Four Trichoderma species with known biocontrol activity (T. harzianum, T. hamantum, T. viride and T. virens) were tested for their efficacy against Cephalosporium acremonium, a causal organism of Black bundle disease in maize. Interactions between the fungi were assessed in vitro to study mutual antagonisms. Among the four bio-agents, T. hamantum proved to be promising which showed maximum inhibition (51.3%) followed by T. virens (45.2%), T. harzianum (44.6%) and T. viride (20.3%). T. hamantum was also found to be hyperparasite on C. acremonium whereas, T. harzianum and T. viride showed mycelial deformation. The volatile toxicants released by all the Trichoderma spp. were inferior in inhibiting the growth of C. acremonium when compared to the control as evident by inverted plate technique. The results of in vivo experiments confirmed the results from the in vitro study and showed that all the four bio-agents significantly reduced the disease incidence of Black bundle disease.
In present study various fungicides were screened against blast (leaf and neck) and sheath blight disease of rice. Among them, Conika 50% WP (Kasugamycin 5% + Copper Oxychloride 45% WP), Dhanucop Team (Tricyclazole 75% WP) and RIL-068/F1 48 WG (Kresoxim methyl 40% + Hexaconazole 8% WG) were found effective against blast diseases. While, the seed treatment fungicide Isotianil SC 200 and its combination with Trifloxystrobin 500 SC were found least effective against leaf and neck blast diseases. However, in case of sheath blight, Thifluzamide 24% SC, RIL-068/F1 48 WG (Kresoxim methyl 40% + Hexaconazole 8% WG), Propiconazole 25% EC (Tilt), Tricyclazole 75% WP (Beam) and a new combination fungicide, Fluxapyroxad 62.5 g/l + Epoxiconazlle 62.5 g/l EC (Adexar w/v EC) were found effective.
Turcicum leaf blight (TLB) and Polysora rust diseases are taking heavy shiver in all maize growing regions of Karnataka. Several new fungicides are used to control the diseases, among them strobilurin group fungicides in combination with triazolefungicides are found effective in management of diseases. A mixture of Trifloxystrobin 50 WG + Tebuconazole 250 EC and mixture of Azoxystrobin 25 SC + Difenoconazole 25 EC were used in this study to manage the TLB and Polysora rust. The two combination fungicides were evaluated in different days against TLB and Polysora rust on two susceptible varieties namely 219J and CM 202. Results revealed that mixture of Trifloxystrobin 50 WG + Tebuconazole 250 EC @ 0.7 g/lit and mixture of Azoxystrobin 25 SC + Difenoconazole 25 EC @ 2.5 ml/litwere found effective in the management of TLB (15.0 % and 11.0 % respectively) and mixture of Trifloxystrobin 50 WG + Tebuconazole 250 EC @ 0.7 g/lit were found effective in controlling Polysora rust (13.2 %). Allied to yield, more significant increase in yield was recorded in treatment Trifloxystrobin 50 WG + Tebuconazole 250 EC @ 0.7 g/lit (5131.1kgs/ha). While, mixtures of Azoxystrobin 25 SC + Difenoconazole 25 EC @ 2.5 ml/lit recorded yield of 5913.0 kgs/ha, this was significantly superior with respect to disease control and yield aspects.
Yield Analysis of Maize Hybrids Lenient to Turcicum Leaf Blight Disease in Southern Districts of Karnataka
Conservation of Biodiversity is an activity must carry out by all individuals in the world to share the benefits derived from biodiversity. It is a critical task to conduct the biodiversity census and conservation (Biodiversity C & C or Biodiversity C2). Throughout the world several Governament and Non-Governamental organizations work together as a unit to maintain our biodiversity in safe mode. India is a mega diverse country with rich biodiversity. The development of modern science and technologies have increased the value of biodiversity and associated traditional knowledge. To save valuable biodiversity and traditional knowledge of our country, National biodiversity board and State biodiversity board constantly involved in this approach and biodiversity law's support to conserve the living diversity.
