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Subject: Floriculture and Landscaping ×

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    ThesisItemOpen Access
    Variability and correlation studies in chrysanthemum (Chrysanthemum indicum)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2023-02-20) Akasha Shrimanta Malleda; Bhagat, V.V.
    The present investigation was undertaken to examine the variability studies in different chrysanthemum genotypes and to know extent of genetic variability present in the population. Correlation and path coefficient analysis between yield and its contributing traits and divergence studies were also done. The experiment entitled “Variability and correlation studies in Chrysanthemum (Chrysanthemum indicum) genotypes” was carried at the experimental field, Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during Rabi season 2021- 22. The experiment laid out in Randomised Complete Block Design with 31 treatments (genotypes) replicated twice. The analysis of data gave the significant difference for different traits and genetic variability studies showed presence of sufficient genetic diversity among the genotypes. The genotype Bidhan rajat showed maximum plant height (47.50 cm), leaf length (8.3 cm), leaf width (6.00 cm) and Leaf area (47.30cm²), Akita genotype exhibited higher Diameter of main stem (8.15 mm), Flower disc diameter (3.55cm) and Number of ray florets (510.5 ton). Agnishika recorded highest number of Primary branches (12), Secondar branches (61) and Number of flowers per plant (160). Flower yield per plant (286 g) and Flower yield per plot (3.4 kg) were found maximum in Salmon. Royal white took minimum days to first bud Initiation (56 days), minimum days to 50% flowering (69days) and highest flower head diameter (6.05 cm). Pusa Aditya recorded highest plant spread (42.25cm in E-W and 41.00 cm in N-S)). Bidhan purna recorded highest weight of flower head (2.86g), melody recorded highest number of disc florets (190), maximum shelf life recorded in Yellow Gold (5.5 days). Genetic variability study showed higher (>20%) genotypic coefficient of variance (GCV) and phenotypic coefficient of variance (PCV) were recorded for traits survival %, plant spread from east to west and north to south, leaf area, primary and secondary branches, flower disc diameter, number of ray florets, number of disc florets, number of flowers per plant, flower yield per plant, and plot, weight of flower head and shelf life. moderate (10-20%) recorded for plant height, diameter of stem, Leaf length, width, days to first bud incitation, days to 50% flowering, days to 100% flowering, and flower head diameter. The lowest (0-10%) was not recorded. The higher broad sense heritability (more than 60%) coupled with higher (20% and above) genetic advance as per cent mean (GAM) was recorded for almost all the parameters except days to 100% flowering, and flower head diameter, which showed higher heritability with moderate (10-20%) genetic advance as per cent mean. Correlation studies for various parameters among the genotypes recorded positive and significant phenotypic and genotypic correlation with plant spread from east to west and north to south, primary and secondary branches, leaf length, leaf width, area, Diameter of stem, weight of flower, shelf life, days to first bud initiation, 50% flowering and 100% flowering, Number of ray florets, flower yield per plant, and plot. In Path analysis for various attributes among the genotypes used in the investigation showed positive and direct effect for flower yield per plot both at phenotypic and genotypic levels was seen with survival %, plant spread east to west, diameter of stem, days to 100% flower and flower yield per plant. In divergence studies all the 31 genotypes used were grouped into 5 clusters by the considerable divergence among the genotypes. The cluster I was biggest with 20 genotypes while the cluster II with 8 genotypes and cluster III, IV and V was solitary by Tocher method. The intra cluster distance between the cluster’s ranges from 0.00 to 1281.00 and intercluster distance is maximum 5361.23. Yield of flower per plant trait contributed maximum divergence. The study concludes presence of genetic diversity in the population and can be used for future breeding programs.
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    ThesisItemOpen Access
    Studies on effect of different rooting hormones on stem cutting of croton (Codiaeum variegatum)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2022-11-30) Tangawade, Onkar Pandit; Baghele, R.D.
