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Acharya N G Ranga Agricultural University, Guntur
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Banda University of Agriculture and Technology, Banda
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Acharya Narendra Deva University of Agriculture & Technology, Ayodhya
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Bihar Agricultural University, Sabour

Recent Submissions

  • ThesisItemOpen Access
    EVALUATION OF Annona muricata L. GENOTYPES FOR GROWTH, YIELD AND QUALITY ATTRIBUTES
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-17) LATHAMANI, M. K; Dr. NAGARAJAPPA ADIVAPPAR
    Annona muricata L. (Lakshmanphal) is an underutilized fruit crop which is gaining importance due to its potential health benefits. An experiment was conducted to evaluate the Annona muricata L. genotypes for growth, yield and quality attributes, during 2022-23 at Muddinakoppa village of Shivamogga district. Analysis of variance showed significant differences concerning growth, yield and quality attributes. The genotype PKN-25 recorded maximum fruit length (29.10 cm), fruit width (16.40 cm), fruit weight (2352.92 g), fruit volume (2262.46 cc) and pulp weight (1624.40 g). The highest number of fruits per tree (34) and highest fruit yield per tree (80.00 kg/tree) were recorded in PKN-25 followed by PKN-20 with 33 fruits per tree and 75.97 kg/tree. The highest values for fruit quality parameters like TSS (PKN-24: 18.23 ºB), titratable acidity (PKN-39: 1.25 %), reducing sugars (PKN-03: 8.87 %), non-reducing sugars (PKN-20: 3.79 %), total sugar (PKN-24: 11.97%), TSS: Acid (PKN-24: 24.64), sugar: acid (PKN-24: 16.18), ascorbic acid (PKN-02: 22.68 mg/100g fruit pulp), antioxidant activity (PKN-03: 70.13 %) and total phenolic content (PKN-02, PKN-24: 126.48 mg GAE/ g dry weight) were also recorded during investigation. High level of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) coupled with high heritability along with high genetic advance as per cent of mean (GAM) were recorded for most of the traits studied, indicating a high level of variability within genotypes. All the characters have highly significant and positive correlation with the yield except number of seeds per fruit and titratable acidity. Diversity studies revealed that 34 genotypes of Annona muricata were grouped into six clusters. The fruit yield per tree contributed more towards total genetic divergence followed by titratable acidity and antioxidant activity. The PKN-25 and PKN-20 found to be superior for fruit and yield parameters whereas, PKN-24 and PKN-03 found to be superior in terms of quality attributes
  • ThesisItemOpen Access
    INFLUENCE OF LIQUID PLANT GROWTH PROMOTING RHIZOMICROBIAL CONSORTIA ON QUALITY ROOTSTOCKS AND GRAFT SUCCESS IN MANGO (Mangifera indica L.)
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-12-16) DIDGI PRADEEPKUMAR; Dr. SRIDHAR. R; Dr. SHIVAKUMAR, B. S.
    An experiment was undertaken at the College of Horticulture, Hiriyur during 2022-2023. The experiment consisted of eight treatments with three replications which were laid out in a completely randomized design under the polyhouse condition, comprising eight treatments viz., T1 (Control), T2 (Azotobacter chroococcum), T3 (Bacillus megaterium), T4 (Frateuria aurantia), T5 (Azotobacter chroococcum + Bacillus megaterium), T6 (Azotobacter chroococcum + Frateuria aurantia), T7 (Azotobacter chroococcum + Bacillus megaterium + Frateuria aurantia) applied at 4 ml per each plant at the time of transplanting and VAM 10 g per plant was applied in common to all the treatments. Among different treatments studied, the rootstocks inoculated with Azotobacter chroococcum + Bacillus megaterium + Frateuria aurantia (T8) recorded maximum plant height (36.50 cm), stem girth (9.03 mm), number of leaves (17.39), leaf length (17.36 cm), leaf breadth (4.59 cm), leaf area (1006.26 cm2), leaf area index (4.33), fresh weight of shoot (42.46 g/plant), dry weight of shoot (11.51 g/plant), total dry matter production (18.95 g/plant), root length (22.93 cm), root thickness (8.50 mm), fresh weight of root (15.93 g/plant), dry weight of root (7.44 g/plant), root volume (14.67 ml), total chlorophyll content (2.49 mg/g of fresh weight) and total sugar (5.14 %) 120 days after transplanting. Similarly, maximum available nitrogen (232.86 kg/ha), available phosphorous (71.11 kg/ha), available potassium (210.07 kg/ha) in the media, total nitrogen (3.50 %), total phosphorous (0.73 %) and total potassium (3.26 %) in the plants was recorded by T8 (Azotobacter chroococcum + Bacillus megaterium + Frateuria aurantia) at 120 days after transplanting. In grafted plants, the maximum sprout success (84.44 %) at 60 days after grafting, survival percentage (84.55), sprout length (9.30 cm), sprout girth (4.76 mm), number of leaves (15.37), leaf length (14.08 cm) and leaf breadth (3.29 cm) at 120 days after grafting recorded by Azotobacter chroococum + Bacillus megaterium + Frateuria aurantia (T8). The combined use of liquid PGPRs ascertained the better establishment of mango rootstocks and graft success.