Comparative analysis of plant diversity with reference to Chamundi hills, in Mysore District of Karnataka State
Rhizosphere actinomycetes are promising biocontrol agents for use in agriculture and have been isolated from various plant species. In the present investigation, actinomycetes were isolated from rhizospheric soil of maize to test antagonistic activity against Fusarium verticillioides and fungal strain (T. viride) were procured from National fungal culture collection of India (NFCCI), T. harzianum and A. niger were isolated from soil to test their antagonistic effects against Fusarium verticillioides. In the present study bio-control dual inoculum method were followed to evaluate the bacterial and fungal strains against the pathogen and reveals that Single Bacterial Inoculum (SBI) of S. cinereus shows more effective in controlling the growth of Fusarium verticillioides (28 mm in treated plate) compare to control (45 mm fungal growth). But in Dual Bacterial Inoculum (DBI), the combination of S. albosporous and S. cinereus shows more effective (08 mm fungal growth in treated plate) compare to control (52 mm fungal growth). Similarly, in Single Fungal Inoculum (SFI), T. harzianum were more effective (18.8 mm fungal growth) and in Dual Fungal Inoculum (DFI), T. viridae and T. harzianum act as a more effective (2.5 mm fungal growth) against Fusarium verticillioides compare to controls (60 mm and 52 mm fungal growth respectively). Overall interpretation of the present work reveals that DBI and DFI were more effective than SBI and SFI against Fusarium verticillioides.
Now-a-days there is a renewed interest in drugs of natural origin simply because they are considered as green medicine and are always safe. The advantage of natural drugs is their easy availability, economic and less or no side effects they have been used in traditional medicine practices. In the present investigation some medicinal weeds were analyzed, it includes Centella asiatica, Phyllanthus niruri, Argemone mexicana, Amaranthus viridis, Asclepias currasavica, Cyperus iria and Portulaca oleraceae. All the eight medicinal weeds collected during field visits were subjected to study organoleptic features, macroscopic studies, powder analysis, physicochemical limits and fluorescence analysis, single and double staining techniques.
PHYSICO-CHEMICAL ANALYSIS OF RHIZOSPHERIC SOIL OF MAIZE (Zea mays L.) AND ITS EFFECTS ON MAIZE DISEASE INCIDENCE (IN VIVO) IN KARNATAKA
Analysis of Edaphic Factors in Few Villages of Mysuru District
Banana (Musa spp.) are giant perennial grasses, commonly known as ‘Apple of paradise’.The chromosome counting of Elachi, Poovan and Nendran Banana traits were recorded. In average, a number of chromosomes recorded in Poovan (13.2), followed by Elachi with 11.1 chromosomes and Nendran with 10.9 chromosomes. There are various methods of determining banana ploidy level, one among is estimating stomatal density and size. The present investigation Elachi, Nendran and Poovan stomatal density range from 50 to 55/mm2 which are diploid, while Robusta ranges 34/mm2 which is triploid. Highest stomatal size recorded in Poovan traits (48 μm2) followed by Robusta (45 μm2), Nendran (28 μm2) and Elachi (21 μm2). Another method of ploidy determination is by chloroplast count in a guard cell of stomata. Elachi, Nendran, and Poovan contain 8 chloroplasts in the guard cell thus belongs to diploid. In the analysis of floral characters of all the four traits reveals that there is no significant difference in stigma length and width. Similarly, no significant variation recorded in anther length. Pollen size is often used as a biological parameter to estimate the ploidy and viability of mature pollen grains. Broad variation in pollen viability exists among clones with Musa species. Mycorrhizal association with the higher plants has also shown an increase in agricultural productivity. The percent colonization of AMF with the root system was calculated by two methods. Compare to Method – I and Method – II reveals that in Elachi 2.5%, Poovan 13.3% and 17.5% of variations recorded. Overall in the average highest percent of colonization were recorded in Poovan (76.6%).
The plant surface especially the leaf surface i.e., phyllosphere is exposed to dust and other particulates resulting in the establishment of a typical microflora. The surfaces of aerial plant parts provide habitat for epiphytic micro-organisms, many of which also influence the growth of pathogens. Microbial life in the phyllosphere is of great commercial importance to the agricultural industry for understanding the survival of plant disease-causing bacteria and fungi is vital for developing new ways to control their spread. In the present investigation, microflora isolated from the surface of a leaf of different medicinal, garden, terrestrial and aquatic plants. In this work fungus, bacteria and actinomycetes are isolated by using leaf washing methods on suitable nutritive media. Generally, the present work carried out by observation and identification of microflora under the microscope and biochemical test methods. The present work reveals that fifteen mycoflora (fungi), fifteen bacterial strains
Periwinkle or Vinca rosea L. has medicinal importance with three phenotypes i.e., Pink, Red eye and White. The present investigation distinguishes the three traits i.e., white, pink and red-eyed flower-bearing traits of V. rosea based on morphology, palynology, pollen grain germination and study of anatomical features of leaf, stem and variations in parts of the flower. The results revealed that significant differences were recorded in stomatal frequency, stomatal index, size of the petals, pollen viability and pollen germination. The highest per cent viability appears in pink flower-bearing plants (98.8%) followed by red-eyed flower-bearing plants (34.3%) and White flower-bearing plants (34%). Similarly, the percentage germination of pollen grains is high in pink flower-bearing plants (98.1%) followed by red-eyed flower-bearing plants (33.3%) and white flower-bearing plants (33.3%).
