Journal of Applied and Natural Science
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Effect of pulse sprout spray as a foliar nutrition to enhance seed yield and quality in barnyard millet (Echinochloa frumentacea l.)
Get PDFMillets are rich in valuable nutrients such as carbohydrates, proteins, dietary fibre, minerals and vitamins. The uninterrupted and disproportionate use of chemical fertilizers over a longer period has resulted in deterioration of soil health and reduced yield. Foliar spray is a very easy way to supply valuable nutrients to plants. With this background, an experiment was conducted to see the effect of pulse sprout extract spray as a foliar spray on the seed crop Barnyard millet (Echinochloa frumentacea L.). The seed crop given foliar treatment with 2% horse gram pulse sprout extract spray recorded higher growth attributes namely plant height (172.8 cm), total chlorophyll content (1.560 mg/g) and yield attributes viz., seed yield per plant (26.5 g), seed yield per plot (2.54 kg), seed yield per hectare (2506 kg), 1000 seed weight (3.28 g), quality parameters viz., germination (89%), vigour index (2461) and biochemical parameters of resultant seeds in both kharif and rabi seasons. The crop given with foliar nutrition of 2% horse gram sprout extract spray showed a low number of days to flower initiation (45 days) and 50% flowering (54 days) when compared to control followed by 2% cowpea sprout extract. Hence it was hypothesized that application of the nutrient extract from the sprouted pulses in the form of foliar spray would enable better crop growth and productivity of Barnyard millet
Agronomic biofortification through micronutrient management in maize: A review
Get PDFMost of the health components based foods are boosted by the application of mineral nutrients. Since post green revolution, farmers fertilize the crop for optimum to higher yields which are often overlooked. In addition to higher yield, plant nutrition also affects other human nutritional needs like proteins, oils, vitamins and minerals. Trace elements necessary to human nutrition can be optimized by applying to food crops. Due to various factors like temperature, climate, time of applications, crop adaptability, etc., some nutrients have their own restrictions, and few micronutrients are beneficial and play a significant role in food nutrition making easier access in the plant edible parts by its applications. It is important to note that the foliar application of Zn and Fe at the later crop stage (mid booting stage or early milking stage) is found to be effective than early applications. When compared to related interventions like supplementation and fortification, biofortification was found to be significantly cost-effective in applications to crop and create values for human nutrition
Assessment of optimal growth conditions for specific carotenoids production by Chlorella vulgaris
Get PDFExploration of regional microalgae for carotenoids production under optimized cultural conditions is a sustainable economic and technical perspective. This study details comprehensive research on the influence of growth conditions on microalgal carotenoids. Carotenoid triggering factors were optimized to identify suitable growth conditions to produce specific carotenoids by Chlorella vulgaris. Media optimization and cultivation conditions were the factors considered and the results revealed the optimum growth conditions for carotenoid production by C. vulgaris was pH 8, 35°C temperature, 0.04 M salinity and 160 µE\m²\sec light intensity. Among the nutrient sources, potassium nitrate and potassium phosphate were suitable for nitrogen and phosphorous supplements. The results indicated optimizing the culture conditions and nutrient sources help to attain desirable carotenoid production by C. vulgaris. Specific carotenoids were extracted from the algal extract and were identified by high-performance liquid chromatography in which lutein (8.8%) was present as major carotenoid followed by astaxanthin (4.6%) and ?-carotene (3.9%). This study revealed that that carotenoid production by C. vulgaris could be enhanced by manipulating culture conditions thereby attain desirable carotenoid production.