  • ThesisItemOpen Access
    IMPACT OF HARVESTING MONTH AND PRE-TREATMENT ON PHYSICO-CHEMICAL PROPERTIES OF FROZEN JACKFRUIT BULB
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-16) CHANDANA, S.; Dr. SHIVAKUJMAR, B. S; Dr. YALLESH KUMAR. H. S.
    The experiment was carried out during 2022-23 at NG Fruits, Sakharayapatna, Chikkamagaluru district. The study was laid out in Factorial Completely Randomised Design with three replications. The experiment consists of two factors viz., Harvesting months (M) and Pre-treatments (P). Among the harvesting months, jackfruit harvested in the last week of April (M4) had better physico-chemical and sensory properties. Among the pre-treatments, sodium benzoate at 500 ppm (P₂) showed better physical, bio-chemical and sensory characters (flavour and overall acceptability). Among different treatment combinations, fruit harvested in the month of April and pre-treated with sodium benzoate at 500 ppm (M4P2) showed better results with respect to physical properties viz., texture (35.18 N) and colour (43.27 b*) and bio-chemical properties viz., pH (5.09), TSS (25.75 ͦ Brix), reducing sugars (9.14%), non-reducing sugars (14.29%), total sugars (23.39%), protein (2.88%), carbohydrates (25.75%) and total carotenoid content (162.93 μg/100g) and with respect to sensory characters like overall acceptability score (4.86) and has highest B:C ratio (4.79). Also, the treatment M4P2 had minimum storage changes upto 90 days and has no incidence of micro-organisms. For bio-chemical, physical, sensory quality and cost economics, the treatment M4P2 (fruit harvested in end of April month and pre-treated with sodium benzoate at 500ppm) was found significantly superior for frozen jackfruit.
