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Open Access
Investigations on Planting Methods and Nutrition on Growth, Yield and Quality of Vetiver (Vetiveria zizanioides (L.) Nash)
(University of Agricultural Science, Dharwad, 2017-06) Raviprasad Sajjan M.; Venugopal, C.K.
A field investigation was conducted to evaluate the effect of planting methods and nutrition on growth, yield and quality of vetiver (Vetiveria zizanioides (L.) Nash Syn. Chrysopogan zizanioides) during July 2015- July 2016 at the Medicinal and Aromatic Plants Unit, Saidapur Farm, University of Agricultural Sciences, Dharwad, Karnataka. The experiment was laid out in split-plot design with three main plots (planting methods viz., P1– Ridge and furrow method, P2– Bed method and P3– Bag method) and six sub-plots (fertilizer levels viz., F1- 25:25:25 NPK, F2- 50:25:25 NPK, F3- 75:25:25 NPK, F4- 25:50:25 NPK, F5- 50:50:25 NPK and F6- 75:50:25 NPK kg/ha) comprising of eighteen treatment combinations replicated twice. Planting methods and nutrition levels had significantly influenced all the growth and yield parameters. Among the planting methods, bag method (P3) recorded significantly higher yield parameters viz., root length (50.12 cm), number of roots per plant (316.97), fresh root weight (219.15 g/plant), dry root weight (95.06 g/plant), root yield per ha (4,085.78 kg/ha) and essential oil yield (85.34 kg/ha) compared to other planting methods. Among fertilizer levels, 75:50:25 kg NPK per ha (F6) recorded significantly higher root length (45.98 cm), number of roots per plant (260.97), fresh root weight (177.28 g/plant), dry root weight (86.32 g/plant), root yield per ha (3,453.19 kg/ha) and essential oil yield (73.32 kg/ha) than all other lower levels of fertilizers at 12 months harvest. Among interactions, the combination of P3F6 (Bag method with fertilizer levels of 75:50:25 kg NPK/ha) recorded significantly higher root length (55.91 cm), number of roots per plant (350.4), fresh root weight (238.30 g/plant), dry root weight (103.29 g/plant), dry root yield (4.33 t/ha) and essential oil yield (94.25 kg/ha) compared to all other interactions. The same treatment combination also registered maximum gross returns (Rs.5,63,357/ha), net returns (Rs. 4,15,295/ha) and B:C ratio (1:3.80).
Open Access
Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.)
(University of Agricultural Science, Dharwad, 2017-06) Latha S.; Dharmatti, P.R.
Marigold genotypes were evaluated at New orchard, Department of Horticulture UAS, Dharwad, during 2015-2016, to study the variability and genetic divergence and it was also aimed to generate variability through mutation studies using gamma rays and to develop production technology through Integrated Nutrient Management (INM). The results revealed that, the genotype Double Orange was appreciated for growth, flower quality and yield attributes, high heritability coupled with genetic advance over mean was observed for most of the traits. The genetic divergence studies, grouped twenty six genotypes of marigold into seven clusters. Among 26 genotypes, Double Orange and Pusa Basanti Gainda formed single genotype clusters, which made them so divergent from others. Based on this experiment the genotype Double Orange was used for mutation and INM studies. Mutation studies indicated that, germination and survivability percentage was decreased with increase in gamma rays dosage, where as lethality increased with increasing doses of gamma rays. Higher co-efficient of variation for majority of the vegetative and flower characters was at higher doses of 500 and 600 Gy gamma treated mutants population. Further, these higher doses have resulted in maximum number of chlorophyll mutants with higher frequency of 3.14 and 3.15 % (500 and 600 Gy, respectively). The treatment of higher doses also resulted in maximum number of morphological mutants. and they were evaluated further on large scale in M3 generation. In INM studies, application of plants with 50 % RDF + vermicompost equivalent to 50 % RD'N' + poultry manure equivalent to 50 % RD'N' (T4) was most superior for increasing growth, flower quality and yield (16.73 t/ha) of marigold. However, the benefit cost ratio was highest (3.75) in treatment supplied with 50 % RDF + FYM equivalent to 50 % RD'N' + Sheep manure equivalent to 50 % RD'N' (T9) which was found superior compared to other treatments.
