Journal of environmental biology最新文献

{"title":"Comparative biology and predatory potential of ladybird beetle, Coccinella septempunctata at different temperature regimes","authors":"A. Aman, S. Singh, U. Chandra","doi":"10.22438/jeb/44/3/si-159","DOIUrl":"https://doi.org/10.22438/jeb/44/3/si-159","url":null,"abstract":"Aim: To assess the impact of various temperature regimes on the biology and predatory potential of ladybird beetle, Coccinella septempunctata under laboratory conditions. Methodology: Five treatments and four replications were used for observing the biology and predatory potential on different temperature regimes under laboratory conditions on field-collected mustard aphid, Lipaphis erysimi as a host. Results: Among different temperature regimes, the maximum fecundity and hatchability recorded were 250.67±9.50 and 80.07±0.95, respectively, at 30±2oC. Total grub and adult maximum predatory potential were 238.00±0.50, 508.00±2.65 and 556.33±2.84 at 30±2oC and the minimum were 180.00±5.00, 446.00±12.76 and 493.33±15.28, respectively, at 40±2oC. Interpretation: The present study revealed that 30±2oC temperature was most congenial for the development of Coccinella septempunctata under laboratory conditions and it could be used for mass multiplication of this aphidophagous insect. Key words: Coccinella septempunctata, Ladybird beetle, Predatory potential, Temperature regimes","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49301546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization and classification of soils of Malli-1 micro-watershed of Yedrami taluka, Kalaburagi district, Karnataka","authors":"D.H. Ajaykumar, K. Basavaraj, M. Maheshkumar, B. S. Reddy, N. L. Rajesh, U. Satishkumar, B. Desai","doi":"10.22438/jeb/44/3/si-174","DOIUrl":"https://doi.org/10.22438/jeb/44/3/si-174","url":null,"abstract":"Aim: To evaluate the soils of Malli-1 micro watershed situated in the North-Eastern Dry Zone (Zone-2) of Karnataka for sustainable crop development. Methodology: Eight soil profiles covering all soil types occurred in the study area were selected and studied for their detailed morphological, physical and chemical properties using standard soil testing procedures. Results: Soils of Malli-1 microwatershed varied from clay to clay loam in texture, moderately to strongly alkaline in reaction with low salt content and low to medium in per cent organic carbon content. Calcium and magnesium were the prevailing cations followed by sodium and potassium. Soils were classified upto the series level as per revisions in Soil Taxonomy by utilizing soil characteristics. Majority of soils in study area represents the Vertisols, Inceptisols and Entisols order. Interpretation: These results indicate that soils were less fertile due to deficit in soil nutrients. Recommended doses of organic bio-fertilizer and inorganic fertilizer should be practiced for reclamation of soil status. Key words: Electro chemical stability index, microwatershed, Soil resources, Soil survey","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44244165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies on correlation, heritability and genetic advance in Cape-gooseberry (Physalis peruviana L.) under sub-tropical condition of Bihar","authors":"V. Kumar, R.S. Singh, M. Pal, R. Verma, M. Ojha","doi":"10.22438/jeb/44/3/mrn-1497","DOIUrl":"https://doi.org/10.22438/jeb/44/3/mrn-1497","url":null,"abstract":"Aim: The present investigation was undertaken to assess the per se performance, correlation, heritability and genetic advance of temperate genotypes of Cape-gooseberry (Physalis peruviana L.) under sub-tropical condition of District, Nalanda, Bihar (India). Methodology: About 4-6 leaf stage seedlings of 18 temperate genotypes of Cape-gooseberry were arranged in the field in Randomized Block Design with three replications. Each plot consisted 3.00 m x 2.00 m with spacing of 60 cm and 45 cm between and within rows, respectively. Recommended package of practices were applied to raise a good crop. The data were recorded on ten randomly selected plants for eight characters viz., plant height, number of fruit bearing branches per plant, number of fruits per plant, fruit diameter, fruit length, fruit weight, total soluble solids and fruit yield per plant at maturity, and finally data were subjected to statistical analysis to derive valid conclusion. Results: Significant variation was observed for yield and all the yield traits studied except for plant height. High heritability was observed for fruit weight (0.85) and Total solble solids (0.87). Genetic advance was high for branches per plant (25.87), fruit yield per plant (23.21) and fruit weight (22.57). The fruit yield per plant was strongly positively associated with number of fruits per plant, fruit weight and Total soluble solids at genotypic level. Interpretation: Exhisting variability can be utilized for improvement of the crop. Number of branches