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    ThesisItemOpen Access
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    ThesisItemOpen Access
    Heterosis and Combining ability studies in Garden Pea (Pisum sativum L.)
    (PAU, 2010) Dinesh
    Eighteen genotypes of pea were selected and crossed in line x tester fashion using fifteen females and three males during November 2007. Forty-five hybrids along with eighteen parents were grown at the Vegetable Research Farm, Punjab Agricultural University, Ludhiana during Nov, 2008. Significant mean squares due to lines, testers, hybrids, line x tester and parents vs. hybrids were observed for all the characters. The ratio of 2 sca/2 gca was more than unity in number of seeds per pod, nod at which first pod developed and for 100 seed weight, indicating non-additive gene action, while additive gene action was important for pod length, number of pods per plant, green pod yield, shelling percentage and crude protein. Among the females, ARKEL was found to be the best general combiner for days taken to 50% flowering, node at which first flower appears, and days taken to maturity. JP-501A/2 was found to be good combiner for pod length and number of pods per plant. Among the males, C-96 was good combiner for days taken to 50 per cent flowering, plant height, node at which 1st flower appears, pod length, shelling percentage, 100 seed weight and alcohol insoluble matter. The line C-400 found to be the best combiner for number of pods per plant, green pod yield and crude protein. The cross P1 x C-400 exhibited highest and significant sca effect for days taken to 50 % flowering and crude protein, KS-268 x PB- 89 for plant height and alcohol insoluble matter. ARKEL x PB- 89 for node at which first flower appears, C-308 x PB- 89 for pod length and ARKEL x C- 400 for number of pods per plant, P2 x PB- 89 for shelling percentage. The best heterotic combination for days taken to 50 % flowering was P1 x C- 400, days taken to maturity was ARKEL x C- 96, C- 308 x C- 400 for plant height, JM- 5 x C-96 for shelling percentage, MA- 6 x PB- 89 for node at which first flower appears, MA-6 x C- 96 for number of pods per plant, MA- 6 x C- 400 for pod length. The best heterotic combination for days taken to 50 % flowering was P1 x C- 400, days taken to maturity was ARKEL x C- 96, C- 308 x C- 400 for plant height, JM- 5 x C-96 for shelling percentage, MA- 6 x PB- 89 for node at which first flower appears, MA-6 x C- 96 for number of pods per plant, MA- 6 x C- 400 for pod length, PB- 88 x PB- 89 for number of grains per pod and KS- 268 x C- 400 for green pod yield, AP1 x C- 96 for crude protein and PMR- 19 x PB- 89 for alcohol insoluble matter. These can be utilized for further breeding programmes
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    ThesisItemOpen Access
    Software development for determining quality and maturity levels of tomato using image processing techniques
    (Punjab Agricultural University, Ludhiana, 2017) Kamalpreet Kaur; Gupta, O.P.
    Agriculture contributes a lot in the economic development of India. Maturity checking has become mandatory for the food industries as well as for the farmers so as to ensure that the fruits and vegetables are not diseased and are ripe. However, manual inspection leads to human error, unripe fruits and vegetables may decrease the production. Thus, this study proposes a Tomato Classification system for determining maturity stages of tomato (Green, Breaker, Pink, Light-Red and Red- Mature) through Machine Learning using Image Processing approach. Design and development of software has been implemented using Pycharm as an IDE and Python as a programming language. The method consists of image collection, preparing database and training seven different classifiers on 80% of the total data for evaluating the maturity stages of tomato using the surface color as an attribute. Rest 20% of the total data is used for the testing purpose. The results are obtained in the form of Learning Curve, Confusion Matrix and Accuracy Score. The Graphical User Interface (GUI) for Tomato Classification by using Python is achieved. It is observed that out of seven classifiers, Random Forest is successful with 92.49% accuracy in evaluating the maturity category of tomato. It is concluded from the results that the performance of the classifier depends on the size and kind of features extracted from the data set.
