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ThesisItem Open Access Variability, Character Association and Genetic Divergence Studies for Seed Yield and Related Traits in Parental Lines of Pearl Millet {Pennisetum glaucum (L.) R. Br.}(SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY, BIKANER (RAJASTHAN), 2017) NEELU KUMARI; N.K. SharmaPearl millet {Pennisetum glaucum (L.) R. Br.} commonly known as “Bajra”, is a coarse cereal belongs to family Poaceae. It is a diploid species with chromosome number 2n=2x=14. Pearl millet is a highly cross-pollinated species because of the protogynous nature of its hermaphrodite flowers where stigmas emerge earlier than the anthers and hence stigmas receive pollen from the inflorescence of other plants. Its inflorescence is a compound terminal spike called panicle. Pearl millet seed is a caryopsis. It has a typical monocotyledonous type of root system consisting of seminal or primary root, adventitious roots, and crown or collar roots. The C 4 pathway of pearl millet enhances photosynthetic efficiency and ability to produce higher biomass under hot and dry environment. Pearl millet grows on a wide variety of soils including sandy, light textured soils, and may sustain growth on acidic and poor fertile soils. Pearl millet is the sixth most important global cereal crop which is grown by subsistence farmers in the semi-arid regions of sub-Saharan Africa and the Indian subcontinent (Haussmann et al., 2012). It is the main source of food for 500 million of the poorest people living predominantly in parts of Asia and Africa. Pearl millet is well adapted to the production systems characterized by low and erratic rainfall, frequent drought, high temperature and poor soil conditions. It is widely cultivated on plain land as well as sand dunes as sole crop or mixed with legumes and intercropped with woody perennials in Rajasthan. It is also cultivated exclusively for green fodder during summer and Kharif season (Sharma, 2013a).ThesisItem Open Access Combining Ability Analysis for Yield and its Components in Bread Wheat (Triticum aestivum L. em. Thell.) over Environments(RAJASTHAN AGRICULTURAL UNIVERSITY, BIKANER S.K.N. COLLEGE OF AGRICULTURE, JOBNER, 2008) Sita Ram Pancholi; S. N. SHARMATen genetically diverse parents of bread wheat namely, HP 1863, WH 786, UP 2611, HUW 567, Raj 4058, PBW 533, JKW 8, UP 2590, HD 2859 and PBW 509 were crossed in a diallel fashion (excluding reciprocals) and resulting 45 F1s, 45 F2s and parents were evaluated under three different sowing dates viz., 01st November (E1), 20th November (E2) and 20th December (E3) in RBD with three replications during rabi 2004-05. Significant differences among the genotypes on pooled basis as well as in individual environments were observed for all the traits, namely, days to heading, days to maturity, plant height , number of tillers per plant, flag leaf area, peduncle length, ear length, number of spikelets per ear, number of grains per ear, 1000-grain weight , grain weight per ear, biological yield per plant , harvest index and grain yield per plant, Combining ability analysis indicated that both GCA and SCA variances were significant on pooled as well as individual environment basis for most of the characters.ThesisItem Open Access Comparative Study of S1 and Open-pollinated Progenies of Pearl millet [Pennisetum glaucum (L.) R.Br. emends Stuntz] for green fodder yield and its components(Department of Plant Breeding & Genetics, Swami Keshwanand Rajasthan Agricultural University, Bikaner S.K.N. College of Agriculture, Jobner, 2011) Ganga Ram; K.C. SHARMAA comparative study of thirty six, S1, S1-OP-S1 and S1-OP-OP progenies of pearl millet [Pennisetum glaucum (L.) R.Br. emends Stuntz] has been studied for nine quantitative traits. Significant differences were observed in all three types of progenies for all the characters namely days to heading, plant height, leaves per plant, tillers per plant, 3rd leaf area internode extrusion, leaf : stem ratio, stem thickness per plant and green fodder yield.ThesisItem Open Access Regeneration in Callus Cultures of Ghritkumari (Aloe bardadensis Mill.)(RAJASTHAN AGRICULTURAL UNIVERSITY, BIKANER S.K.N. COLLEGE OF AGRICULTURE, JOBNER, 2009) YAD RAM GURJAR; M. L. JAKHARThe present investigation was carried out with the objectives of optimization the conditions for callus induction, to initiate regeneration in callus culture, to study the factors affecting in vitro regeneration and standardization of hardening protocol for regenerated plantlets. The explant (adventitious bud) were inoculated on MS medium supplemented with varying concentration of cytokinins (BAP/Kn) and auxins (NAA/ 2,4-D) either added singly or in combination. The culture were incubated at 25 + 20C under 14 : 10 photoperiod with light intensity of 3000 luxThesisItem Open Access Genetics of Seed Yield and its Components in Sesame (Sesamum indicum L.)