per plant and number of fruits per plant are governed by additive genes. Heterosis breeding can be rewarding for the trait having high heritability coupled with low genetic advance. Strong genotypic correlation indicated that yield can be enhanced by giving due weightage to number of fruits per plant, fruit weight and total soluble solids during selection. Key words: Cape-gooseberry, Correlation, Genotypes, Genetic advance, Heritability, Yield","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47676526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alleviating drought stress in rice plant through intervention of Trichoderma spp.","authors":"D. Datta, A. Senapati, L. Behera, N. Zaidi, S. Kumar, P. Dey","doi":"10.22438/jeb/44/3/mrn-4084","DOIUrl":"https://doi.org/10.22438/jeb/44/3/mrn-4084","url":null,"abstract":"Aim: Trichoderma provides resistance to abiotic stress by generating a variety of secondary metabolites, phytohormones, through nutrient solubilization. The current study was conducted to determine whether Trichoderma could be used to alleviate drought stress in rice. Methodology: Three distinct isolates of Trichoderma harzianum [94 (A),T-14, IRRI-2] obtained from the International Rice Research Institute India, as well as two native isolates of Trichoderma asperellum (OT-3) and Trichoderma harzianum (0T-8) obtained from the farmlands of OUAT through serial dilution, were inoculated through seedling root dip treatment. Different morphological (days to active tillering, plant height, panicle initiation, root length, leaf rolling score, number of unfilled and filled grains per panicle) and biochemical data (Total phenolic content, malondialdehyde, proline, hydrogen peroxide, lignin and peroxidase) were estimated to determine the stress due to drought. Results: In-vivo studies on plant height, root length, number of filled grains, grains per panicle and leaf rolling that are positively associated with grain yield revealed that the application of Trichoderma had increased the grain yield. The effect of various biochemical characteristics, such as increase in phenol, peroxidase, lignin and cell membrane stability, which are known to alleviate drought stress through a variety of mechanisms were observed in this study. Inoculation of Trichoderma reduced the levels of oxidative chemicals such as proline, malondialdehyde, and hydrogen peroxide. Interpretation: The biochemical and morphological changes found in this study support the hypothesis that Trichoderma had a positive impact on yield and drought stress. Key words: Drought, Rice, Stress-related enzymes, Trichoderma spp","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43117178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of a pigmented Brevundimonas sp. isolated from red mud pond samples of a bauxite mine","authors":"S. Panigrahi, D. P. Panigrahi","doi":"10.22438/jeb/44/3/mrn-5023","DOIUrl":"https://doi.org/10.22438/jeb/44/3/mrn-5023","url":null,"abstract":"Aim: The present study aimed to isolate useful bacterial strains of industrial importance from the red mud pond of Utkal Alumina, Odisha, India. Methodology: Samples were collected, serially diluted and spread on Nutrient Agar medium. An orange-colored bacterium was isolated and subjected to molecular characterization through 16S rDNA analysis followed by phylogenetic analysis. The pigment was isolated and characterized through FTIR study. Antimicrobial and radical scavenging activities were also studied. Results: The isolate was identified as Brevundimonas sp. FTIR study showed the pigment to be a beta-carotene, which significantly increased under salt and pH stress, however, was severely affected under metallic stress conditions. The ethanolic extract showed a moderate antibacterial activity. The pigment showeda good radical scavenging activity of approximately 86 % in 30 min. Interpretation: Species of Brevundimonas have not been reported in red mud ponds. The isolated pigment shows a good radical scavenging activity in vitro. It may be useful for cosmetic industry. Key words: Red mud, 16S rDNA, Alkali tolerant, Beta-carotene, Brevundimonas, FTIR spectroscopy","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42350500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic characterization of fish, Cynoglossus lingua Hamilton, 1822 found in Chandipur Coast of Odisha using COI and Cytochrome b genes","authors":"R. Jena, A. K. Rout, A. Jana, B. Behera, B. K. Behera","doi":"10.22438/jeb/44/3/mrn-5069","DOIUrl":"https://doi.org/10.22438/jeb/44/3/mrn-5069","url":null,"abstract":"Aim: In this study we characterized the fish Cynoglossus lingua collected from Chandipur Coast of Odisha using the mtDNA markers cytochrome c oxidase I (COI) and cytochrome b (Cyt-b) genes. Methodology: Samples of flat fish were collected from Balaramgadi fish landing center, Chandipur sea beach, Odisha coast. The collected specimens were initially identified based on the