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    ThesisItemOpen Access
    A STUDY OF COST REDUCTION PRACTICES ADOPTED BY PHARMACEUTICAL UNITS IN NORTHERN INDIA
    (PAU Ludhiana, 2012) Nitin Chaudhary; Babita Kumar
    The present study was conducted to analyses the cost reduction practices and problems faced during their implementation in pharmaceutical units. The population for the study consisted of small, medium and large scale units of Northern India. The present study was restricted to Northern India. Out of those units 20 units were selected on the basis of random sampling techniques. Questions were framed to study the cost reduction practices adopted by different departments of the organization. The study found that work standardization was mainly followed as cost reduction practice for manufacturing and improvement in reaction speed and reduction in wastages was achieved in the last two years. Negotiation method for reducing inventory, providing on the job training for reducing training cost, automation for reducing personnel cost, direct selling for reducing distribution cost and improving ROI by process improvement were other cost reduction practices. Organizations were receiving many benefits like improved productivity and quality, reduction in wastages, decrease in inventory cost, increase in profits and competitiveness by adopting cost reduction measures. Organizations were facing problems of customers order which are highly fluctuating, frequent change in design, resistance from employees, lack of technical knowhow, budget constraint and lack of time to implement these practices. On the whole cost reduction practices are not so well engraved in the small pharmaceutical industries whereas they are more well adopted by large and medium scale units
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    ThesisItemOpen Access
    DRYING KINETICS OF GINGER (Zingiber officinale)
    (PAU Ludhiana, 2011) Sumit Maini; Ashok Kumar
    The experiments were carried out to study the drying behaviour of fresh ginger rhizome of Kozhikallan variety. The surface material was first peeled off. The material was then given various chemical treatments like hot water blanching, dipping in citric acid solution, dipping in lime and treating the product with KMS solution. The treated product was dried at 500C, 600C, 700C in the electrical tray dryer. Quality parameters of the dried product i.e. colour, texture, rehydration ratio and volatile oil content were found out. Dehydration characteristics revealed that drying took place in the falling rate period. It was also found out that pre treatment did not effect the quality much but the temperature did. Drying at 500C did not affect the quality significantly, but as the temperature increased the quality of the product significantly reduced. Volatile oil was recorded to be the highest i.e.2.2% for the product pre treated with citric acid and dried at 500C. The odour of the product pre treated with citric acid and dried at 500C was also found to be better. Change in colour values for fresh and rehydrated product was found to be less i.e. 5.93 in case of the product pre treated with citric acid and dried at 500C. Three models i.e. Newton, page and modified page models were fitted to the drying data. According to the statistical criteria (R2, chi square & RMSE), the modified page model was found to be the best fit model to describe the drying behavior of the ginger rhizome.
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    ThesisItemOpen Access
    Genetic analysis of yield, its components and fruit quality traits in chilli (Capsicum annuum L.).”
    (PAU Ludhiana, 2011) Parvinder Singh; Devinder Singh, Cheema
    The present investigations were conducted from April 2008 to August 2010 at the Department of Vegetable Crops, Punjab Agricultural University, Ludhiana. Twelve diverse chilli genotypes (CC141, MS341, SL461, SL462, DL161, EL181, US501, PA401, SD463, PP402, PS403 and VR521) selected on the basis of per se performance were crossed in diallel fashion (excluding reciprocals) to produce 66 F1 hybrids. These 66 F1 hybrids along with twelve parental genotypes and two commercial checks CH-1 and MH-1 (Soldier) were evaluated in the field during two consecutive years, in randomized complete block design (RCBD) with three replications, for yield and quality parameters. Highly significant and desirable heterosis over the better parent and standard checks were observed for almost all the characters in both the years. Analysis of variance for combining ability showed highly significant mean squares due to GCA and SCA for all the characters in both the years indicated the involvement of both additive and non-additive gene effects in the inheritance of these traits. The ratio of σ2 SCA/ σ2 GCA was less than unity for days to flowering, early yield, fruit number, fruit length, number of seeds fruit-1, plant height, plant spread, total fruit yield, chilli powder yield, dry matter content, oleoresin content, oleoresin yield and incidence of anthracnose, indicated additive gene action for these traits, while non-additive gene effects were important for fruit width, fruit weight, pericarp thickness, capsaicin in powder and in oleoresin, coloring matter in powder and in oleoresin and incidence of leaf curl virus. SL461 and DL161 were considered as the best general combiners for early and total yield. Moreover, these parents also showed desirable GCA effects for many other traits especially the quality traits viz. chilli powder yield, dry matter content, capsaicin in powder and in oleoresin, coloring matter in powder and in oleoresin, oleoresin content and oleoresin yield. Other good general combiners for different characters included SD463, PP402, US501, MS341, SL462, PS403 and CC141. The graphical analysis (Wr/Vr) showed that most of the traits exhibiting partial dominance and overdominance. Components of variance analysis revealed that both additive and dominance gene effects were important for inheritance of traits under study. Degree of dominance showed that most of the traits exhibited overdominance. The cross combination US501×SD463, showed significant and desirable SCA effects for days to flowering, early yield, fruit length, fruit weight, number of seeds fruit-1, total fruit yield, coloring matter in powder and in oleoresin, oleoresin yield and reaction to anthracnose. Other promising crosses for different traits were SD463×VR521, SL461×PP402, MS341×SL461, SL462×US501, CC141×VR521, SD463×PP402, SL461×PS403, SL462×EL181, SL461×DL161, MS341×US501, SL461×SL462, SL461×SD463, PP402×VR521 and CC141×PP402. It was suggested that heterosis and pedigree breeding methods with recurrent selection would facilitate simultaneous exploitation of the obtained genetic components in hot pepper improvement program.
