땅콩의 복합병 저항성 탐색

SNEH MATHUR,ANILA DOSHI 한국응용곤충학회 1987 한국응용곤충학회지 Vol.26 No.4

131개 땅콩품종을 공시하여 녹병, 검은무늬병, Phaeoisariopsis 점무늬병에 대한 복합저항성을 조사한 결과 7개품종이 저항성이었고 11개품종은 중도저항성이었다. 각 품종들의 발병 정도와 수량에 대한 효과가 논의되었다. One thirty one varieties of Groundnut were screened for search of multiple disease resistance against rust caused by Puccinia arachidis speg. and leaf spots caused by Cereospora arachidis Hori and Phaeoisariopsis personata . Out of these, 7 were resistant, and 11 were moderatly resistant. Percent disease severity and its' effect on yield was assessed.

생강 뿌리썩음증상의 병징학, 기생체간 상호작용 및 약제방제

ANIL DOSHI,SNEH MATHUR 한국응용곤충학회 1987 한국응용곤충학회지 Vol.26 No.4

뿌리썩음증상은 병징에 따라 3가지로 대별되었다. 뿌리썩음증상은 Pythium aphanidermatum을 선접종 후 Fusarium solani를 후접종 하였을 때 가장 심하였다. 뿌리혹선충과 Phthium aphanidermatum과의 상호작용은 없었다. 근경 발아는 각 처리에서 현저히 증가하였고 Alliette 0.25% 처리에서 가장 높았다. 토양관주에 의한 치료 및 예방효과는 Alliette, Burgandy mixture, 다이센 M-45, 디포라탄이 우수하였으며, 수량도 증가하였다. Three diffeerent types of symptoms were observed according to the pathogen associated with the rhizomes. The maximum rotting was observed in case when Pythium aphanidermatum was inoculated first followed by Fusarium solani. There was no interaction in case of root knot nematode Meloidogyne incognita and Pythium aphanidermatum. Average per cent germination of the rhizomes were increased significantly in each treatment and maximum in case of Alliette(.25%). The per cent pre & post drenching rotting was minimum in case of Alliette, Burgandy mixture, Dithane-M 45 and Difolatan. These fungicides also increase the yield of rhizome significantly.

Weibull and Generalized Extreme Value Distributions for Wind Speed Data Analysis of Some Locations in India

Arnab Sarkar,Sneh Deep,D. Datta,Amit Vijaywargiya,R. Roy,V. S. Phanikanth 대한토목학회 2019 KSCE Journal of Civil Engineering Vol.23 No.8

Wind velocity data modeling plays a crucial role for the estimation of wind load and wind energy. Apart from these, the same modeling must also be used in the load cycle analysis of fatigue failure in slender structures to address periodic vortex shedding. Most authors fitted the entire available range of wind velocities of various locations using Weibull models. However, they did not check the validity of the model in describing the range of extreme wind velocity. In this work, the validity of Weibull models for describing parent as well as extreme hourly mean wind velocity data for four places on the east coast of India has been checked. While it predicts lower wind speeds accurately, the Weibull model has been found to become inappropriate for describing wind velocity in the range of extremes, i.e., above a certain threshold value. Therefore, this article focuses on the techniques of determininga limiting wind velocity beyond which the Weibull distribution is rendered unsuitable. In the range where the Weibull distributionfails, various extreme value distributions, such as Gumbel, Fréchet and reverse Weibull distributions have been compared, therebydetermining the best estimator for each location.

Weibull Model for Wind Speed Data Analysis of Different Locations in India

Arnab Sarkar,Gaurav Gugliani,Sneh Deep 대한토목학회 2017 KSCE JOURNAL OF CIVIL ENGINEERING Vol.21 No.7

Wind speed data should be fitted by a suitable statistical model like Weibull to determine expected number of hours per year in the critical wind speed range for a slender structure, which is required to determine the expected number of stress cycles in the projected working life of the structure. Apart from this, for the assessment of wind energy potential wind speed data should be fitted by an appropriate probability distribution. In the present scope of study, wind data of various locations of India have been fitted by Weibull model. Wind speed data are initially sampled in knot by Indian Meteorological Department and later converted into integer km/h before supplying them to the end user. Due to this conversion, wind speed data cannot be properly fitted by Weibull distribution and in this regard, the choice of appropriate class width becomes very much important. Without the choice of appropriate class width, estimated Weibull parameters become biased which would yield incorrect estimation of expected number of hours in critical wind speed ranges as well as wind energy potential. After taking appropriate class width of 4 km/h, it has been found that Weibull model is an adequate model to describe wind speed distributions of India. Weibull model has also been compared with other models such as Gamma and inverse Weibull distributions to establish its suitability than the others. In this study, the values of Weibull shape parameters vary from 1.3 to 2.3, whereas the values of scale parameters vary from 1.4 m/s to 6.5 m/s. The validity of Weibull model is also verified with a target confidence interval of 90%. The uncertainties involved in the estimation of available wind energy potential as well as the expected number of hours per year in critical wind speed ranges have also been considered due to random variation of wind climate in each year.