(Rajasthan Agricultural University, Bikaner College of Agriculture, Bikaner, 2008) Chhail Bihari Joshi; D.K. GargSeven parents and their 21 F1s were grown at College of Agriculture, Research Farm, Bikaner in randomized block design during Kharif 2007 with three replications. Each parent/F1 was sown in a two row plot of 2 m length separated by 30 cm. Plant to plant distance of 15 cm was maintained. Data on different seed yield and its contributing characters were recorded at the time of maturity on a random sample of 10 plants from each plot. Diallel analysis was done as per Griffing’s (1956) method II, model I. Heterobeltiosis and heterosis were also estimated.ThesisItem Open Access Genetic Variability and Divergence Analysis for Yield and Yield Attributing Characters in Isabgol (Plantago ovata Forsk.)(Swami Keshwanand Rajasthan Agricultural University, Bikaner College of Agriculture, Bikaner, 2009) Virendra Singh Rajpurohit; A.K. SharmaThe present investigation was carried out to estimate genetic variability, character association, path coefficient and genetic divergence among 36 genotypes of isabgol for thirteen morphological characters. Analysis of variance indicated presence of considerable variability for all the 13 characters. High genotypic and phenotypic coefficients of variance were recorded for seed yield per plant, biological yield per plant and number of effective tillers per plant. High estimates of heritability along with high genetic advance as percent of mean were observed for 1000-seed weight, seed yield per plant and spike length. Therefore, these characters can aid in selection programme.ThesisItem Open Access Influence of Antioxidants on Micropropagation of Gwarpatha (Aloe vera L.)(DEPARTMENT OF PLANT BREEDING AND GENETICS S.K.N. COLLEGE OF AGRICULTURE, JOBNER-303329 SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY, BIKANER, 2014) Kiran Sethi; M.L. JAKHARThe present investigation was carried out with the objectives to determine optimum level of different antioxidants of Aloe vera to standard micropropagation protocol, to study physical factor affecting and hardening of micropropagated of plantlets. The explants (adventitious bud) were inoculated on MS medium supplemented with 0.5 mg/l BAP+0.5 mg/l NAA alongwith different levels of antioxidants (ascorbic acid, activated charcoal, polyvinylpyrrolidone and citric acid). The cultures were incubated at 25 + 20C under 14: 10 photoperiod with a light intensity of 3000 lux.ThesisItem Open Access Variability and Genetic Divergence Studies for Seed Yield and Related Traits in Mothbean Germplasm [Vigna aconitifolia (Jacq.) Marechal](Department of Palnt Breeding and Genetics College of Agriculture, Bikaner Swami Keshwanand Rajasthan Agricultural University, Bikaner (RAJ.), 2018) SMRUTISHREE SAHOO; Dr. A.K. SharmaThe present investigation was carried out to estimate genetic variability, correlation, path coefficient analysis and genetic divergence among forty eight moth bean germplasm along with two check varieties for twelve quantitative characters. These genotypes were planted in randomized block design with 3 replications during kharif 2017-18. The results of analysis of variance indicated presence of considerable amount of variability among all the genotypes for all the twelve characters studied. Moth bean germplasm lines GP-MOTH-123, GP-MOTH-129, GP-MOTH-130, GP-MOTH-92 and GP-MOTH-8 were found superior as they had high mean performance for seed yield along with other traits. These germplasm lines can be utilized in future breeding programmes in order to get superior varieties. Characters namely seed yield per plant, harvest index, number of pods per plant, plant height and number of seeds per pod exhibited high GCV, PCV, high heritability with high genetic advance per cent mean indicates that these characters were under the control of additive gene effects.ThesisItem Open Access Induced Genetic Variability and Divergence in M3 Generation in Mothbean (Vigna aconitifolia Jacq.)(2008) Hemraj Kumawat; A.K. SharmaThe present investigation was carried out to estimate genetic variability and genetic divergence among 60 mutant lines in M3 generation of three varieties of mothbean for 10 morphological characters. These mutant lines were raised in randomized block design with three replications during Kharif- 2007 at Research Farm, Agricultural Research Station, R.A.U., Bikaner. The results indicated that all the mutant lines showed wide range of variability.
