scholarly journals Evaluation of Cercospora oryzae Miyake under natural pressure conditions.

2020 ◽  
Vol 151 ◽  
pp. 15530-15539
Author(s):  
Gnancadja L. S. André ◽  
Soura B. Hervé ◽  
Koita Kadidia ◽  
Gandonou Christophe ◽  
Baba-Moussa A. K. Farid
Keyword(s):  
Key Words ◽  
Leaf Area ◽  
Research Work ◽  
High Incidence ◽  
Rate Of Progression ◽  
Application Potential ◽  
Low Incidence ◽  
Natural Pressure ◽  
Important Disease ◽  
Methods Of Control

Objective: This study is a contribution to the knowledge of Cercospora oryzae Miyake, in order to increase yields. It will consist in: i) evaluating the resistance of five varieties of rice, ii) evaluating the effect of Cercospora oryzae Miyake on the leaf and panicle stages and iii) evaluating the yield. Methodology and results: The study will combine phenotypic and agromorphological tools. On the ninety first (91th) day after sowing, a high incidence of leaf Cercosporiosis was recorded on the varieties TS2 (29.74%), FKR34 (27%) and a very low incidence on the variety ORYLUX6 (5, 78%). From tillering to panicle initiation, the rate of progression of the epidemic r2 = 0.879 is significant in TS2. The ORYLUX6 variety is the most capable of slowing the progression of the epidemic. At the panicular level, from the pasty grain stage to the milky grain stage, the incidence has increased for most of the varieties. The ORYLUX6 recorded the highest yield with 4.38 t/ ha. Conclusion and application potential of the results: Cercospora oryzae Miyake causes a drop in yieldby reducing the leaf area of thr leaves. Cercospora oryzae Miyake is an important disease of rice in SudBenin. These results constiyute a stage of an in-depth research work on the characterization (agronomic and genetic) of Cercospora oryzae Miyake in order to propose methods of control. Key words: Cercospora oryzae, incidence, yield, rice, Benin. RESUME Objectifs : L’étude a été une contribution à la connaissance de Cercospora oryzae Miyake afin d’accroitre les rendements. Elle a consistée a : i) évaluer la résistance de cinq variétés de riz, ii) évaluer l’effet de Cercospora oryzae Miyake sur les stades foliaires et paniculaires et iii) évaluer le rendement. Méthodologie et résultats : L’étude a combinée des outils phénotypiques et agromorphologiques. Au quatre-vingt onzième jour après semis on a enregistré une forte incidence de la cercosporiose foliaire sur les variétés TS2 (29,74%), FKR34 (27%) et une très faible incidence sur la variété ORYLUX6 (5,78%). Du stade tallage à l’initiation paniculaire le taux de progression de l’épidémie r2=0,879 a été important chez TS2. La variété ORYLUX6 a été la plus apte à freiner la progression de l’épidémie. Du stade grain pâteux Gnancadja et al., J. Appl. Biosci. 2020 Evaluation of Cercospora oryzae Miyake under natural pressure conditions. 15531 au stade grain laiteux l’incidence à augmentée pour la plus part des variétés. ORYLUX6 a enregistré le rendement le plus élève (4,38 t/ha). Conclusion et application potentielle des résultats: Cercospora oryzae Miyake entraine une baisse de rendement en réduisant les surfaces foliaires des feuilles. La cercosporiose est une affection importante du riz au Sud-Bénin. Ces résultats constituent une étape d’un travail de recherche approfondi sur la caractérisation (agronomique et génétique) de Cercospora oryzae Miyake afin de proposer des méthodes de luttes. Mot clés : Cercospora oryzae, incidence, rendement, riz, Bénin.

scholarly journals Diseases of Sugarcane and their Control in Puerto Rico

1969 ◽  
Vol 55 (2) ◽  
pp. 139-146
Author(s):  
Lii-Jang Liu ◽  
José Adsuar ◽  
Enrique Pérez
Keyword(s):  
Puerto Rico ◽  
Root Rot ◽  
Economic Importance ◽  
Hot Water ◽  
Root Rots ◽  
High Incidence ◽  
Disease Survey ◽  
Sugar Mills ◽  
Low Incidence ◽  
Methods Of Control

