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Subject: Horticulture × End date: 2013 × Start date: 2013 × Type: Thesis ×
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    ThesisItemOpen Access
    Impact of herbal extracts on microbial vascular plugging, quality and longevity of cut roses Konfetti and Bordeaux
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-12) Anisha, P.N.; Santosh Kumar
    The present investigation was carried out at the Model Floriculture Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, during 2011-12 and 2012-13 to study the impact of herbal extracts on the microbial vascular plugging, quality and longevity of cut roses Konfetti and Bordeaux. The major cause of vase life reduction in cut flowers is water relation interruption which is mostly due to vase solution microbial proliferation and consequently vascular occlusion resulting in solution uptake reduction. The microbial vascular plugging of cut roses Konfetti and Bordeaux was confirmed through the findings from SEM. A broad range of chemical biocides has been suggested to prevent the proliferation of microorganisms in vase solutions. In order to replace chemicals with natural compounds as antimicrobial preservatives used in solutions for cut flowers five herbal extracts namely, Curcuma longa, Azadirachta indica, Piper betle, Ocimum sanctum and Allium sativum were assessed for their antimicrobial properties against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Mucor sp. and Rhizopus sp. isolated from vase solution of cut roses. Among these betel leaf had the highest zone of inhibition against all these microorganisms and its MIC was found to be 2%. Further, in order to compare the in-vivo efficacy of betel leaf extract with 8-HQC as well as to assess the effect of betel leaf extract on quality and longevity of both the cultivars of rose in holding and pulsing solutions, experiments were laid out in Factorial CRD. 2% sucrose + 2% betel leaf extract and 6% sucrose + 2% betel leaf extract were respectively the best among the holding and pulsing solutions. They improved the vase life, water relations, fresh weight, flower diameter and chlorophyll content compared to 8-HQC. Among the cultivars Bordeaux showed better response in improvement of quality and longevity. Thus it is evident from this study that betel leaf extract can be used as an organic biocide in the vase solutions for the improvement of quality and longevity of cut roses.
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    ThesisItemOpen Access
    Response of potato (Solanum tuberosum L.) to irrigation and mulching
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Narolia, Rajeev Kumar; Manoj Raghav
    The present investigation was undertaken at Vegetable Research Centre of Govind Ballabh Pant University of Agriculture and Technology Pantnagar during rabi season of years 2010-11 and 2011-2012 to study the “Response of potato (Solanum tuberosum L.) to irrigation and mulching”. The experiment was laid out in Split Plot Design with three replications consisting total 18 treatment combinations of two factors viz., 3 irrigation levels viz. I1: 50 mm CPE, I2: 100 mm CPE and I3: 150 mm CPE and 6 mulch treatments viz. Black polythene mulch (25 μm), Sugarcane leaves mulch (2.5 cm thickness), Sugarcane leaves mulch (5 cm thickness), Paddy straw mulch (2.5 cm thickness), Paddy straw mulch (5 cm thickness) and Control (without mulch). The response of potato to irrigation and mulching treatments were measured in terms of quantitative expression i.e., plant emergence (%), plant height, number of haulms per hill, number of leaves per hill, grade wise number of tubers, total number of tubers, grade wise yield of tubers, total tuber yield and moisture utilization pattern i.e., soil moisture content at various depth of soil, water use efficiency and number of irrigation and water applied. Economics of the various treatments were also worked out. On the basis of the observations, it can be concluded that the response of irrigation at 50 mm CPE resulted better growth and yield of potato tubers. Sugarcane leaves and paddy straw mulch, irrespective their thickness was recorded more beneficial for growth attributes. Sugarcane leaves mulch (2.5 cm thickness) and paddy straw mulch (2.5 cm thickness) produced maximum number of tubers and gave higher yield of potato tubers than black polythene and without mulch. The moisture status was higher when irrigated at 50 mm CPE under sugarcane leaves mulch (5 cm thickness). Irrigation at 50mm CPE with organic mulch had more water use efficiency than inorganic mulch. One irrigation along with 30.09 mm depth of water applied under organic mulch found better results. On the basis of economics, both sugarcane leaves mulch (2.5 cm thickness) and paddy straw mulch (2.5 cm thickness) gave maximum gross returns, net returns and B:C ratio.