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    ThesisItemOpen Access
    Mapping and characterization of leaf rust resistance gene transferred from Triticum monococcum L. to wheat (Triticum aestivum L.)
    (PAU Ludhiana, 2013) Amandeep Kaur Sandhu; V. S., Sohu
    Triticum monococcum and T. boeoticum, the diploid A genome species, possess several desirable genes for disease resistance and other traits of economic importance. RIL-101 derived from T. boeoticum acc.pau5088/ T. monococcum acc.pau14087 was used to transfer the leaf and stripe rust resistance to susceptible T. aestivum cultivar WL711 using Triticum durum cv. N59 as bridging species. BC2F6 population derived from the cross N59/RIL101//3*WL711 segregated for a single dominant leaf rust resistance gene (LrTm) at the adult plant stage conferring resistance to races 77-5 and 104-2. The resistance transferred from T. monococcum was found to be effective against wide range of Puccinia triticina pathotypes prevalent in India. Components of resistance studied at histological level indicated pre-haustorial as well as post-haustorial resistance in Tm14087 whereas post-haustorial resistance in Tb5088. Genetic analysis revealed the presence of two dominant adult plant resistance genes against mixture of stripe rust pathotypes 46S119 and 78S84. Molecular analysis in BC2F6 population using 540 SSR markers mapped LrTm on chromosome 6AL at 25.2cM from Xwmc152. Two stripe rust resistance genes were mapped one each on chromosome 2A and 5A using QTL mapping approach. Yrtm.pau-2A mapped in 3.6cM region between markers Xgwm558 and Xgwm630, whereas Yrtm.pau-5A mapped in a 13.3cM region between markers Xwmc727 and Xgwm595. The two genes mapped on 2A and 5A corresponds to QYrtm.pau-2A and QYrtb.pau-5A, respectively, earlier reported in diploid wheat. An integrated A-genome linkage map generated in the T. boeoticum acc.pau5088/ T. monococcum acc.pau14087 RIL population was enriched with 41 new SSR markers resulting in total map length of 1299cM. The present investigation thus reports transfer and mapping of a novel leaf rust resistance gene (LrTm) on chromosome 6AL of bread wheat. The study also validated the transfer of two stripe rust resistance genes in hexaploid wheat background. The mechanism of leaf rust resistance in T. monococcum acc.pau14087 and T. boeoticum acc.pau5088 has been established.
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    ThesisItemOpen Access
    A STUDY OF PREFERENCE AND SATISFACTION TOWARDS MOBILE SERVICE PROVIDERS AMONG RURAL AND URBAN CONSUMERS
    (PAU Ludhiana, 2012) MONEY DHINGRA; Gagandeep, Banga
    The present study was undertaken to understand and compare the preference and satisfaction of rural and urban consumers towards mobile service providers. The study consisted of all the rural and urban consumers of Ludhiana District. The study was conducted by selecting company outlets of five mobile service providers, one each of Airtel, Idea, Reliance, Vodafone and BSNL, were selected from both urban and rural areas on convenience basis. Further 20 customers from each company outlet were selected on random basis. Thus, 100 urban and 100 rural customers, i.e. a total of 200 customers were selected for the study. The primary data was collected with the help of structured and non disguised questionnaires. The results showed that rural respondents consider economical calling, network coverage, customer service, as the most important factors influencing their choice of mobile service providers. Urban respondents consider economical calling, network coverage, customer service and roaming services, as the most important factors influencing their choice of mobile service providers. It was also found that 69 percent of rural respondents and 56 percent of urban respondents would recommend others to subscribe to their mobile service provider.
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    ThesisItemOpen Access