  • ThesisItemOpen Access
    STANDARDIZATION OF HARVESTING STAGE AND PRE-TREATMENT FOR DEHYDRATION OF TENDER JACK
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-15) CHANDANA, B. S; Dr. KANTHARAJ. Y; Dr, GANAPATHI. M
    The experiment was carried out during 2022-23 at College of Horticulture, Mudigere in laboratory condition. The experiment was laid out in Completely Randomized Design with two objectives viz., to assess the harvesting stage, 45 days after fruit set (DAFS) and 60 DAFS and pre-treatments with potassium metabisulphite (KMS), citric acid (CA) and potassium sorbate (PS) for dehydration of tender jack and to know the effect of packing materials, high density polyethylene (HDPE), low density polyethylene (LDPE), vacuum packing and aluminium laminated polyethylene (ALPE) for 180 days of storage. Among different harvesting stage and pre-treatments, fruits harvested at 60 DAFS and pretreated with KMS (0.3 %) showed significantly better results with respect to physico-chemical properties viz., maximum dry recovery (18.83 %), dehydration ratio (0.24), rehydration ratio (4.93), rehydration moisture (85.05 %), colorimeter value (82.47 L*), TSS (3.27 ⁰B), carbohydrate (13.18 %), crude fiber (3.28 %), protein (2.26 %), ash (1.40 %), overall acceptability score (4.75) and the minimum drying duration (9.08 hrs) and phenol content (32.07 mg GAE/g). Based on the results of experiment-1, treatment T10 (60 DAFS+KMS 0.3 %) and T9 (60 DAFS+KMS 0.2 %) were selected and packed in different packing materials for storage studies. In experiment-II, fruits harvested at 60 DAFS+KMS 0.3 per cent and packed in ALPE showed better storage stability which in turn maintained better physico-chemical and overall sensory score with minimum changes viz., moisture (7.23-7.32 %), colorimeter value (78.45-74.42 L*), texture (342.21-342.09 N), carbohydrates (12.92-12.85 %), crude fiber (2.69-2.64 %), protein (2.37-2.29 %), starch (1.70-1.67 %), fat (0.75-0.60 %), phenol content (34.25-34.13 mg GAE/g), overall acceptability (4.72-4.35 %) and without any microbial growth after 180 days of storage. Based on the results treatment P4 (60 DAFS+KMS 0.3 %+ALPE) is considered as best for dehydration and storage stability of the dehydrated tender jack.
  • ThesisItemOpen Access
    EFFECT OF SPACING AND SOIL pH REGULANTS ON GROWTH AND FLOWERING OF HYDRANGEA (Hydrangea macrophylla Thunb.) CUT FLOWER UNDER PROTECTED CULTIVATION
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-15) YASHASWINI, M. P.; Dr. NATARAJ. S. K; Dr. NARAYANA S MAVARKAR
    The present investigation entitled “Effect of Spacing and Soil pH Regulants on Growth and Flowering of Hydrangea (Hydrangea macrophylla Thunb.) Cut Flower under Protected Cultivation’’ was conducted in the Naturally Ventilated Polyhouse at College of Horticulture, Mudigere during the year 2022-23. The experiment was laid out in Randomized Complete Block Design (RCBD) comprising of five treatments with four replications. Results revealed that growth, flowering, cut flower quality and yield were significantly influenced by different levels of spacing. Planting at spacing of 45 × 60 cm recorded the maximum plant spread North – South (81.29 cm), stem girth (4.37 cm) and minimum days to flower bud opening (270.33). Whereas, the plants spaced at 45 × 45 cm apart recorded the maximum plant height (102.41 cm), leaf length (22.49 cm), number of leaves (58.12), diameter of inflorescence (25.66 cm), stalk length (115.41 cm), vase life (20.22 days), number of cut flower stems per plant (4.11), gross returns (₹ 34,52,400) with highest B:C ratio of 5.63. Hence, planting at 45 × 45 cm spacing is ideal for commercial cultivation of hydrangea for cut flower purpose. Further, among seven different soil pH regulants, application of Aluminium sulphate @ 120 g/ m2 intensified to true blue colour (Purple violet group N82 - Strong purple A) from initial light pink colour as observed in RHS colour chart, maximum anthocyanin content (delphinidin) (714.87 mg/ 100 g of fresh sepal) in combination with acidic soil pH (4.23), sepal pH (4.12), vase life (26.25 days), flower colour intensity (4.73), flower colour suitability (2.66), appearance of flower (4.51) and overall acceptability (4.80) with highest B:C ratio of 5.89. Hence, this is promising soil pH regulant for best colour intensification of hydrangea.