A sugarcane disease survey was conducted over different mill zones of Puerto Rico during the fall of 1969 and the spring of 1970. It covered the plantations of 10 sugar mills. The results obtained to date indicate that the diseases of major importance are ratoon stunting, chlorotic streak, pineapple disease, and root rot caused by a complex of Pythium, Fusarium and nematodes. The specific disease problems are identified in each area. Special attention was given to disease distribution, economic importance, and possible methods of control. Although in general low incidence of ratoon stunting was observed in commercial plantings, data obtained from previous variety tests indicate this malady to be potentially dangerous. Hot water treatment of seedpieces should be conducted to prevent its further spread. The significance of chlorotic streak disease as a factor in yield decline in Puerto Rico has not yet been completely evaluated. The high incidence of this disease, under present conditions, has given rise to concern. Pineapple disease caused by Thielaviopsis paradoxa greatly affects the germination of P.R. 980, especially in areas with poor drainage. Root rots caused by Pythium, Fusarium and nematodes reduced germination of P.O.J. 2878 and H. 328560 by as much as 40 percent in poorly-drained areas.

scholarly journals Spatial distribution and risk assessment of toxic metals in agricultural soils from endemic nasopharyngeal carcinoma region in South China

2020 ◽  
Vol 12 (1) ◽  
pp. 568-579
Author(s):  
Liping Mo ◽  
Yongzhang Zhou ◽  
Gnanachandrasamy Gopalakrishnana ◽  
Xingyuan Li
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
South China ◽  
Toxic Metals ◽  
Agricultural Soils ◽  
Hazard Index ◽  
Toxic Metal ◽  
Carcinogenic Risk ◽  
Pollution Indices ◽  
High Incidence ◽  
Low Incidence

AbstractSihui city (South China) is much affected by nasopharyngeal carcinoma (NPC). To investigate the relationships between the toxic metals in soil and NPC incidence in Sihui, 119 surface soil samples were collected from agricultural fields and analyzed. The soil As–Cr contents in Longjiang (high-incidence area) are significantly lower than those in Weizheng and Jianglin (low-incidence areas), whereas the soil Pb content in Longjiang is significantly higher than that in Weizheng. The Nemerow pollution indices (PIN) of soils decrease in the order of Jianglin > Weizheng > Longjiang. The enrichment factor (EF) of Cd indicates that the Cd enrichment is contributed by human activities. Potential toxic metal-related ecological risk values decrease in the order of Jianglin > Weizheng > Longjiang. The mean hazard index (HI) value of Longjiang was lower than those of Weizheng and Jianglin. There are no adverse noncarcinogenic health effects of soil toxic metals to adults in the study areas. Carcinogenic risks of As and Cr via ingestion and dermal contact and total carcinogenic risk are within the warning range, from 10−6 to 10−4. Hence, we suggest that toxic metals in the soil may not be major geochemical carcinogenic factors of high NPC incidence in Sihui.

scholarly journals Could MicroRNAs Be Useful Tools to Improve the Diagnosis and Treatment of Rare Gynecological Cancers? A Brief Overview

2021 ◽  
Vol 22 (8) ◽  
pp. 3822
Author(s):  
Riccardo Di Fiore ◽  
Sherif Suleiman ◽  
Francesca Pentimalli ◽  
Sharon A. O’Toole ◽  
John J. O’Leary ◽  
...  
Keyword(s):  
Female Genital Tract ◽  
Germ Cell Tumors ◽  
Delayed Diagnosis ◽  
Public Health Issue ◽  
Gene Promoters ◽  
Gynecological Cancers ◽  
High Incidence ◽  
Low Incidence ◽  
Diagnosis Therapy ◽  
Malignant Germ Cell Tumors

Gynecological cancers pose an important public health issue, with a high incidence among women of all ages. Gynecological cancers such as malignant germ-cell tumors, sex-cord-stromal tumors, uterine sarcomas and carcinosarcomas, gestational trophoblastic neoplasia, vulvar carcinoma and melanoma of the female genital tract, are defined as rare with an annual incidence of <6 per 100,000 women. Rare gynecological cancers (RGCs) are associated with poor prognosis, and given the low incidence of each entity, there is the risk of delayed diagnosis due to clinical inexperience and limited therapeutic options. There has been a growing interest in the field of microRNAs (miRNAs), a class of small non-coding RNAs of ∼22 nucleotides in length, because of their potential to regulate diverse biological processes. miRNAs usually induce mRNA degradation and translational repression by interacting with the 3′ untranslated region (3′-UTR) of target mRNAs, as well as other regions and gene promoters, as well as activating translation or regulating transcription under certain conditions. Recent research has revealed the enormous promise of miRNAs for improving the diagnosis, therapy and prognosis of all major gynecological cancers. However, to date, only a few studies have been performed on RGCs. In this review, we summarize the data currently available regarding RGCs.