    The present investigation on “Studies on effect of different rooting hormones on stem cutting of croton (Codiaeum variegatum)’’ was carried out at Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during the year 2021-22. The experiment was laid out in CRD (Completely Randomized Design) with ten treatment combinations replicated thrice. Each replication consisted of 20 cuttings. Fresh branches were collected from 3-4 years old healthy plant of Codiaeum variegatum grown at the college nursery. All the branches were removed from the semi-hardwood branches after which they were cut into 15 cm long segments with 6-8 nodes. A slant cut was given at the base of the cuttings. IAA, IBA and NAA were used as a rooting hormones. The experiment consists of three different concentrations of IAA (500 ppm, 1000 ppm and 1500 ppm), IBA (500, 1000 ppm and 1500 ppm) along with control. The method adopted for treatment of cuttings with growth regulator solution with the help of quick dip method. In which, the basal end of the prepared cuttings were kept standing in solution of growth regulator to a depth of 2.5-3.0 cm for 2 to 5 minutes. Semi hardwood cuttings of croton were planted in polybags containing one part of red soil, two parts of sand and one part of FYM. Among the treatments of plant growth regulators, IBA 1000 ppm recorded early sprouting (20.20), early root formation (17.61), maximum success percentage (78.86%), less mortality percentage (21.14%), maximum number of shoots (3.22), maximum number of roots (14.86, 26.75) at 30 and 60 days after planting respectively, highest length of shoot (4.06 cm), highest length of root (2.22, 4.58 cm ) at 30 and 60 days after planting respectively, maximum number of leaves (12.85), highest plant height (21.28 cm), maximum fresh weight of shoot (10.41 g), maximum fresh weight of root (5.95 g), maximum dry weight of shoot (4.48 g), maximum dry weight of root (2.36 g), highest root: shoot ratio (0.68), highest survival percentage (81.66%) and highest B:C ratio (3.80). On the basis of the result obtained from the investigation, it can be concluded that the croton (Codiaeum variegatum) can be propagated through semi hardwood cuttings soaked for quick dip method in the solution of IBA at 1000 ppm and planted in red soil + sand + FYM under shade net house which was the most effective to improving root as well as shoot parameters.
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    ThesisItemOpen Access
    Effect of induced mutation on different varieties of chrysanthemum (Chrysanthemum indicum L.)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-10-25) Palekar, Abhishek Rajendra; Tambe, T.B.
    The present experiment entitled “Effect of induced mutation on different varieties of Chrysanthemum (Chrysanthemum indicum L.)” was conducted at Department of Horticulture, VasantraoNaikMarathwadaKrishiVidyapeethParbhani.(Maharashtra) during the year 2019-2020 and 2020-21. The first experiment of M1 generation was carried out in Factorial Randomized Block Design (FRBD) of three replications. However, the second experiment of M2 generation was carried out in progeny rows planting. The present work was undertaken to observe the response of chrysanthemum varieties V1-Pink Cloud,V2- Devi and V3-Bidhan Agnisikha over EMS T1 -0.05%, T2 -0.1%, T3 -0.5%, T4 -1.0%, T5- Gamma rays 0.5 kR, T6 -1.0 kR, T7 -1.5 kR, T8 -2.0 kR, T9 - Control treatments. The different treatments to rooted cuttings of chrysanthemum varieties with EMS and gamma rays had significantly influenced the vegetative and flowering characters and also created the variability. Significant reduction occurred in both EMS and gamma rays treated seedlings of chrysanthemum varieties in terms of survival of plant, plant height, branches plant-1, plant spread,diameter of main stem, leaf area, chlorophyll content index, number of flowers, yield of flowers plant-1, weight of single flower and diameter of flower. The higher dose of EMS and gamma rays delayed the flower bud initiation, flower formation and 50% flowering as well as increased the leaf and flower abnormalities, mutation spectrum and frequency percentage of mutant in M1 and M2 generation. The 1.0, 1.5, 2.0 KR doses of gamma rays and 0.5, 1.0% EMS had induced stable and desirable mutants of commercial importance viz. change of flower colour (dark red colour and yellow colour mutants), late mutant, large flower (suitable for cut flower production) and dwarf plant mutant (suitable for potted plant and bedding purpose).