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    ThesisItemOpen Access
    Effect of growing media and integrated nutrient management on growth and flowering of rose cv. ‘Grand Gala’ under naturally ventilated polyhouse
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-01) Raghuvanshi, Ajay; Santosh Kumar
    The present investigation entitled “Effect of growing media and integrated nutrient management on growth and flowering of rose cv. ‘Grand Gala’ under naturally ventilated polyhouse was conducted at Agroforestry Research Centre, G.B. Pant University of Agriculture & Technology, Pantnagar during 2009 and 2010. For the experiment four growing medium viz., soil + vermicompost + sand (G1), soil + vermicompost + cocopeat (G2), soil + vermicompost + sawdust (G3) and soil + vermicompost + rice husk (G4) mixed in the ratio of 1:1:1 (v/v) and three fertilizers sources viz., F1 (150 ppm of N and 200 ppm of K through water soluble fertilizers), F2 (150 ppm of N and 200 ppm of K through commercial straight fertilizers) and F3 (Biofertilizers (VAM +Azospirillum + Phosphate solubilizing microorganisms) + F1) were used. Total numbers of treatments were twelve with three replication of each treatment. Experimental design was CRD two Factorial with all factorial combination of four growing media and three fertilizers combination. Among twelve treatment combinations, treatment T12 consisting of soil + vermicompost + rice husk fertigated with biofertilizers + water soluble fertilizers (G4F3) found best treatment for most of the parameters viz., earliness for flower bud appearance and bud appearance to harvesting , bud length, flower size weight of flower stem, flower yield/m2/flush and flower yield per year Whereas, maximum plant height, leaf area, pedicel length ‘A’, ‘B’ grade flowers were recorded in T9.. Treatment 1 containing soil + vermicompost + sand and water soluble fertilizers (G1F1) was found inferior in almost all aspects of the vegetative as well as floral attributes during present experiment.
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    ThesisItemOpen Access
    Response of pulsing, wrapping materials and antitranspirants on the postharvest attributes of cut rose cv.naranja
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-10) Punetha, Parul; Shant Lal
    The present investigation was carried out at Model Floriculture Centre, Department of Horticulture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, during the year 2010-11 to 2011-12 to study the effect of pulsing solutions, wrapping materials and antitranspirants on the post harvest life of rose cv. Naranja. During the course of study, flowers of uniform length i.e. 40 cm were used at tight bud stage. The experiments were laid out in Completely Randomized Design and replicated thrice. Pulsing treatments comprised of 12 and 24 hour pulsing duration and three different chemicals (STS, 8-HQC and chlorine) which were tested alone in different concentrations and in combination with sucrose also. Studies revealed that flowers pulsed with sucrose 5% + 8-HQC 200 ppm for 24 hrs was the best treatment and helped the stems to maintain better water relation in terms of water uptake, water balance, total sugars, appearance score which consequence the maximum vase life of 10.50 days as compared to control (4.02 days). Wrapping materials viz. Cellophane, polypropylene, Newspaper, LDPE (100 gauge), LDPE (200 μ) and Butter paper were used and then stored at 4˚C for five durations i.e., 0, 3, 6, 9 and 12 days. The studies revealed that wrapping the flowers in LDPE (100 gauge) proved promising in augmenting the keeping quality of flowers. The keeping quality of unpackaged flowers were highly deteriorated and decreased with increase in storage duration. Another experiment on the standardization of antitranspirant solution was performed, in which all the antitranspirant treatments (Glycerol, MgCO3, Paclobutrazol) significantly increased the vase life over control, but out of the different treatments, spraying of glycerol 8% delayed the process of flower opening, slow down the rate of stomatal conductance, decrease the water loss and prolong the vase life of cut rose cv. Naranja. Thus the present investigation revealed that out of the different treatments, effect of wrapping materials was found to be beneficiary to enhance the vase life of cut rose cv. Naranja.
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    ThesisItemOpen Access
    Response of modified growing media and nutrition on Rose cv.Grand Gala under protected conditions”
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-06) Bisht, Deepti; Singh, C.P.
    The present investigation was carried out at the Model Floriculture Research Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar (Uttarakhand) during September, 2011 to April, 2013 to find out suitable growing substrates and optimum nutritional dose for quality flower production of rose grown under protected conditions. Five growing medium viz., soil + FYM (G1), soil + vermicompost (G2), soil + cocopeat (G3) and soil + rice husk (G4) and soil (control) (G5) mixed in the ratio of 2:1 (v/v) and four fertilizers sources viz., F1 (50 ppm of NPK, water soluble fertilizers), F2 (100 ppm of NPK, water soluble fertilizers) and F3 (150 ppm of NPK water soluble fertilizers) were used. Total numbers of treatments were twenty with three replication of each treatment along with six plants/bed of 1m2 sizes and total numbers of beds were 60. Experimental design was CRD two Factorial with all factorial combination of five growing media and four fertilizers combination. Among twenty treatment combinations, treatment consisting of soil + vermicompost along with 150 ppm NPK and their interactions were found best treatment for most of the parameters viz., maximum plant height, leaf area, leaf length, leaf width, number of flowers/bed/year, flower bud length, flower diameter, vase life of flowers and total stem length. Treatment containing soil and no fertilizers and their interaction (G5F4) were found inferior in almost all aspects of the vegetative as well as floral attributes during present experiment.