For utilization of a certain biomass it is necessary to know its chemical composition. The present study is qualitative crude chemical analyses of nutritional value (crude compounds) such as acidity, starch, carohydrates, iron and calcium etc. from stem extracts of Tinospora cardifolia, Centella asiatica, Clerodendrum inerme and leaf extract of Ocimum sanctum, Lawsonia inermis and Piper nigrum were conducted and also separate the pigments by TLC methods. The results revealed that Tinospora cardifolia, biomolecules like starch and carbohydrates were present and elements like iron and calcium were absent. In Centella asiatica indicated the absence of biomolecules like starch and carbohydrates and only one molecules, i.e., calcium is present and iron is absent. Similarly, in Clerodendrum inerme, biomolecules like starch were absent and carbohydrates were present. Both the elements iron and calcium were absent in Clerodendrum plant extracts. In Ocimum sanctum, starch is absent carbohydrates are present, iron and calcium are absent. In Lawsonia inermis, the results are similar to Ocimum sp. i.e., only carbohydrates are present remaining starch, iron and calcium are absent in Ocimum leaf extract. Interestingly, in Piper nigrum, all chemical compounds are totally absent. Related to pigments analysis highest distance travelled pigments are carotenoids (4.3 cm) in O. sanctum and highest numbers of pigments were founded in C. inerme with six pigments and least number of pigments was recorded in O. sanctum (four) and L. inermis (four). Meanwhile, the highest Rf value recorded in O. sanctum and P. nigrum with 0.97 (chlorophyll a). Among the seven pigments in six species carotenoids, chlorophyll a and xanthophylls are common to all species but chlorophyll b, lutein, anthocyanin and lawsonin are rare to occurs in these six species for example Lawsonin occur only in P. nigrum.
When we tested various industrial wastewater samples collected from different industries they shown high amount of toxic chemical components, and the samples are unfit for irrigation or for any kind of activity. Irrigation of untreated wastewater for long time leads to soil pollution by accumulating toxic salts in the soil. The regular growth of plant get effected by this water like improper growth, low chlorophyll content, low carotenoids content, low yield, etc. Three different types of oil yielding plants (Mustard, Ground nut and Sunflower) and three different types of vegetable crops (Tomato, Chilly and Brinjal) has grown by using different industrial wastewater samples. The primitive parameters of vegetative growth (imbibition, seed germination and vigour index) and nutritional components (chlorophyll a, b and carotenoids) have been observed in all the samples after growing for a particular time period. The imbibition test of seed samples in industrial wastewater samples have not shown significant variation compared to imbibition in distilled water sample. All the seeds in all wastewater samples absorbed almost negligible difference but in the percentage of germination there is significant difference. The tests for nutritional compositions have also shown significant decrease in chlorophyll a, b and carotenoids in all varieties.
The goal of the present study was to investigate the molecular mechanisms that underlie heart andskeletal muscle damage in male Wistar rats weighing 200–250 g in response to a 3-h exposure to 180 mm Hg(5% O2) in the model of severe hypobaric hypoxia. It has been demonstrated that the level of the cardiac bio-marker troponin I in the blood plasma of rats exposed to severe hypobaric hypoxia for 3 h increased signifi-cantly compared to the control group, indicating myocardial injury. At the same time, the administration ofthe HIF-1α transcription factor inhibitor did not affect the plasma level of troponin I. In contrast, the releaseof the non-specific biomarker myoglobin into the bloodstream did not increase in response to hypoxia com-pared to the control animals. In addition, 24 h after the exposure to severe hypobaric hypoxia the serum myo-globin level was significantly lower in animals administered with the HIF-1α inhibitor topotecan than in ratsthat did not receive topotecan. Therefore, it may be assumed that the inhibition of the HIF-1α transcriptionfactor 10 min before exposure to severe hypobaric hypoxia reduces skeletal muscle damage. The mechanismsthat affect the adaptation of heart and skeletal muscles to hypoxia are discussed.