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    ThesisItemOpen Access
    Performance of chrysanthemum (Dendranthema grandiflora L.) varieties under parbhani condition of Maharashtra
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-11-25) Kadam, Shital Manchakrao; Khandare, V.S.
    The present experiment entitled “Performance of chrysanthemum (Dendranthema grandiflora L.) varieties under Parbhani condition of Maharashtra” was conducted at Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth Parbhani (Maharashtra) during the year 2019 -2020 with an objective to study the performance of chrysanthemum varieties for growth, flowering, yield and vase life. The experiment was laid out in Randomized Block Design with twenty two treatments which replicate twice. The treatment consist of twenty two varieties of chrysanthemum viz. T1-Devi, T2-Himani-3, T3-Laliput, T4-Little Pink, T5-Kirti Gold, T6-Basanti, T7-Bidhan Neeta, T8-Jessica, T9-Yellow Gold, T10-Chandani, T11-Jaya, T12-Royal White, T13-Vijay, T14-Lalima, T15-Aparajita, T16-Panjab Gold, T17-Honey Comb, T18-Bidhan Gold, T19-Pusa Aditya, T20-Bidhan Tarun, T21-Cherabu, T22-Bidhan Madhuri. The results obtained from the present investigation in respect of growth characters, among the different varieties, minimum plant height, number of branches, stem diameter, plant spread, leaf area and number of leaves per plant were recorded in the treatment Bidhan Neeta whereas maximum plant height and plant spread were recorded in Royal White, highest number of branches was recorded in Bidhan Madhuri, maximum leaf area was recorded in Devi, highest no. of leaves was recorded in Himani-3. The results obtained from the present investigation in respect of flowering attributes, among the different varieties, the minimum days to first flower bud initiation was recorded in Bidhan Neeta, days to fully opened flower was recorded in little Pink, days to 50% flowering was recorded in Jessica whereas the maximum days to first flower bud initiation was recorded in Panjab Gold, days to fully opened flower was recorded in Vijay, days to 50% flowering was recorded in Cherabu and highest blooming period was recorded in Little Pink. The results obtained from the present investigation in respect of yield attributes, among the different varieties, the highest number of flowers, and yield per plant, plot and hectare were recorded in Bidhan Tarun whereas the lowest number of flowers, yield per plant, plot and hectare were recorded in the treatment Pusa Aditya. The results obtained from the present investigation in respect of quality attributes, among the different varieties, the maximum weight of single flower was recorded in Little Pink, diameter of flower was recorded in Royal White and disc Diameter of flower was recorded in Bidhan Neeta whereas the minimum weight of single flower was recorded in Jessica, diameter of flower and disc diameter of flower was recorded in Laliput. The results obtained from the present investigation in respect of vase life attributes, among the different varieties, the maximum vase life of flower was recorded in Bidhan Gold, maximum leaf wilting and yellowing percentage were observed in Basanti, maximum percentage of leaf browning, weight loss and initial flower weight were observed in Little Pink, final flower weight was observed in Bidhan Tarun, initial and final flower diameter were observed in Royal White whereas minimum vase life of flower was observed in Jessica, leaf wilting percentage was observed in Himani-3, browning percentage was observed in Bidhan Gold, initial flower weight was observed in Laliput, minimum initial and final flower diameter was recorded in Aparajita. Considering the all growth, flowering, yield, quality and vase life parameters, it may be concluded that among the twenty two varieties of chrysanthemum Royal White, Bidhan Madhuri, Bidhan Tarun, Bidhan Gold, Cherabu, Devi, Little Pink, Basanti, Chandani, Honey Comb, Vijay, Panjab Gold and Himani-3 were found most suitable varieties in Parbhani condition.
