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ThesisItem Open Access STUDIES ON NIPPING OF AUXILIARY FLOWER RUDS AND MICRONUTRIENT APPLICATION ON SEED YIELD AND QUALITY OF SUNFLOWER RESTORER LINE. RHA-857(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, DHARWAD, 2001) Patil; Shivashankaragouda Vyakaranahal, B S"Most of the restorer parents used in sunflower hybrid seed production are of multi branched with low productivity. To solve these constraints, an investigation on nipping of auxiliary flower buds and micronutrient application on seed yield and quality of sunflower restorer line, RHA-857 was carried out by conducting a field experiment at Main Research Station, University of Agricultural Sciences, Dharwad. The experiment was laid out in Randomized Block Design with factorial concept and consisted of two factors viz., nipping (2) and micronutrients application (5) and with one control (no nipping/no micronutrient). In restorer line, continuous nipping of auxiliary flower buds from 35 days after sowing (DAS) onwards recorded significantly higher yield and its attributes. Seed yield per hectare increased 65.8 per cent over control. The yield attributes like yield per plant, capitulum diameter, filled seed number, seed filling per cent, seed recovery per cent and 100 seed weight were also increased in this treatment. This was followed by nipping of side branches once at 55 DAS over control. Plant height and chlorophyll content in leaf were significantly higher in nipped plants, while higher dry matter was found in control plants. Seed quality parameters like germination percentage, rate of germination, root length, shoot length, vigour index, dry weight and oil content were significantly higher in the seeds of nipped plants over control. Among the micronutrient application, foliar spray of boron or ZnS04 @ 0.1% at ray floret stage (55 DAS) increased the seed yield by 38.2 and 18.0%, respectively over control. Similarly boron @ 2 kg/ha dusting at ray floret stage, ZnS04 @ 10 and 20 kg/ha through soil application also increased the seed yield by 27.3, 7.9 and 15.0%, respectively over control. Further, it is also observed that application of boron (0.1%) increased the capitulum diameter, filled seed number, seed weight per capitulum, seed set percentage, 100 seed weight, germination, rate of germination, root length, shoot length, vigour index, dry weight of seedling and oil content of seed. "ThesisItem Open Access SYNCHRONIZATION STUDIES IN PARENTAL LINES OF RICE HYBRIDS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, DHARWAD, 2001) Patil; Veeranagouda; Biradarpatil, N K"The field experiments were carried out at Main Research Station, Dharwad and Agricultural Research Station, Siruguppa during kharif 2000-01 on synchronization of flowering in parental lines of rice hybrids. Among the parental lines the restorer line KMR-3 required more effective accumulated temperature and produced more number of leaves, where as another restorer line IR9761-19-01 required less effective accumulated temperature and produced less number of leaves till 50 per cent flowering at both the locations. The maintainer line required less effective accumulated temperature and produced less number of leaves compared to their respective CMS lines. The growth duration and effective accumulated temperature requirement of the parental lines varied with locations, where as, the number of leaves produced by the parental lines was relatively stable. Hence, the leaf number difference method was found to be more reliable for adjusting the planting dates of parental lines at both the locations. The maintainer line (IR58025B) was early by 4.7 days in 50 per cent flowering than the female line (1R58025A). Sowing of maintainer line, five days later than the female line was found to achieve better synchronization and increased the seed yield by 45.3 per cent, over simultaneous planting (control). The foliar spray of gibberellic acid (100 ppm) or single super phosphate (1.0%) to female parent at panicle initiation enhanced the 50 per cent flowering by 3.4 and 2.4 days and increased the seed yield of female line by 46.1 and 29.4 per cent, respectively over control. Foliar spray of urea (2.0%) to maintainer line or jerking the seedling of maintainer line at panicle initiation delayed 50 per cent flowering by 2.7 and 2.0 days and increased the seed yield by 30.8 and 27.4 per cent, respectively over control. Spraying of gibberellic acid 100 ppm and simultaneous planting recorded significantly higher germination (93.3%), shoot length (12.6 cm), root length (12.7 cm), seedling dry weight (134.6 mg) and vigour index (2356) compared to all other treatments."ThesisItem Open Access DEVELOPMENT OF TECHNOLOGY FOR PINEAPPLE WINE MAKING(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, DHARWAD, 2005) Patil; Santhoshkumar Patil, A B"Pineapple is one of liie important friut crops of India, ll is good source of sugars, proteins and also flavouring compounds. So the production of fermentable product like wine from the pineapple fruit is the most suitable processing method of tap these characters. Mcncc an investigation was carried out at the Department of Agricultural Microbiology, University of Agricultural Sciences, Dharwad during the year 2002-2004. Yeast spp. were isolated form the pineapple fruits and these isolated yeast strains were characterised and compared with standard strain Saccharomyces ellipsoideus No. 101 for different parameters. Among the isolated strains, the yeast strains SPQ-3, SPQ-4 found superior over other isolates. Hence these strains were further screened for wine making. Wine was also prepared from the fruit pulp and juice extracleel Iroui Iwu different varieties of pineapple. The results of chemical analysis indicated that wine produced from Queen variety inoculated with S. ellipsoideus No. 101 was found superior over other wines produced, with respect to characteristics like TSS, acidity, sugar level and alcohol content organoleptic evaluation has also showed similar results. Wine was also produced by blending of Kew and Queen juices in different proportions like 1:1, 1:2 and 2:1 ratio. Ammonium sulphate (0.3) and dipotassium hydrogen phosphate were used as N and P sources for enhancing the efficiency of strains. Wine produced with N and P sources was found superior than wines produced without amelioration of N and P sources. Wine was produced by using different clarifying agent like bciitoiiile c:lay and casein (n' 400 mg/1. Wine produced by the addition of hcnloiiik' clay after fermentation was found better than the wine produced by ihe addition of casein in all the characteristics. Among the pineapple wines, wine produced form Queen variety inoculated with S. ellipsoideus No. 101 was in comparison with grape wine inoculated with same strain."