  • ThesisItemOpen Access
    ASSESSMENT OF GENETIC VARIABILITY AND DIVERSITY AMONG CUT CHRYSANTHEMUM (Dendranthema grandiflora Tzvelev.) GENOTYPES UNDER PROTECTED CULTIVATION
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-15) SHIVANI, V. S; Dr. NATARAJ. S. K; Dr. SRINIVASA. V
    A study was undertaken on the assessment of genetic variability and diversity among cut chrysanthemum genotypes under protected cultivation in ICAR-ELP polyhouse, Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, during 2022-23. The experiment was laid out in a Randomized Complete Block Design with three replications. The superior performance with respect to growth, flowering, quality and yield characters was recorded in the genotype Arctic Queen, Candor Pink and Champagne Orange. Analysis of variance showed highly significant differences among all the genotypes for all the characters under the study. High heritability coupled with high genetic advance as a per cent of mean was recorded for number of leaves, leaf length, leaf width, plant spread, stem girth, leaf area index, total chlorophyll content, duration of flowering, flower diameter, stalk length, number of flowers per stem, vase life, number of flower stems per m2 and number of flower stems per 1000 m2, suggesting that these traits can be improved through direct selection due to additive gene action. Based on D2 analysis, twenty genotypes of cut chrysanthemum were grouped into five clusters. Among the characters studied, number of flower stems per m2 contributed maximum (30.00 %) to the genetic diversity followed by vase life (14.74 %) and leaf area (14.60 %). Correlation studies exhibited that number of flower stems per m2 showed highly significant and positive correlation with plant spread (N-S), leaf length, leaf width, leaf area, flower diameter. Path analysis revealed that number of flower stems per m2 had a direct and positive effect on plant height, plant spread (N-S), leaf width, leaf area, number of leaves, days for bud initiation, flower diameter and vase life.
  • ThesisItemOpen Access
    STUDIES ON CHARACTER ASSOCIATION AND PATH ANALYSIS FOR YIELD AND QUALITY PARAMETERS IN STOCK (Matthiola incana L.) GENOTYPES
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-10-10) SANKETH, M. R; Dr. HEMLA NAIK. B; Dr. CHANDRASHEKAR. S. Y
    The investigation entitled “Studies on character association and path analysis for yield and quality parameters in stock (Matthiola incana L.) genotypes" was conducted at the College of Horticulture, Mudigere under KSNUAHS, Shivamogga, 2022-23. The experiment consisted of 11 genotypes, which were replicated thrice in a Randomized Complete Block Design (RCBD). The result revealed that the genotype Stock Katz Blue recorded the maximum plant height (72.00 cm) and internodal length (2.99 cm). The maximum number of leaves and leaf area was observed in the genotype Stock Katz Ruby (70.73 and 3199.94 cm2/plant, respectively). The minimum days taken to flower stalk emergence, first visible flower and harvest (43.60, 55.40 and 74.40, respectively) were recorded in Stock Katz Ruby. The maximum stalk length (93.93 cm), florets per stalk (32.07) and vase life (13.47 days) were recorded in Stock Katz Blue. The genotype Arrow White recorded the maximum number of cut flowers per sq. m (25.00) and number of cut flowers per 1000 sq. m (20000). Correlation studies revealed that plant height, leaf area and number of florets per stalk with stalk length; stalk girth with days taken for stalk emergence showed a significant positive correlation, whereas plant height, leaf area, intermodal length and stalk length showed significant negative correlation with days taken for stalk emergence. The number of cut flowers per sq. m exhibited highly positive direct effect of path coefficient analysis with the plant height, leaf area, number of florets per stalk and stalk girth. This suggests that these are the potential traits in improving the stalk quality and marketable flower yield.
  • ThesisItemOpen Access
    STUDIES ON EFFECTS OF DIFFERENT SOURCES AND LEVELS OF CALCIUM ON GROWTH, FLOWERING, QUALITY AND YIELD IN ASIATIC LILY (Lilium spp.)