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    ThesisItemOpen Access
    Effect of foliar application of GA3 on calendula (calendula officinalis L.)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-11-16) Jambutkar, Suresh Sahebrao; Baghele, R.D.
    An experiment entitled, "Effect of foliar application of GA3 on Calendula" (Calendula officinalis L.) was carried out during rabi season of the year 2020-21 at the College of Agriculture, VNMKV Parbhani. The experiment was laid out in Randomized Block Design with seven treatments of foliar application of GA3-100 ppm, GA3-150 ppm, GA3-200 ppm, GA3-250 ppm, GA -300 ppm GA3-350 ppm and control (water spray) replicated thrice. It is evident from the experimental findings that, in terms of growth parameters the maximum height of plant was noticed under the foliar application of GA3-350 ppm. However, the number of primary branches plant-1 and diameter of flower were observed maximum when plant were sprayed with GA3-350 ppm. As regards flowering parameters, early flower bud emergence, opening of flower from first flower bud emergence, days to 50% flowering, was obtained under foliar application of GA3 350 ppm. The yield and yield contributing characters in respect of number of flowers plant-1, yield of flowers plant-1, plot-1 and hectare-1, was found superior with the foliar application of GA3, 350 ppm. Flower quality parameters in terms of diameter of flower, weight of flower and vase life of flower were found maximum under foliar application of GA3 350 ppm.
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    ThesisItemOpen Access
    Studies on morphological characters of french marigold (tagetes patula L.) genotypes
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-07-13) Priya Bhusaraddi; Bhagat, V.V.
    The present investigation was undertaken to examine the morphological characters of different French marigold genotypes and to know extent of genetic variability present in the population. Correlation and path coefficient analysis between yield and its contributing traits and divergence studies were also done. The experiment entitled “Studies on morphological characters of French marigold (Tagetes patula L.) genotypes” was carried at the experimental field, Department of Floriculture and Landscape Architecture, College of Horticulture, UHS Bagalkot, during Rabi season 2020-21. The experiment laid in Randomised Complete Block Design with 25 treatments (genotypes) replicated twice. The analysis of data gave the significant difference for different traits and genetic variability studies showed presence of sufficient genetic diversity among the genotypes. The genotype Pusa Arpita showed maximum plant height (50.54 cm), stem girth (13.35mm), number of primary branches (22.4), leaf length (18.87 cm), leaf width (14.10 cm) and shelf life (4.95 days), IIHRFm-411 genotype exhibited higher plant spread (55.57 cm in E-W and 52.27 cm in N-S), number of secondary branches (44.5), flower yield per plant (392.10 g), per plot (10.19 kg) and flower yield per ha (16.01 ton). Pusa Deep recorded highest number of flowers per plant (170.7), individual flower weight (4.27 g) and flower diameter (45.03 mm) were found maximum in IC-250322-01. UHSFm-10 took minimum days to first flower appearance (26.5 days), UHSFm-8 recorded minimum days to 50% flowering (32.5 days) and flowering duration maximum in IC-250322 (49 days). Genetic variability study showed higher (> 20%) GCV and PCV were reported for traits plant height, plant spread from east to west and north to south, leaf length, width, stem girth, flower yield per plant, plot and per hectare, individual flower weight and shelf life. The higher broad sense heritability (>60%) coupled with higher (20% and above) genetic advance as percent mean (GAM) was recorded for almost all the parameters except flowering duration. The significant positive correlation was reported with plant height, plant spread from east to west and north to south, primary and secondary branches, leaf length, leaf width, stem girth, individual flower weight, shelf life, days to first flowering, 50% flowering and flower yield per plant, plot and hectare. In path analysis direct positive association for flower yield per plot was seen with traits plant spread north to south, number of primary and secondary branches per plant, leaf width, individual flower weight, flower diameter, shelf life, number of flowers per plant, days to 50% flowering, duration of flowering, flower yield per plant and flower yield per hector. In divergence studies all the genotypes were grouped into 2 Clusters, Cluster Ⅰ had 24 genotypes indicates maximum variability while another cluster with 1 genotype. The maximum intra cluster distance (85.20) and inter-cluster distance (352.39). Flowering duration trait contributed maximum divergence. The study concludes presence of genetic diversity in the population and can be used for future breeding programs.