Limnology of rock pools in the river Chenab at Dhoomi, Akhnoor, in Jammu region of the Union Territory of Jammu and Kashmir
Get PDFSmall and temporary freshwater rock pools, compared to lakes, ponds and rivers, have received a very little scientific attention in India. For the present limnological study, six rock pools in the river Chenab at Dhoomi, Akhnoor, were analysed seven times for water quality and fauna during 17-01-2011 to 26-01-2011 and have been described. Among various water parameters depth (6-11 cm), transparency (6-11 cm) and turbidity (1.4-6.88 NTU) recorded a decrease after high record on first observation. Salinity remained constant (0.1 ppt) on all the seven observations. Dissolved oxygen (DO) observed maximum (12.81 mg/l) record on 19-01-2011 and minimum (9.99 mg/l) on 26-01-2011. Chloride (Cl?) was minimum (2.73 mg/l) on 17-01-2011 and 18-01-2011 and maximum (6.81 mg/l) on 24-01-2011. Conductivity (75.50 – 178.8 µS cm?¹), total dissolved solids (TDS) (40.13 – 85.5 mg/l), Biological oxygen demand (BOD) (2.5 – 6.63 mg/l), pH (8.26 – 9.12), carbonate ( CO3-2) (2.31 – 22.84 mg/l), bicarbonate (HCO3-) (29.83 – 71.29 mg/l), calcium (Ca+2) (9.45 – 29.50 mg/l), magnesium (Mg+2) (2.24 – 5.38 mg/l), total hardness (TH) (35.34 – 95.80 mg/l) and sodium (Na+) (0.44 – 1.05 mg/l) showed highest record on last observation. Potassium (K+) (0.60 – 1.70 mg/l) was minimum on 18-01-2011 and maximum on 24-01-2011. Nitrate (NO3?) (0.084-0.373 mg/l), phosphate (PO4³? ) (0.043 – 0.140 mg/l), silicate (SiO4-4) (1.28 – 3.95 mg/l) and sulphate (SO4-2) (4.89 – 7.84 mg/l) observed an irregular pulse. Fauna in these rock pools was represented by zooplankton (passive dispersers) belonging to Protozoa (27 species), Rotifera (3 species), gemmules of Porifera (2 species) and Turbellaria (1 species) only. Zooplanktonic maximum qualitative record was observed on 6th observation and quantitative on 7th observation. In the absence of any earlier study on freshwater rock pools in the Himalayan rivers, present work shall be of great help for future workers
Potential of ethnobotanical medicinal plants used by Malayali tribes in Yercaud hills, Eastern ghats of Tamil Nadu, India
Get PDFEthnobotanical knowledge plays an important role in therapeutic beneficial by traditional people of the Yercaud hills, Eastern ghats of the State Tamil Nadu. This current study focused on documentation of medicinal plants used to treat several ailments. Enlightenment of medicinal plants data was gathered from the Malayali tribes, using an integrated approach like botanical collections, group discussion and interviews with questionnaires in the year 2018 – 2019. During the survey a total number of 40 ethnomedicinal plant species belonging to 38 genera and 25 families were documented. Traditional names of the plants by traditional healers and local community members were prepared as a checklist. The checklist of medicinal plants used by Malayali tribes are listed with botanical name, vernacular name, family, parts used, mode of preparation, mode of admiration and medicinal uses. We observed that the documented ethnomedicinal plants were commonly used to treating snakebite, earache, chest pain, body pain, lumbago, eczema, haemorrhoids, jaundice, dog bite, sprain, beetle bite, epididymitis, bone fracture, arthritis and painful menstruation. The results of this study showed that the tribal people still depended on medicinal plants in Yercaud Hills for treating various diseases. This would be a baseline data of medicinal plants for future research and potential development of novel drugs
Modeling on population growth and its adaptation: A comparative analysis between Bangladesh and India
Get PDFThe biggest challenge in the world is population growth and determining how society and the state adapt to it as it directly affects the fundamental human rights such as food, clothing, housing, education, medical care, etc. The population estimates of any country play an important role in making the right decision about socio-economic and population development projects. Unpredictable population growth can be a curse. The purpose of this research article is to compare the accuracy process and proximity of three mathematical model such as Malthusian or exponential growth model, Logistic growth model and Least Square model to make predictions about the population growth of Bangladesh and India at the end of 21st century. Based on the results, it has been observed that the population is expected to be 429.32(in million) in Bangladesh and 3768.53 (in million) in India by exponential model, 211.70(in million) in Bangladesh and 1712.94(in million) in India by logistic model and 309.28 (in million) in Bangladesh and 2686.30 (in million) in India by least square method at the end of 2100. It was found that the projection data from 2000 to 2020 using the Logistic Growth Model was very close to the actual data. From that point of view, it can be predicted that the population will be 212 million in Bangladesh and 1713 million in India at the end of the 21st century. Although transgender people are recognized as the third sex but their accurate statistics data is not available. The work also provides a comparative scenario of how the state has adapted to the growing population in the past and how they will adapt in the future