morphology using standard taxonomic keys. Molecular characterization was accomplished through PCR amplification of COI and Cyt-b genes. The sequences were subjected to BLAST analysis and aligned using Clustal W for homology mapping. Phylogenetic status was inferred by the neighbor-joining method using MEGA v7.0. Results: The taxonomic keys and the COI and Cyt-b gene sequences identified the specimens as C. lingua. The COI and Cyt-b gene sequences showed 98% and 99% sequence similarity with C. lingua isolate FMU.CIFRI.FF-7 COI gene (GenBank accession: MN889532.1) and the C. lingua isolate FM.CIFRI.CYTB.FF-7 Cyt-b gene (GenBank accession MT362541.1), respectively. Interpretation: The study supports the reliability of combining classical taxonomic approaches with molecular analysis using COI and Cyt-b genes for the identification of C. lingua. Key words: Cynoglossus lingua, COI gene, Cytochrome b gene, DNA barcoding, Molecular taxonomy","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47433929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of application of lime with vermicompost on the activities of microorganisms of some acidic soils of West Bengal","authors":"A. Chakraborty, M. Saha, S. Dutta, N. Sahu","doi":"10.22438/jeb/44/3/si-183","DOIUrl":"https://doi.org/10.22438/jeb/44/3/si-183","url":null,"abstract":"Aim: To evaluate the efficacy of integrated application of lime at partial doses of lime requirement (LR) with vermicompost in acid soils to minimize the soil acidity, improve the population of beneficial microorganisms and their microbial activities in comparison to sole treatment of lime as per Lime Requirement dose. Methodology: Two highly acidic soils collected from the farmer’s field of South 24 Parganas district, West Bengal having no history of acidity management were used. The soils were treated with different rates of lime requirement (LR, ⅔LR & ½LR) and lime (½LR) + vermicompost (5 tha-1) treatments and incubated for 60 days. Soil pH, soil organic carbon content, different microbial populations, microbial respiration and enzymatic activities (FDHA and DHA) were assessed at different days. Results: The study indicated that the lime treatments showed rapid increase in soil pH towards the slightly alkaline condition whereas lime +vermicompost treatment (T5) successfully maintained the neutralized condition. Integrated treatment of lower doses of lime and vermicompost (T5) was found to efficiently promote the microbial population (rhizobium, phosphate and potassium solubilizing bacteria) and microbial respiration (basal and substrate induced respiration) activity, which might be attributed to the improvement soil microbial status. FDHA and DHA increased significantly with ‘lime’ as well as the ‘lime with vermicompost’ treatments in comparison to control. Interpretation: The incorporation of lower amount of lime and organic matter efficiently neutralizes the acidity and boosted up the microbial activities simultaneously that in turn might improve the soil health. The high cost to purchase the huge quantity of lime as recommended LR (9.25 tha-1) for studied soils turns the farmers uninterested to follow lime practice and interrupted the mitigation of soil acidity. Thus, the study might conclude that the integrated approach of lime application@½LR with vermicompost might successfully ameliorate the acid soils in terms of acidity as well as the soil microbial activities. Key words: Acid soil, BSR, Dehydrogenase, Fluorescein diacetate, SIR, Lime, Vermicompost","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48397580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of potash fertilization through organic and inorganic sources on growth and yield of turmeric","authors":"M. Chanchan, S. Romen, J. Hore","doi":"10.22438/jeb/44/3/si-182","DOIUrl":"https://doi.org/10.22438/jeb/44/3/si-182","url":null,"abstract":"Aim: To investigate the possibility of substitution of inorganic inputs through organics and to evaluate the effects of bioorganic inputs on microbial population of soil. Methodology: A field experiment of RBD with 13 treatments and 3 replication using combination of organic manures viz., compost/vermicompost, potassic mobilising inoculants along with graded (100, 75 and 50%) levels of inorganic potassium were tried for partial substitution of inorganic potassium with organic source in turmeric cv. Suguna. Results: Considering the yield, the vermicompost + inorganic K (100%) + K mobiliser (32.35 t ha-1) was the best treatment, followed by Compost + K 100% + KM (31.13 t ha-1). Interpretation: These results indicate that soils were less fertile due to deficit in soil nutrients. Recommended doses of organic bio-fertilizer and inorganic fertilizer should be practiced for reclamation of soil status. Application of potassic mobilizer as biofertilizer in turmeric can reduce the application of inorganic potassium and support eco-friendly crop production. Key