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    ThesisItemOpen Access
    Study of M4 generation in chrysanthemum (chrysanthemum indicum L.)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-07-09) Solapure, Satish Laxman; Baghele, R.D.
    Mutation breeding is considered to be economic and competent in plant improvement and the use of chemical mutagens such as Ethyl methanesulfonate (EMS) and colchicine can potentially address plant breeding challenges. It is also an important tool in the generation of ornamental plant variety. A novel technique has been developed for management of floral chimeric sector in chrysanthemum. Chrysanthemum is commercially cultivated as a cut flower, loose flower and pot plant. To develop a novel variety with ornamental value, mutations were induced. The objective of the present study was to induce morphological mutants in Chrysanthemum (Chrysanthemum indicum L.) using EMS and colchicine treatments with different doses and to analyze the morphological and physiological traits of obtained mutants in expectation of finding constructive mutants in VM4 generation. The experiment was carried out in progeny rows planting. The cuttings taken from VM3 progenies are used to raise VM4 population. The results revealed significantly in VM4 population that reduction occurred with increasing of colchicine and EMS doses in VM4 population of Chrysanthemum variety in terms of plant height, branches plant-1, plant spread, diameter of main stem, number of flowers plant-1, yield of flowers plant-1, and vase life of cut flowers. Whereas leaf area, weight of single flower and diameter of flower were increased due to the colchicine and decreased due to EMS treated population of Chrysanthemum variety over control. But in some concentrations coefficient variation has been decreased where the mean has remained almost unchanged in VM4 as compared to the VM3 generation. The VM4 population shows delayed the flower bud initiation, flower formation and 50 per cent flowering as well as decrease in the spectrum and percentage of mutant except flower colour. The colchicine 0.02 per cent (T1), colchicine 0.03 per cent (T2), EMS 0.05 per cent (T3), EMS 0.1 per cent (T4), EMS 0.5 per cent (T5), EMS 1.0 per cent (T6) and EMS 1.5 per cent (T7) had induced stable and desirable mutants of commercial importance viz. change of flower colour as well as early flowering mutant, late flowering mutant and dwarf plant mutant. Apart from this some branching mutants and long stem mutants didn’t followed the definite trend in VM4 generation and it is also observed that the adverse effects of chemical mutagens were getting mild in VM4 generation.
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    ThesisItemOpen Access
    Effect of growth retardants on growth, yield and vase life of chrysanthemum (dendranthema grandiflora L.)
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2021-06-17) Gobade, Nilima Jairam; Waghmare, G.M.