Pulmonary Tuberculosis Mimicking Lung Cancer and Metastasis Radiologically- A Case Report

2020 ◽  
Author(s):  
Harveen Kaur
Keyword(s):  
Lung Cancer ◽  
Pulmonary Tuberculosis ◽  
Diagnostic Procedures ◽  
Mediastinal Lymphadenopathy ◽  
Presumptive Diagnosis ◽  
Clinical Presentations ◽  
High Incidence ◽  
Pulmonary Infiltration ◽  
Low Incidence ◽  
Clinical Conditions

Tuberculosis (TB) is known to mimic several clinical conditions, especially malignancy. Pulmonary TB can present with pulmonary infiltration with or without mediastinal lymphadenopathy. TB often gets misdiagnosed in the countries having a low incidence of TB with a high incidence of lung cancer and varying clinical presentations, which results in delay in treatment initiation and unnecessary diagnostic procedures. We present a case of a 52-year old female, with a presumptive diagnosis of malignancy, which was subsequently proved as pulmonary tuberculosis with no evidence of malignancy instead.

scholarly journals Incidence Of Diarrheal Infections In Ukraine: Epidemiological Peculiarities

2019 ◽  
Author(s):  
Nina Malysh ◽  
Oksana Chemych ◽  
Roman Rodyna ◽  
Inna Chorna ◽  
Svitlana Doan
Keyword(s):  
Drinking Water ◽  
Food Item ◽  
Analytical Study ◽  
Incidence Rates ◽  
Epidemiological Surveillance ◽  
Statistical Research ◽  
Factors Influencing ◽  
High Incidence ◽  
The World ◽  
Low Incidence

Abstract Background : Diarrheal infections remain relevant for many countries of the world. The processes of globalization, fundamental changes in nutrition and water consumption contributed to the fact that the significance of individual infection sources, etiological structure of diarrheal infections changed. Purpose of the study: on the background of the analytical study of the incidence of diarrheal infections in Ukraine under the current conditions, to determine the factors influencing epidemic situation. Methods: The reports of the Ministry of Health of Ukraine, Main Administrations of Statistics in Kharkiv, Odesa, Zaporizhia oblasts for 2011-2018 are used in the paper. Epidemiological and statistical research methods are applied. Results: The epidemic situation with diarrheal infections in Ukraine is characterized by a low incidence of typhoid fever (from 0.012 to 0.14 per 100 thousand people), shigellosis (from 1.97-6.13 per 100 thousand people), stable incidence rates without the downward trend, salmonellosis (from 17.35 till 24.1 per 100 thousand people), high incidence of diahrreal infections of specified etiology (from 115.5 to141.9 per 100 thousand people) and diahrreal infections of unspecified etiology (from 69.76 to 107.02 per 100 thousand people). The most complicated epidemic situation is observed in economically most developed regions of the country. Most diarrheal infectionsoutbreaks are connected with catering establishments 36.5 % and with children educational establishments 26.1 %. In the region with the highest shigellosis and salmonellosis incidence direct strong correlation relationships are established between the incidence and population, density, natural population movement. The oblasts with the highest diahrreal infections of specified etiology, rotaviral enteritis, diahrreal infections of unspecified etiology incidence are at least provided with water resources and have problems with provision of high-quality drinking water. There is a need to improve the system of epidemiological surveillance over diarrheal infections by extension of the indicators of microbiological study of drinking water quality in the regions of Ukraine, where high diahrreal infections of specified etiology, rotaviral enteritis, diahrreal infections of unspecified etiology incidence is registered; by increasing frequency of food item inspections in the oblasts, where mediana shigellosis and salmonellosis incidence exceeds the average one in Ukraine. Keywords: diarrheal infections, shigellosis, salmonellosis, rotaviral enteritis.

scholarly journals Light dynamics and free-to-grow standards in aspen-dominated mixedwood forests

2002 ◽  
Vol 78 (1) ◽  
pp. 137-145 ◽  
Author(s):  
Victor J Lieffers ◽  
Bradley D Pinno ◽  
Kenneth J Stadt
Keyword(s):  
Leaf Area Index ◽  
Key Words ◽  
Leaf Area ◽  
Light Transmission ◽  
Stand Density ◽  
Canopy Gaps ◽  
Light Competition ◽  
Area Index ◽  
Mixedwood Forests ◽  
Key Words Competition

