Online: www.uasd.edu www.uasraichur.edu.in www.uhsbagalkot.edu.in www.uahs.edu.in Theses Abstracts 2019 Post Graduate theses submitted to UAS Dharwad, UAS Raichur, UHS Bagalkot and UAHS Shivamogga Volume: 4 January - December, 2019 University of Agricultural Sciences, Dharwad University of Agricultural Sciences, Raichur University of Horticultural Sciences, Bagalkot University of Agricultural and Horticultural Sciences, Shivamogga KARNATAKA, INDIA Theses Abstracts : 2019 Post Graduate theses submitted to UAS Dharwad, UAS Raichur, UHS Bagalkot and UAHS Shivamogga Year of publication : March, 2020 Pages : 232 + 7 Copies : 750 Copy right : University of Agricultural Sciences Dharwad - 580 005, Karnataka, India Edited by : Dr. R. A. Balikai, Editor, Publication Centre, UAS Dharwad Compiled by : Dr. L. H. Malligawad, Dean (PGS), UAS Dharwad Dr. Satyanarayana Rao, Dean (PGS), UAS Raichur Dr. M. S. Kulkarni, Dean (PGS), UHS Bagalkot Dr. T. S. Vageesh, Dean (PGS), UAHS Shivamogga Dr. R. A. Balikai, Editor, Publication Centre, UAS Dharwad Dr. U. Satish Kumar, Editor, Publication Centre, UAS Raichur Dr. Y. K. Kotikal, Editor, Publication Centre, UHS Bagalkot Dr. Jayalaxmi Narayan Hegde, Editor, Communication Centre, UAHS Shivamogga Publisher : Dr. S. B. Hosamani Director of Education UAS Dharwad - 580 005, Karnataka, India DTP and Typesetting : DTP Unit Publication Centre, Directorate of Education University of Agricultural Sciences, Dharwad - 580 005 CONTENTS Sl. No. Particulars Page No. I. Theses Abstracts of UAS Dharwad 1. Doctor of Philosophy ......................................................................................... 01-14 2. Master of Science ............................................................................................... 15-84 II. Theses Abstracts of UAS Raichur 1. Doctor of Philosophy ......................................................................................... 85-95 2. Master of Science ............................................................................................. 96-144 III. Theses Abstracts of UHS Bagalkot 1. Doctor of Philosophy .....................................................................................145-156 2. Master of Science ........................................................................................... 157-201 IV. Theses Abstracts of UAHS Shivamogga 1. Doctor of Philosophy .....................................................................................202-205 2. Master of Science ........................................................................................... 206-232 Theses Abstracts of UAS Dharwad ABSTRACTS OF THESES Accepted for the award of post-graduate degrees by the University of Agricultural Sciences, Dharwad during 2019 DOCTOR OF PHILOSOPHY A. CROP SCIENCE GENETICS AND PLANT BREEDING Genetic analysis for resistance to rust in soybean [Glycine max (L.) Merrill] P. G. SURESHA 2019 MAJOR ADVISOR: Dr. G. T. BASAVARAJA The present investigation was carried out during 2015-17 at the MARS, to rust resistance in F2 population of cross JS335xEC241780 was carried UAS, Dharwad and R & D Farm, Ugar Sugar Works, Ugarkhurd with out. Among 144 exotic germplasm lines including resistant and susceptible different experiments. Evaluation of 144 exotic germplasm lines checks, only one line EC242104 and resistant checks recorded disease including highly susceptible check JS335 and resistant checks viz., grade 1 with highly resistant reaction. The k-means cluster analysis for DSb21, EC241780 and EC241778 were evaluated during kharif 2015 yield related traits in 144 germplasm lines were grouped into eight at Dharwad for identification of new sources for resistance to rust and clusters. Inheritance study revealed that rust resistance is controlled by genetic diversity. Based on the resistance reaction, 22 lines which single dominant gene in all the crosses. The resistant genotypes can be exhibited resistant/moderately resistant reaction were selected and used as a confirmed source of resistance and utilized in future resistance further evaluated to confirm their resistant reaction under natural breeding programmes. The F3 families of three crosses, viz., JS335 x epiphytotic condition at two hotspots for rust viz., Dharwad and EC241780, EC241780 x JS335 and DSb21 x EC241780 have generated Ugarkhurd during kharif 2016. Three genotypes viz., DSb21, JS 335 sufficient variability and also nine superior segregants. Study on and EC241780 were utilized for hybridization during summer 2015 to validation of molecular markers, only three markers Satt 361, Satt 275 study the inheritance pattern for rust resistance and variability. and Satt 215 exhibited polymorphism. The polymorphic markers were Subsequently, F2 and F3 populations were