    The present experiment entitled “Effect of growth retardants on growth, yield and vase life of chrysanthemum (Dendranthema grandiflora L.)” was conducted at Department of Horticulture, Vasantrao Naik Marathwada Krishi Vidyapeeth Parbhani.(Maharashtra) during the year 2018-19 and 2019-20 with an objective to find out the suitable growth retardants for dwarfing effect on chrysanthemum, to find out the suitable growth retardant for growth, flowering and yield and to study the flowering behavior and vase life of chrysanthemum flowers. The experiment was laid out in Factorial Randomized Block Design with two factors (factor A and factor B) replicated thrice. Factor A consist of three varieties viz., V1 - Raja Pandharpuri, V2 - Brown, and V3 - Shinaton and factor B consist of ten growth retardants treatment viz., R0 - Control (water spray), R1 - CCC 1000 ppm, R2 - CCC 1500 ppm, R3 - CCC 2000 ppm, R4 - PP333 100 ppm, R5 - PP333 200, R6 - PP333 300, R7 - MH 500 ppm, R8 - MH 750 ppm and R9 - MH 1000 ppm. Experiment was conducted with 30 (thirty) treatment combinations. The application of growth retardants was done with two foliar sprays, first spray was done at 30 days and second at 45 days after transplanting. The results obtained from the present investigation in respect of growth characters, among the different varieties, minimum plant height (35.12, 33.86 and 34.49 cm, respectively) was recorded with the variety in Brown. Whereas, maximum number of branches plant-1 (40.55, 39.85 and 40.20, respectively), stem diameter (0.90, 0.87 and 0.89 cm, respectively), plant spread (43.50, 42.23 and 42.86 cm, respectively) and number of leaves plant-1 (279.71, 276.61 and 278.16, respectively) were recorded in cv. Shinaton and maximum leaf area (35.81, 34.35 and 35.08 cm2, respectively) was recorded with the variety Raja Pandharpuri. As regards the different growth retardants treatment, minimum plant height (38.46, 37.09 and 37.78 cm, respectively), maximum number of branches plant-1 (35.68, 34.79 and 35.24, respectively), stem diameter (0.83, 0.79 and 0.81 cm, respectively), plant spread (40.92, 39.69 and 40.30 cm, respectively), leaf area (35.13, 33.12 and 34.13 cm2, respectively) and number of leaves plant-1 (208.60, 205.68 and 207.13, respectively) were recorded with foliar application of MH at 1000 ppm was recorded when sprayed at 30 and 60 days after transplanting. In respect of floral characters, earliest first flower bud initiation from transplanting (65.60, 64.73 and 65.17 days, respectively), minimum days to fully opened flower from bud emergence (24.40, 22.79 and 23.59 days, respectively) and days to 50 per cent flowering from transplanting (96.61, 95.86 and 96.23 days, respectively) were recorded in cv. Raja Pandharpuri, whereas, maximum blooming period (47.05, 44.95 and 46.00 days, respectively) was recorded in cv. Shinaton. In respect of different growth retardants treatment, earliest first flower bud initiation from transplanting (69.10, 67.85 and 68.48 days, respectively), minimum days to fully opened flower from bud emergence (23.24, 21.56 and 22.40 days, respectively) and days to 50 per cent flowering from transplanting (104.90, 104.07 and 104.48 days, respectively) were recorded in control. However, maximum blooming period (50.35, 48.12 and 49.23 days, respectively) was noticed in the treatment foliar application with MH at 1000 ppm. The yield and yield contributing characters viz., number of flowers plant-1 (163.00, 160.66 and 161.83, respectively), maximum flower yield plant-1 (358.15, 344.31 and 351.23 g, respectively), maximum flower yield plot-1 (11.46, 11.02 and 11.24 kg, respectively) and yield ha-1 (265.30, 255.04 and 260.17 q, respectively) were recorded in treatment combination of the variety Shinaton with foliar application of MH at 1000 ppm. In respect of quality parameters, the weight of single flower (2.77, 2.72 and 2.74 g, respectively), flower diameter (5.89, 5.37 and 5.63 cm, respectively) were found maximum with the variety Shinaton, whereas maximum disc diameter (1.46, 1.41 and 1.44 cm, respectively) was noticed with the variety Raja Pandharpuri. In respect of different growth retardants treatment, the weight of single flower (2.52, 2.47 and 2.50 g, respectively), flower