characters in each of the revealed F variances to be more then F 2 4 varietal crosses variance for most of 1 the character. In case of plant height the vriance BC was 1 variance of BC in all the crosses. The 2 higher then the variation in the generation is due to the variability. The scaling test A,B and C, as well as test were found to be highly significant in all joint the scaling cross combination for all the 10 traits studied. This clearly showed a good fit of additive dominance model.
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    ThesisItemOpen Access
    Genetic Studies of Some Quantitative Characters in Maize (zea mays L.)
    (Birsa Agricultural University, Ranchi, 1996) Nitish De; D.K.Ganguli
    The present investigation entitled "Genetic studies of some quantitative characters in mize (Zen mys L.)" was carried out with a set of eleven mize genotypes which were crossed in all possible combinations without reciprocals. The fifty five crosses along with their parents and two checks were evaluated in a randomized complete block design with three replications during kharif 1994 to study variability, heterosis, combining ability and gene action for eleven quantitative plant characters, and also the yield prediction of double cross and synthetics that could be constituted for future utilization. The observation data over replication were utilized in analysing various genetic parameters. Estimmtes of combining ability for various characters ware done following dinllel (11 x 11) after Griffing (19560) as well an by line x tester (B lines x 3 testers) after Kempthorne (1957) taking some eleven genotypes in the two CASOS. Highly significant differences among the parents, and among the crosses were observed for all the characters. The mean values of the crosses were more than the parental for all the characters except for days to 50 per cent silk. mean Grain yield per plant, car height, number of kernels per car, number of kernels per row and ear length showed considerable phenotypic and genotypic coefficient of variation. The heritability estimates in broad sense for all the characters were higher in parents than the crosses. No character was found to have high heritability estimate together with high genetic advance. The extent of heterosis over mid-parent, better parent and two checks (Ganga Safed-2 and Suwan) for different characters varied considerably. Most of the crosses were found to give negative heterosis over the check varieties in mjority of the characters, however in case of days to 50 per cent silk, days to maturity, car girth and 100-kernel weight most of the crosses showed positive standard heterosis. Highest and significant positive standard heterosis over better check (Susan) for grain yield was observed in the cross BAU-8312 x CM-4385 (24.49 %). Heterosis for grain yield found to be associated with simultaneous heterosis in other component characters which differed in different crosses. However, 100-kernel weight, plant height and ear girth were the three commonest characters associated with heterosis for yield. The combining ability studies indicated the importance additive and non-additive gene actions in the expression characters, although The non-additive. gene action predominated, and the presence of over-dominance was observed in all the characters under both the mting designs except for days. to 50 per cent silk in diallel only.. The genotype BAU-SW/82 was the best general combiner for grain yield followed by BAU-8312, CM-4385 and BAU-W.Pool. The lines which were superior combiners for grain yield were also superior cabiners for one or more yield components. The crosses viz., BAU-8312 x CM-4385, CM-4357 x CM-600, CM-600 x BAU-W.Pool, BAU-SW/82 x CML-4386 and BAU-SW/82 x CML-4385 were the best specific cross combinations for grain yield per plant. under diallel analysis while CM-der* CM-600, CM-4373 x CM-600 and CM-4386 x BAU-W.Pool were best, line x tester analysis. CM-4357 x CM-600 being common one. Crosses showing high sca for grain yield also exhibited high sca for some component characters. In the comparative study between two mating designs the best general combiner for grain yield (BAU-SW/82) was the same. The estimates of various genetic components were also more or less similar in most of the characters under both diallel and line x tester analyses. The best specific cross combinations for yield and other characters. slightly differed in two methods of analyses. The per se performance of parents were found to be correlated with the gca effects for all the characters except for ear girth under diallel analysis whereas no such relation was found in line x tester analysis except for days to 50 per cent silk. However, the per se performance of the crosses showed parallel relationship with the sca effects for all the characters unler both the methods of unlysos. The best predicted double cross hybrid was (BAU-SW/82 x BAU-8312) x (CM-4385 x CL-4386) with an estimated yield of 61.69 q/ha and was 9.81 per cent higher than the better check Suwan (56.18 q/ha). Single cross hybrids gave better yield performance over the predicted double cross hybrids and synthetics. Top single crossos for grain yield do not constitute to give prodicted top double. cross yield. The predicted yield of all the syntheties were found lower than the check Suwan.