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-12-18) KAMALASHREE, S. D; Dr. CHANDRASHEKAR. S. Y; Dr. SHIVAPRASAD. M
    An experiment entitled “Studies on effects of different sources and levels of calcium on growth, flowering, quality and yield in Asiatic lily (Lilium spp.)” was conducted at the experimental block (under naturally ventilated polyhouse) of the Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, under Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Iruvakki, Shivamogga during 2022-2023. The experiment was laid out in Randomized Complete Block Design (RCBD) consisting of thirteen treatments viz., T1 (control), T2 (30 g/m2 calcium ammonium nitrate), T3 (40 g/m2 calcium ammonium nitrate), T4 (50 g/m2 calcium ammonium nitrate), T5 (30 g/m2 calcium nitrate), T6 (40 g/m2 calcium nitrate), T7 (50 g/m2 calcium nitrate), T8 (100 g/m2 calcium oxide), T9 (200 g/m2 calcium oxide), T10 (300 g/m2 calcium oxide), T11 (20 g/m2 dolomite), T12 (30 g/m2 dolomite) and T13 (40 g/m2 dolomite) replicated thrice. The application of dolomite at 40 g/m2 (T13) recorded minimum days for bulb sprouting (3.73), maximum plant height (73.49 cm), number of leaves (60.47), leaf length (11.64 cm), leaf breadth (1.81 cm), leaf area (852.50 cm2), leaf area index (4.26), minimum days taken for flower bud initiation (29.80), first floret opening (54.53), 50 per cent flowering (61.33), maximum duration of flowering (17.33), maximum number of buds per spike (3.60), bud length (8.53 cm), bud diameter (21.64 mm), petal length (11.37 cm), petal breadth (4.37 cm), length of the flower stalk (71.85 cm), girth of the flower stalk (6.76 mm), weight of the flower stalk (68.82 g), vase life of flowers with and without anthers (8.17 and 9.55 days, respectively), number of bulbs per plant (3.26), weight of bulb per plant (64.40 g), diameter of bulb (8.60 cm) and number of bulblets per plant (5.80) with maximum B:C ratio of 2.76 compared to control. Hence, the application of dolomite at 40 g/m2 may be recommended for commercial cultivation of Asiatic lily.
  • ThesisItemOpen Access
    EFFECT OF FOLIAR APPLICATION OF BIOSTIMULANTS ON GROWTH, FLOWERING, QUALITY, FLOWER AND SEED YIELD OF ANNUAL CHRYSANTHEMUM (Chrysanthemum coronarium L.)
    (College of Horticulture, Mudigere, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, 2023-11-14) DEGALA JYOTHI VYSHNAVI; Dr. CHANDRASHEKAR. S. Y; Dr. HEMLA NAIK. B
    An experiment entitled “Effect of foliar application of biostimulants on growth, flowering, quality, flower and seed yield of annual chrysanthemum (Chrysanthemum coronarium L.)” was conducted at the experimental block of Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, under Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga during 2022-2023. The experiment was laid out in Randomized Complete Block Design (RCBD) consisting of ten treatments viz., T1 (Humic acid @ 0.4 %), T2 (Humic acid @ 0.6 %), T3 (Humic acid @ 0.8 %), T4 (Biovita @ 0.4 %), T5 (Biovita @ 0.6 %), T6 (Biovita @ 0.8 %), T7 (Biozyme @ 0.4%), T8 (Biozyme @ 0.6 %), T9 (Biozyme @ 0.8 %) and T10 (Control- water) replicated thrice. The plants were sprayed with biostimulants at 20, 40 and 60 days of transplanting. The treatment Biovita @ 0.6 % recorded maximum plant height (106.10 cm), plant spread E-W (58.84 cm) and N-S (60.58 cm), number of leaves (900.43), leaf area (16027.65 cm2/plant), leaf area index (17.81), total dry matter (110.95 g/plant), absolute growth rate (1.43 g/plant/day), crop growth rate (15.89 g/m2/day), specific leaf area (538.37 cm2/g), chlorophyll a, b and total chlorophyll content (1.01, 0.54, 1.55 mg/g fresh weight, respectively), minimum days taken for flower bud initiation (35.66), 50 per cent flowering (55.35), maximum duration of flowering (58.66 days), shelf life (3.66 days), number of flowers per plant (189.26), flower yield per hectare (69.18 tons) with maximum B:C ratio of 2.96 and 4.13 for flower and seed yield per hectare, respectively compared to control. The treatment Biozyme @ 0.8 % resulted in maximum quality parameters such as flower diameter (6.19 cm), number of petals per flower (72.28), flower weight (3.44 g) and seed yield per plant (45.02 g) and seed yield per hectare (27.25 quintals). Hence, foliar application of Biovita @ 0.6 % (at 20, 40 and 60 days after transplanting) may be recommended for commercial cultivation of annual chrysanthemum.
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