In the present study the effect of the ethanol extract of Culcasia falcifolia on the neurotransmitter levels were evaluated. Pentylenetetrazole (PTZ) (60 mg/kg body weight, i. p) was administered to all the groups of mice to induce convulsions. After observing the convulsion, all groups rats were sacrificed, whole brain was dissected out and separated the forebrain. The brain tissue was homogenized and then centrifuged. The aqueous phase was taken for the assay. The reading was obtained using spectroflurimeter. The result of the present study shows that the ethanol extract of Culcasia falcifolia at the dose of 200 and 400 mg/kg body weight significantly increased the level of inhibitory neurotransmitter GABA and also showed significant increase in the levels of dopamine, noradrenalin and serotonin when compared to seizure control group (PTZ treated group) and was almost equivalent to control group. The findings of the study showed that the extract at 200 and 400 mg/kg body weight significantly (p<0.001) increased the levels of GABA, dopamine, serotonin and noradrenaline. The ethanol extract of Culcasia falcifolia exerted antiepileptic activity by decreasing seizure susceptibility to pentylenetetrazole-induced seizure in mice due to restoration of GABA, serotonin, dopamine and noradrenaline concentration levels in mice brain.
Background: Poverty and malnutrition are associated with the risk of developing tuberculosis (TB). Nutritional reintegration with anti-TB therapy may improve treatment success rate. Aim: To investigate the nutritional status of low-income pulmonary TB patients in relation to the different anti-TB treatment phases. Methods: Forty five pulmonary TB patients and 40 controls aged 19-54 years, receiving treatment at Infectious Disease Hospital, Calabar, Nigeria, between September 2018 and July 2019 were studied. Serum total protein, albumin, iron and vitamin A were determined by colorimetric and HPLC methods respectively. Height and weight were measured and BMI computed, and data analysed using Student’s t-test, ANOVA, and Pearson’s correlation at P<0 P=0.001).>0.05) respectively. Albumin and iron were significantly lower in CPAT-HIV compared with CPAT patients. Albumin correlated positively and significantly with iron (r=0.405, p=0.006) in TB patients. Conclusion: Tuberculosis is associated with decreased BMI, albumin, iron and vitamin A, and higher total protein, and globulin, suggesting that malnutrition may be associated with TB risk, poor treatment compliance and outcomes
For thousands of years, lipid based Ayurvedic formulations have been made in India, and the craft has survived down the millennia up to the present time. Some of these deliciously potent phytonutrient preparations are very popular and have sustained the test of time pertaining to their efficacy. Recent researches on the role of phytonutrients in promoting cardio-pulmonary, brain and immune health substantially buttress the philosophy underlying the use of lipids in preparing these emulsions, since a large number of these bioactives are lipophilic. Being lipoidic, they are absorbed through the lacteals in the small intestine, and are then transported through the thoracic duct directly to the heart, bypassing the liver. The formulations utilizing ghee (clarified butter) or sesame oil as the carrier lipid, either while frying the myrobalams or as Anupana (adjuvant), have special significance in modulating bodily immunity, since the immune system is housed in lymphatics which are lipid rich. Amla and lipid based Ayurvedic rasayans (rejuvenating formulations) are a popular and highly palatable group of phytonutraceutical preparations. This group of polyherbal adaptogenic formulations is classified separately from other formulations in Ayurvedic therapeutics. Several of these healthpromoting rasayans are suitable to be consumed by all age-groups in the recommended season and dose. Current research on endothelial and immune cell receptor mediated uptake of lipoidic molecules, together with the knowledge of lipid absorption pathways, lends credence to the usefulness of rasayans in targeting the cardio-pulmonary and immune systems. An attempt has been made in this paper to elucidate the mechanisms underpinning the complex interplay between lipid delivered hydrophobic phyto-molecules, systemic lymphatics and the Immune system.
Abstract In the existing investigation, experiments were carried out to assess the F2 population’s resultant of crosses between improved Basmati 370 and MAS25 for various agronomical and root traits cultivated under aerobic water conditions. Large variations for grain yield, root length, root dry biomass, root thickness and length/breadth ratio of grain have been displayed in segregating F2 populations. A close examination of phenotypic correlation exhibited that in the F2 population, root length was certainly matched up (r = 0.496) with root thickness. A DNA fingerprinting catalog for the currently studied F2 generation was arranged using 61 polymorphic SSR markers. Composite Interval Mapping (CIM) inspection with WinQTL cartographer version 2.5 disclosed 13 putative QTL (Quantitative Trait Loci), out of which 6 QTL were for root characters 7 QTL for agronomical characters situated on 1, 2, 3, 8 and 10 chromosomes. The QTL documented in the above-said generation, some promising F2 plants were also scrutinized and found in the homozygous or heterozygous state with high repetitions.