This study examines light competition between aspen and spruce during the sequence of aspen development. Leaf area index and light transmission were measured or estimated for aspen stands from 2 to 125 years old. Light transmission was lowest at 15-25 years, and in some stands, transmission was less than 5% of above-canopy light. Hypothetical aspen stands with various stem configurations and heights were developed, and positions were identified that would meet or fail Alberta free-to-grow (FTG) standards. Light transmission was estimated at each position with the MIXLIGHT forest light simulator. Positions in canopy gaps or at the northern sides of canopy gaps had higher light. In general, however, there was little difference in available light between positions that met or failed FTG criteria. Stand density and size of aspen trees appears to be a better index to predict light transmission and spruce success in juvenile aspen stands than current FTG criteria. Key words: competition, free to grow, hardwood, spruce, light

MEASUREMENT OF EVAPORATION FROM SOIL BENEATH CROP CANOPIES

1983 ◽  
Vol 63 (1) ◽  
pp. 137-141 ◽  
Author(s):  
G. K. WALKER
Keyword(s):  
Zea Mays ◽  
Key Words ◽  
Leaf Area ◽  
Energy Supply ◽  
Zea Mays L ◽  
Growing Season ◽  
Soil Core ◽  
Crop Cover ◽  
Intact Soil Core ◽  
Intact Soil

Evaporation rates beneath maize canopies were measured using an intact soil core technique. Early in the growing season evaporation rates were periodically high (4.0 mm∙day−1) following rain, but declined rapidly. At full crop cover, when energy supply normally limits evaporation, significant differences in evaporation were detected between canopies with leaf area indices of 3.0 and 4.0. Key words: Evaporation measurement, energy supply, Zea mays L., leaf area, soil evaporimeter, lysimeter

Bioecological features of the species of Ligustrum L. in conditions of Absheron and use in landscaping

2021 ◽  
Vol 08 (03) ◽  
pp. 4-7
Author(s):  
Tofiq Sadıq oğlu Məmmədov ◽  
◽  
Şəlalə Adil qızı Gülməmmədova ◽  
Leyla Fərman qızı Mustafayeva ◽  
◽  
...  
Keyword(s):  
Key Words ◽  
Ornamental Plants ◽  
Research Work

In the research work carried out at the Institute of Dendrology of ANAS, species of Ligustrum L. were introduced into the in conditions of Absheron, their bioecological features were studied and various forms of compositions were created using these plants in the Arboretum. It was revealed that introduced ornamental plants adapt well under Absheron conditions and are recommended for use in creating various forms of compositions in parks and gardens. Key words: ligustrum, compositions, plant, ornamental, park

Abstract 229: What is the Real Incidence of Out-Of-Hospital Cardiac Arrest in Norway

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Ingvild B Tjelmeland ◽  
Morten Larsen ◽  
Eirik Skogvoll ◽  
Jo Kramer-Johansen
Keyword(s):  
Cardiac Arrest ◽  
Data Collection ◽  
National Registry ◽  
Population Incidence ◽  
Ambulance Dispatch ◽  
High Incidence ◽  
Close Relationship ◽  
Low Incidence ◽  
Study Sites ◽  
Hospital Cardiac Arrest

Purpose of the study: The Norwegian Cardiac Arrest Registry (NorCAR) is a mandatory national registry of resuscitation attempts that monitors the population incidence, care and outcome for cardiac arrest. Previously, substantial differences in the number of included patients per 100 000 inhabitants were observed in some “atypical” health trusts (HT). It was not known if this is a problem with data collection or reflected genuine population differences. The purpose of this study was to identify all patients that fill NorCAR’s inclusion criteria among these HTs, by imposing consistent methods for data collection. Materials and methods: The registry implemented consistent, standardised and rigorous data collection methods including targeted audits in four “atypical” health trusts, two with a high and two with a low reported population incidence. Registrations from January to March 2019 was compared with similar results from 2018. Results: In 2018, the observed nationwide annual incidence of out-of-hospital cardiac arrest was 64 per 100 000 inhabitants, varying from 40 to 102. At the four study sites the observed population incidence was stable among HT with high incidence (88 and 110) but apparently increased in the two HTs with previous low incidence after implementation of standardised collection method (from 48 to 56, and 46 to 54). Conclusions: The previously “atypical” low incidence probably reflected a problem with data collection. To achieve full coverage of the population, all data collectors need to collect data using the same method with a concise and thorough investigation of ambulance-, air ambulance-, dispatch-, and hospital records. Data collectors need to have a close relationship with ambulance and dispatch, and constant reminders and feedback on reported results are important. Implementing a new method for data collection takes time, and results need to be evaluated over time.

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