diameter (5.74, 5.15 and 5.44 cm, respectively) and disc diameter (0.99, 0.94 and 0.97 cm, respectively) were found maximum with foliar application of cycocel at 2000 ppm. As far as the vase parameters are characters, maximum vase life (9.42, 8.62 and 9.02 days, respectively), initial flower weight (4.75, 4.41 and 4.58 g, respectively), final flower weight (6.91, 6.28 and 6.60 g, respectively), weight gain/loss (45.40, 43.28 and 44.34 %, respectively), initial flower diameter (5.89, 5.37 and 5.63 cm, respectively), final flower diameter (7.23, 6.45 and 6.85 cm, respectively) and minimum leaf wilting (9.37, 8.27 and 8.82 %, respectively) were recorded in variety Shinaton. However, leaf yellowing (6.47, 5.68 and 6.08 %, respectively) and leaf browning (17.75, 16.45 and 17.10 %, respectively) were recorded in variety Brown. In respect of different growth retardants treatment, the vase life (9.80, 9.04 and 9.42 days, respectively), initial flower weight (4.58, 4.25 and 4.41 g, respectively), final flower weight (6.69, 6.06 and 6.37 g, respectively) initial flower diameter (5.74, 5.15 and 5.44 cm, respectively) and final flower diameter (7.31, 6.27 and 6.79 cm, respectively) were found maximum with foliar application of cycocel at 2000 ppm. Whereas, leaf wilting (10.24, 9.20 and 9.72 %, respectively), leaf yellowing (8.88, 8.22 and 8.55 %, respectively) and leaf browning (18.45, 17.11 and 17.78 %, respectively) were found minimum with foliar application of cycocel at 2000 ppm. Cost: benefit ratio (4.51, 4.34 and 4.43, respectively) were recorded maximum with variety Shinaton and foliar application of MH at 1000 ppm. In relates to growth, flowering, yield, quality and vase character, Shinaton variety is showed best performance. In relates to treatment, MH at 1000 ppm showed best performance in all parameters except quality and vase parameters.
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    ThesisItemOpen Access
    Studies on putative mutants of chrysanthemum [Chrysanthemum indicum L.]
    (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2020-09-30) Adsure, Deepak Dattatray; Shinde, S.J.
    Mutation breeding is considered to be economic and efficient in plant improvement and the use of chemical mutagens such as ethyl methane sulfonate (EMS) and colchicine can potentially address plant breeding challenges. The aim of this study was to induce morphological mutants in Chrysanthemum (Chrysanthemum indicum L.) using EMS and colchicine treatments with different doses and to analyze the morphological and physiological traits of obtained mutants in expectation of finding favorable mutants in VM3 generation. The experiment was carried out in progeny rows planting. The cuttings taken from VM2 progenies are used to raise VM3 population. The results in VM3 population shows that thereby reduction occurred with increasing of colchicine and EMS doses in VM3 population of chrysanthemum varieties in terms of plant height, branches plant-1, plant spread, diameter of main stem, number of leaves plant-1, number of flowers plant-1, yield of flowers plant-1, number of ray florets flower-1, and vase life of cut flowers. Whereas leaf area, weight of single flower and diameter of flower were increased due to the colchicine and decreased due to EMS treated population of chrysanthemum varieties over control. But in some concentrations coefficient variation has been decreased whereas the mean has remained almost unchanged in VM3 as compared to the VM2 generation. The VM3 Population shows delayed the flower bud initiation, flower formation and 50 per cent flowering as well as decrease in the spectrum and percentage of mutant except flower colour. The colchicine 0.02 per cent (T2), colchicine 0.03 per cent (T3), EMS 0.05 per cent (T5), EMS 0.1 per cent (T6), EMS 0.5 per cent (T7), EMS 1.0 per cent (T8) and EMS 1.5 per cent (T9) had induced stable and desirable mutants of commercial importance viz. change of flower colour as well as early flowering mutant, late flowering mutant and dwarf plant mutant. Apart from this some branching mutants and long stem mutants didn’t followed the definite trend in VM3 generation and it is also observed that the adverse effects of chemical mutagens were getting mild in VM3 generation.