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    ThesisItemOpen Access
    Response of time of shoot pruning in meadow orchard of guava (Psidium guajava L.) cv Pant
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-08) Sah, Hariom; Shant Lal
    The present investigation was carried out during the year 2010-11 and 2011-12 at orticulture Research Centre, Patharchatta, Department of Horticulture, G.B.P.U.A.T., Pantnagar, Uttarakhand, to study the response of time of shoot pruning in meadow orchard of guava (Psidium guajava L.) cv Pant Prabhat. Two years old meadow orchard of guava plants was taken for this investigation. The treatments consisted of seven different combinations of time of half shoot pruning viz., pruning in April (T1); pruning in July (T2); pruning in October (T3); pruning in April and July (T4); pruning in April and October (T5); pruning in July and October (T6); pruning in April, July and October (T7) and one control (T8). In this way there were eight treatments replicated four times in Randomised Block Design with two plants as a treatment unit. Findings revealed that time of half shoot pruning significantly influenced the cropping pattern of guava. Half shoot pruning in April, July and October (T7) have positive effect towards managed plant growth and vigour viz., plant height, plant spread, plant volume and shoot growth. Treatment T7 (PAJO) gave minimum annual increase in plant height, plant spread, plant volume and maximum number of flower buds/plant. Half shoot pruning in April (T1) gave lesser rainy season yield. On the other hand, during winter season, it gave more number of flower buds/ plants and fruit yield with heavier weight of fruit. Lowest yield was recorded with control plants in winter season. The treatment T7 (PAJO) was found superior in terms of fruit size, fruit weight, TSS, ascorbic acid and sugars content. The nitrogen, phosphorus and potassium content of guava leaves revealed that none of the treatments affected N, P and K content of guava leaves significantly. On the basis of results, it can be concluded that cropping pattern, fruit yield and quality of guava fruits can be influenced by time of half shoot pruning. For obtaining maximum winter season yield and profit from meadow orchard of guava, Half shoot pruning should be done in the last week of April.
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    ThesisItemOpen Access
    Response of time of shoot pruning in meadow orchard of guava (Psidium guajava L.) cv Pant
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-08) Sah, Hariom; Shant Lal
    The present investigation was carried out during the year 2010-11 and 2011-12 at orticulture Research Centre, Patharchatta, Department of Horticulture, G.B.P.U.A.T., Pantnagar, Uttarakhand, to study the response of time of shoot pruning in meadow orchard of guava (Psidium guajava L.) cv Pant Prabhat. Two years old meadow orchard of guava plants was taken for this investigation. The treatments consisted of seven different combinations of time of half shoot pruning viz., pruning in April (T1); pruning in July (T2); pruning in October (T3); pruning in April and July (T4); pruning in April and October (T5); pruning in July and October (T6); pruning in April, July and October (T7) and one control (T8). In this way there were eight treatments replicated four times in Randomised Block Design with two plants as a treatment unit. Findings revealed that time of half shoot pruning significantly influenced the cropping pattern of guava. Half shoot pruning in April, July and October (T7) have positive effect towards managed plant growth and vigour viz., plant height, plant spread, plant volume and shoot growth. Treatment T7 (PAJO) gave minimum annual increase in plant height, plant spread, plant volume and maximum number of flower buds/plant. Half shoot pruning in April (T1) gave lesser rainy season yield. On the other hand, during winter season, it gave more number of flower buds/ plants and fruit yield with heavier weight of fruit. Lowest yield was recorded with control plants in winter season. The treatment T7 (PAJO) was found superior in terms of fruit size, fruit weight, TSS, ascorbic acid and sugars content. The nitrogen, phosphorus and potassium content of guava leaves revealed that none of the treatments affected N, P and K content of guava leaves significantly. On the basis of results, it can be concluded that cropping pattern, fruit yield and quality of guava fruits can be influenced by time of half shoot pruning. For obtaining maximum winter season yield and profit from meadow orchard of guava, Half shoot pruning should be done in the last week of April