Open Access
Studies on Fertigation and Growth Regulators in Capsicum Grown Under Polyhouse
(University of Agricultural Science, Dharwad, 2017-06) Dhotre, Mallikarjun; Mantur, S.M.
Influence of different levels of irrigation and fertigation as well as the plant growth regulators on growth, productivity, quality and profitability of capsicum grown under a naturally ventilated polyhouse was studied at the Hi-Tech Horticulture Unit, University of Agricultural Sciences, Dharwad during 2014-15 and 2015-16. Hybrid Indra was studied with three drip irrigation regimes (I1: 40, I2: 60 and I3: 80 % of ETc) and three fertigation levels (F1: 50, F2: 75 and F3: 100 % of RDF) along with a control treatment consisting of drip irrigation at 100 % ETc and soil application of 100 % RDF. The best treatment combination from this experiment was selected for the next season to study the effect of growth regulators viz., NAA 50 ppm (G1), 100 ppm (G2), 150 ppm (G3), and CCC 200 ppm (G4), 400 ppm (G5), 600 ppm (G6) sprayed at three different intervals (I1: 30 and 45; I2: 30, 45 and 60 and I3: 30, 45, 60 and 75 days after planting) along with an absolute control. The results revealed that, vegetative parameters and fruit yield were significantly higher with irrigation regimes I2 and I3 as well as F2 and F3 levels of fertigation. I3 x F3 resulted in highest fruit yield (88.56 t/ha). I2 x F2 resulted in superior fruit quality parameters, higher uptake of major nutrients and dry matter accumulation as well as highest gross returns (Rs. 2,19,524/500 m2), net returns (Rs. 1,65,226/500 m2) and B:C ratio (4.05). Spraying plant growth regulators further enhanced growth parameters in capsicum. Fruit yield (106.61 t/ha) and fruit quality parameters were increased by the application of G2 x I3. Application of NAA @ 100 ppm at four intervals (G2 x I3) resulted in highest gross returns (Rs. 2,66,571/500 m2), net returns (Rs. 2,11,970/ 500 m2) and B:C ratio (4.89).
Open Access
PRODUCTIVITY AND QUALITY OF TUBEROSE (Polianthes tuberosa L ) HYBRIDS AS INFLUENCED BY PLANT DENSITY AND LEVELS OF FERTIGATION UNDER COST EFFECTIVE GREENHOUSE
(University of Agricultural Sciences, Dharwad, 2002) MALLIKARJUN BIRADAR; FAROOQI, A A
ABSTRACT NOT AVAILABLE
Open Access
IDENTIFICATION OF GENETIC MARKERS LINKED TO MALE STERILITY IN OKRA (Abelmoschus esculentus (L). MOENCH)
(University of Agricultural Sciences, Dharwad, 2002) RANJAN, M P; DUTTA, O P
ABSTRACT NOT AVAILABLE
Open Access
GENETIC EVALUATION OF ELITE SANDALWOOD (Santalum album L.) CLONES USING RAPD MARKERS
(University of Agricultural Sciences, Dharwad, 2002) SHASHIDHARA, G; FAROOQI, A A
ABSTRACT NOT AVAILABLE
Open Access
PRE AND POST-HARVEST PHYSIOLOGY OF TUBEROSE (Polyanthes tuberosa L,) Cv. Double
(University of Agricultural Sciences, Dharwad, 2000) NAGARAJU, H T; NARAYANA GOWDA, J V
ABSTRACT NOT AVAILABLE
Open Access
WATER USE EFFICIENCY IN POMEGRANATE (Punica granatum L.) cv. JYOTHI AS INFLUENCED BY DRIP IRRIGATION AND POLYETHYLENE MULCH
(University of Agricultural Sciences, Dharwad, 1999) JAGANATH, S; NARAYANA GOWDA, J V
ABSTRACT NOT AVAILABLE
Open Access
STUDIES ON VEGETATIVE PROPAGATION OF MANGO (Mangifera indica L.)
(University of Agricultural Sciences, Dharwad, 1999) HARISH, H L; MELANTA, K R
ABSTRACT NOT AVAILABLE

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