raised during kharif 2016 -17, further analysed by single marker analysis which showed a significant respectively. In addition to this, validation of molecular markers linked association with rust resistance. Genetic variability, inheritance and molecular studies in colour cotton (Gossypium spp.) H. S. SARITHA 2019 MAJOR ADVISOR: Dr. RAJESH S. PATIL The present investigation was conducted during the kharif seasons of to be dominant over their white counterparts. But white fiber colour 2016-17 and 2017-18 at the Agricultural Research Station, Dharwad was dominant over the green colour. Brown colour of lint is mainly Farm. The present study was aimed at identifying the promising controlled by two genes with duplicate dominant interaction. Almond stable colour-cotton genotypes, deciphering the genetics underlying and green colour lint was inherited as single gene with biallelic nature. the fiber colour and molecular studies related to fiber colour in colour- Histological studies for fiber colour showed that pigments in brown cotton. Analysis of variance revealed significant variability among colour were proanthocyanidins which belong to the flavonoid group. the genotypes for yield, fiber quality traits and fiber colour with The molecular marker DSSR-8 was found to be associated with the moderate heritability. All agronomic traits had significant direct effect brown and almond colour through bulk segregant analysis. None of and positive correlation with seed cotton yield. Fiber colour trait was the markers showed polymorphism for white and green bulks in both negatively associated with productive and fiber quality traits and interspecific and intraspecific crosses. The gene expression studies fiber strength could be used as a negative surrogate for indirect selection of candidate colour genes showed that all five structural genes were of fiber colour. The genotypes MB-535-1 (Medium Brown), DB-9-1, up regulated in brown cotton fiber followed by in green and white DB-57-2 (both Dark Brown), C-318-1 (Cream) and G-4-1 (Green) cotton at all the boll development stages. Genetic engineering strategies were identified as promising high yielding genotypes. Inheritance have to primarily focus on modifying the GhANS and GhANR genes showed that brown fiber colour and almond fiber colour were found to improve the intensity of pigmentation of cotton fibers. Genetic analysis of RIL population of groundnut for bold kernel genotypes and resistant to foliar diseases (Arachis hypogaea L.) S. M. SUPRIYA 2019 MAJOR ADVISOR: Dr. P. V. KENCHANAGOUDAR A study was conducted to understand the inheritance of resistance to LLS and rust under artificial epiphytotic condition. The result late leaf spot, rust and to identify superior recombinants for disease indicated that LLS and rust resistance in host plant is controlled by and confectionary traits in groundnut. A Spanish bunch variety GPBD-5 single recessive gene. Both populations were advanced to develop and interspecific derivative ICGV 86699 resistant to LLS and rust recombinant inbred lines (F6) and were phenotyped for productivity were crossed to a bold seeded adoptable but susceptible confectionary traits, quality traits and diseases during kharif 2017. In both genotype, TG 76. The, F2 and F3 populations of TG 76 × ICGV populations, ANOVA indicated significant variation for majority of 86699 and TG 76 × GPBD 5 crosses were evaluated with parents for the traits studied. Genetic variability studies revealed high to moderate 1 PCV and GCV, high heritability with high to moderate GAM for significant positive association was recorded between LLS and rust. most of the productivity traits and disease resistance. Presence of Further, attempts were made to identify markers linked to LLS, high genetic variability resulted in identification of superior rust and test weight resulted in identifictaion of five, four and three recombinants for productivity, nutritional traits and resistance to markers associated with LLS, rust and test weight, respectively. rust and LLS disease. Higher percentage of superior recombinants The potential RILs (8-2, 339-1, 17-1 and 90-1) superior to best for rust and LLS were observed in the cross involving a interspective parent identified for different traits, which could be utilized in future derivative (ICGV 86699) and spanish bunch cultivar (GPBD 5), breeding programmes. The study indicated scope for combining respectively. Pod yield showed significant positive correlation with high yield and foliar disease resistance with desirable confectionery test weight and negative association with LLS and rust. However, traits. Genetics of staygreen trait and its relation to drought tolerance in sunflower (Helianthus annuus L.) GURUPRASAD HIREMATH 2019 MAJOR ADVISOR: Dr. H. L.