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    ThesisItemOpen Access
    Combining Ability And Heterosis Studies In Linseed (linum usitatissimum L.)
    (Birsa Agricultural University, Ranchi, 1996) Sohan Ram; H.B.P.Trivedi
    Linseed is predominantly a aulogamous crop of industrial significance inspite of considerable increase in area and production under linseed , the productivity under linseed, the productivity which is of foremost importance, is still stagnant in India. The prime objective of the present investigation was to evaluate some well recognised varieties and explore the combining ability variances of oil yield and seed yield components and their combining ability effects together with the studies on variability , heterosis and correlation through diallel analysis. Eight well recognised varieties of major linseed growing stated were obtained from project co-ordinator(Linseed) chandra shekhar Azad university of Agriculture and Technology, Kanpur, These varieties were crossed in 8x8 diallel fashion to obtain 28 direct and 28 reciprocal F1 hybrids .These hybrids were generation advanced in off season nursery to procure F2 seeds. These F1 and F2 hybrids were evaluated separately along with the parents for variability, heterosis, inbreeding depression , combining ability and correlation.
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    ThesisItemOpen Access
    Hydrological Investigations of Small Watersheds of Plateau Region of Bihar for Efficient Watershed Management
    (Birsa Agricultural University, Ranchi, 1996) Shoeb Quraishi; Dr. S. Tiwary
    On account of undulating nature of terrain, light texture of upland soil with low organic matter content, unpredictable and erratic rainfall faulty cultivating practices and other biotic factors like uncontrolled grazing and destruction of forest the problem of soil erosion and water loss is the most alarming throughout the Plateau region of Bihar , Since the entire region cones under reinfed area, the improved natural resources development management and conservation to provide a reliable base for stable agricultural production are critically needed in the region. Under this situation watershed if the only natural focus of research where proper planning has to be made for soil and water management in relation to crop production system resource conservation and utilization. The present investigation was therefore undertaken with objective to formulate the reliable response ,model s for predicting runoff water retention soil loss and nutrient loss along with evaluation of crop response for rainfed conditions under different cropping system identification of low investment high return crop combination and optimal allocation of land resources for different crops to get the maximum net return with minimum soil loss from small agricultural watershed of plateau region of Bihar. For estimating and quantifying the runoff sediment loss and nutrient loss the experiment of runoff2 plot under controlled condition with Arhar and groundnut as cover crops was conducted. On the basis of the data generated from this experiment mathematical models for runoff water retention sediment loss and nutrient loss were developed. The experiment was also conducted on watershed basis under Arhar +groundnut ,Arhar + maize cropping system and the predicted values of runoff water retention, sediment loss and nutrient loss from mathematical models were compared with the observed values obtained from the watershed experiment to evaluate the validity of the models.In order to develop crop response under rainfed condition the effect of water retention on grain yield of different cropping systems.An experiment was also conducted to evaluate the most economical crop combination among different cropping system recommended for rainfed condition for the region All experiment conducted at soil conservation Reasearch station farm Demotanr Hazsaribagh. The optimal solution for land use pattern is evaluated for different activities with a view to maximum the net return and minimize the soil loss from Ranchi Swanrekha North potpoto Nala catchment in Kanke Block having 1820 ha of total agricultural land with consideration of meeting the food requirement of the population of the watershed area. On the basis of analysis of twenty five years rainfall was found in the month rainfall was found in the month of July followed by August The rainfall predicted in the range of 40 to 60 per cent probability level may be applied for the estimate of runoff and soil loss and cultivation of suitable Khaarif crops under rainfed condition. The effective storm was found to be in the reabge of 60 to 65 per cent of the total rainfall. Maximum value of erosion index as 188.16 metric unit was found in the month of july expressing the higher rate of erosivity. Mathematical model for prediction of per cent water retention was developed in terms of foliage cover and slope of the land .The runoff rediction model was developed by volume