Taxonomic studies on subgenus Pseudomegachile Friese under genus Megachile Latreille (Hymenoptera) from Sutlej basin plains (India)
Get PDFGenus Megachile forms an integral part of the ecosystem as its members are important pollinators of both wild and cultivated flora. Surveying on a large scale helps in gathering a lot of information about their spatial and temporal data. This also helps in studying their biodiversity and taxonomy. Three species of solitary bees under subgenus Pseudomegachile Friese of the genus Megachile Latreille collected from Sutlej basin plains of India have been studied and described taxonomically. Megachile (Pseudomegachile) creusa (Bingham), M. (P.) ramakrishnae Cockerell and M. (P.) elfrona (Cameron) with 21 examples are described including their morphological characters, taxonomically important characters, zoogeographic records, floral associations along with genitalic and sternal plates. Since most of the areas included in the study have been surveyed first time for Megachile study, these are new records for the studied area
Studies on the morphology of leukaemic blast cells in relation to haematological parameters
Get PDFA combination of haematological parameters with morphological evaluation of peripheral blood and bone marrow blast cells is crucial for leukaemia diagnosis. FAB (French– American–British) classification is a simple and powerful diagnostic tool for leukaemia in developing countries like India. Differentiation block in the early stages of haematopoiesis and morphological characteristics of leukemic blast cells are directly related to haematological parameters. The present study is an approach to increase understanding of the simple morphological FAB classification of leukaemia in relation to haematological parameters. The present study revealed that Chronic Myeloid Leukaemia (CML) was the most common type of leukaemia , followed by Acute Myeloid Leukaemia, Acute Lymphoid Leukaemia (ALL), and Chronic Lymphoid Leukaemia (CLL) in Nagpur. Most of the cases of Acute Leukaemia had severe anaemia and thrombocytopenia. Highest variation was found in Total WBCs count of different types of leukaemia , particularly in different subtypes of AML. The present study also suggested that FAB classification is not outdated, but it does require continuous revalidation and other procedures for refinement.  
Rice insect pests and their natural enemies complex in direct seeded and transplanted rice (Oryza sativa) of Chidambaram areas of Cuddalore, India
Get PDFRice is the cereal grain that feeds half the planet. Rice fields are economically important as well as ecologically valuable. Rice fields are one of the biggest ecosystems that can be found in the tropics, including diverse insect pests and their natural enemies. In this view, rice varieties were sown in experimental plots of Faculty of Agriculture, Annamalai University, Chidambaram. The values are found significant at 5% level. To monitor the pest and natural enemies by using net sweeping and yellow pan trap method was used. The results showed that the maximum number of yellow stem borer was observed in the direct-seeded rice variety of CR Dhan 209 (7.33) and the leaf folder population was maximum in the direct-seeded rice variety of CR Dhan 204 (7.33). The peak population of grasshopper and green leafhopper was recorded in the transplanted rice variety of CR Dhan200 (11.33), CR Dhan 209 (8.00). The values were found significant at 5% level. The maximum number of Braconidae was observed in direct-seeded rice variety of CR Dhan 205 (3.66), and Ichneumonidae was recorded the highest number of direct-seeded and transplanted rice in the variety of CR Dhan 202 (3.00). The peak population of Trichogrammatidae was recorded in direct-seeded rice of CR Dhan 207 (3.66). The presence of Platygastridae was high in the transplanted rice variety of CR Dhan 201 (8.66), respectively. Among the rice ecosystems, more insect pests and crop damage were noticed in direct-seeded rice more than the transplanted rice
A report on freshwater tailless flea, Simocephalus vetulus from Haridwar, located in foothills of Shivalik Himalaya in Uttarakhand, India
Get PDFThe Cladocerans, commonly known as “Water fleas” form a primitive freshwater group of micro crustacean zooplankton of the freshwater ecosystem. They play an important role in the aquatic food chain and also contribute significantly to zooplankton dynamics and secondary productivity in freshwater ecosystems. The animals used in the present study were identified as Simocephalus vetulus with the help of identification keys described by various authors in the previous studies from other parts of India. In the present study, the occurrence of “freshwater tailless flea”, S. vetulus (Crustacea- cladocera) is reported for the first time from freshwater bodies in Haridwar, located in foothills of Shivalik Himalayan region in Uttarakhand. The presence of S. vetulus “tailless water flea” will be helpful as a lab model for the health status of aquatic bodies as well as environmental monitoring