words: Compost, Curcuma longa, Organic manures, Potassic mobilizer, Turmeric, Vermicompost","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44076492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screening of mustard (Brassica juncea) varieties under different quality of saline water irrigation in semi-arid conditions of Haryana","authors":"R. Prakash, S. Devi, N. Kumar, A. Dhillion","doi":"10.22438/jeb/44/3/si-151","DOIUrl":"https://doi.org/10.22438/jeb/44/3/si-151","url":null,"abstract":"Aim: Screening mustard varieties under saline water irrigation, and to evaluate the salt tolerant mustard varieties for semi-arid conditions of Haryana. Methodology: This study was conducted in permanent pucca plots measuring 2m x 2m with six mustard varieties (Kranti; NC, Kranti; Filler, CS2005-143,Giriraj,CS-54, and CS-60) and four quality of irrigation water, i.e., ECiw 0.36, 2.5, 5.0 and 7.5 dS m-1 in a Completely Randomised Design with three replications in sandy loam soil. Results: The data on seed yield, straw yield and other physiological parameters indicated decrease with increasing salinity of irrigation water. The interaction between varieties and saline water irrigation was in significant. Among six mustard varieties, variety CS 2005-143 showed significantly higher seed and straw yield (24.47 and 74.37 q ha-1) as compared to the remaining varieties. However, the variety Kranti (NC) attained the lowest seed and straw yield (15.47 and 45.53 q ha-1). The overall mean reduction in seed and straw yield at 2.5, 5.0 and 7.5 dS m-1 was 3.69, 12.42, 24.89 and 4.16, 14.85, 27.54% as compared to canal water (0.36 dS m-1), respectively. Physiological parameters like chlorophyll content, chlorophyll stability index (%), relative water content (%), assimilation rate declined under salinity stress. The maximum reduction was noticed at higher salinity level (7.5 dS m-1). Variety CS 2005-143 benefited higher among other varieties at each salinity levels. Interpretation: Among the six mustard varieties, CS 2005-143 performed better in terms of seed yield, straw yield, and other physiological parameter at higher salinity levels (7.5 dS m-1). Key words: Chlorophyll content, Mustard varieties, Saline water, Semi-arid areas","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44887983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deciphering variability for heat tolerance index in maize hybrids and identification of stress resilient heterotic combinations","authors":"S. Sandhu, N. Yousuf, G. Singh, M. Kumar","doi":"10.22438/jeb/44/2/mrn-4076","DOIUrl":"https://doi.org/10.22438/jeb/44/2/mrn-4076","url":null,"abstract":"Aim: High temperature at any critical stage for a prolonged duration is documented to negatively affect the growth and yield related processes in maize. Therefore, the present study was planned to identify resilience of different heterotic combinations to heat stress under field conditions. Methodology: A set of 20 parental lines were used as parents and 21 single cross hybrids raised in kharif 2020 using 16 lines as female parent and four lines as male parent along with three commercial checks using randomized block design under two regimes: Normal Sownin mid of February, i.e., timely sown condition (spring season crop) and late sown in mid of March (heat stress crop). Data was recorded for yield and its contributing traits. Results: Heat stress led to early onset of flowering, thus resulting in shortening of vegetative phase. Consequently, days to grain filling period was found to be reduced (84-106 days) under late sown as compared to 100-123 days under normal sown condition. Amongst the top performing six hybrids in both normal sown and late sown conditions, three hybrids were common viz., JH 20003, JH 20015 and JH 20018, though with different ranking, inferring their wider adaptability and tolerance to heat stress. Under late sown conditions, days to grain filling (r2=0.55) and thousand seed weight (r2 =0.50) showed significantly positive correlation with grain yield while as highly significant and negative association was observed between anthesis silking interval and grain yield (r2 = -0.76). Among the 21 hybrids, three hybrids (JH 20001, JH 20004, and JH 20015) showed greater potential under heat stress conditions on the basis of yield performance under stress, percent yield reduction and heat tolerance index. Interpretation: Based on multiple selection criteria, three hybrids viz., JH 20001, JH 20004, and JH 20015 were suggested for commercial utilization after validation. This study also led to identification of donor inbreds which can contribute to breeding for heat stress tolerance. Key words: Grain yield, Heat tolerance index, Heat stress, Maize, Percent yield reduction","PeriodicalId":15688,"journal":{"name":"Journal of environmental biology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46340513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}