단일살균제에 의한 땅콩 녹병과 검은무늬병의 관리

B.B. LAL THAKORE,SNEH MATHUR,R.B. SINGH 한국응용곤충학회 1987 한국응용곤충학회지 Vol.26 No.2

땅콩녹병과 검은 무늬병을 방제하기 위한 살균제를 선정하기 위하여 실내와 포장에서 실험한 결과 12개 공시약제중 Biloxazole이 상기 두 병해의 동시방제에 효과적이었으며 땅콩 수량도 증진되였다. Out of twelve fungicides evaluated in vitro and in vitro to manage rust and leaf spot diseases: Biloxazole was found to control both the diseases simultaneously and also increased the yield of peanut.

Anatomical considerations of percutaneous transvenous mitral annuloplasty

Lalit Mehra,Shashi Raheja,Sneh Agarwal,Yashoda Rani,Kulwinder Kaur,Anita Tuli 대한해부학회 2016 Anatomy & Cell Biology Vol.49 No.1

Percutaneous transvenous mitral annuloplasty (PTMA) has evolved as a latest procedure for the treatment of functional mitral regurgitation. It reduces mitral valve annulus (MVA) size and increases valve leaflet coaptation via compression of coronary sinus (CS). Anatomical considerations for this procedure were elucidated in the present study. In 40 formalin fixed adult cadaveric human hearts, relation of the venous channel formed by CS and great cardiac vein (GCV) to MVA and the adjacent arteries was described, at 6 points by making longitudinal sections perpendicular to the plane of MVA, numbered 1–6 starting from CS ostium. CS/GCV formed a semicircular venous channel on the atrial side of MVA. Based on the distance of CS/GCV from MVA, two patterns were identified. In 37 hearts, the venous channel at point 2 was widely separated from the MVA compared to the two ends and in three hearts a nonconsistent pattern was observed. GCV crossed circumflex artery superficially. GCV or CS crossed the left marginal artery and ventricular branches of circumflex artery superficially in 17 and 23 hearts, respectively. As the venous channel was related more to the left atrial wall, PTMA devices probably exert an indirect traction on MVA. The arteries crossing deep to the venous channel may be compressed by PTMA device leading to myocardial ischemia. Knowledge of the spatial relations of MVA and a preoperative and postoperative angiogram may help to reduce such complications during PTMA.

Oil Cake 토양첨가에 의한 생강뿌리썩음병의 방제

LAL THAKORE B.B.,SNEH MATHUR,R.B. SHINGH,B.P. CHAKRAVARTI 한국응용곤충학회 1987 한국응용곤충학회지 Vol.26 No.4

토양에 첨가한 8종의 Oil cake 중 Margosa, Undi, Karanj cake은 생강뿌리썩음병의 발생을 억제하였다. 생강수량의 증진효과는 Karanj, Roselle, Mustard cake의 순으로 높았다. Out of 8 oil cakes used for soil amendment, Margosa, Undi and Karanj cakes were found to reduce the ginger rot. However, maximum increase in yield was found in Karanj cake followed by Roselle and Mustard cakes.

薄層 크로마토그라피와 指標 곰팡이의 利用에 의한 밀에 있어서 Triadimefon의 잔류량 분석

KALPNA BHATNAGAR,B.B. LAL THAKORE,SNEH MATHUR,B.P. CHAKRAVARTI 한국응용곤충학회 1986 한국응용곤충학회지 Vol.25 No.4

Macrophomina phaseolina균(菌)을 이용(利用)하여 살균제 Triadimefon의 밀 품종 Kharchia와 Lal Bahadur에 있어서 수확후의 잔류량을 조사한 결과 살포식물의 밀짚에서는 Triadimefon이 검출되었으나 밀 종자에서는 검출되지 않았다. 잔류량 조사를 위해 개발된 박층(薄層) 크로마토그라피에 의하여도 동일한 결과를 얻었다. 기주체내에서 Triadimefon은 Triadimenol로 전환되었다. By using the test fungus Macrophomina phaseolina, residues of triadimefon were found in straw collected after harvest from sprayed plants of wheat varieties Kharchia and Lal Bahadur but grains contain no such residues. Thin layer chromatographic method was developed to detect residues of the fungicide which was found to be present in straw of sprayed plants of both the varieties. No residues could be detected in grain samples. It was found that triadimefon was converted in triadimenol in/to host.

Soil Amendment wit Oil Cakes in Ginger Field for Rhizome Rot Control

랄타코레,마투르,차크라바르티,Lal Thakore B.B.,Mathur Sneh,Singh R.B.,Chakravarti B.P. Korean Society of Applied Entomology 1987 한국식물보호학회지 Vol.26 No.4

토양에 첨가한 8종의 Oil cake 중 Margosa, Undi, Karanj cake은 생강뿌리썩음병의 발생을 억제하였다. 생강수량의 증진효과는 Karanj, Roselle, Mustard cake의 순으로 높았다. Out of 8 oil cakes used for soil amendment, Margosa, Undi and Karanj cakes were found to reduce the ginger rot. However, maximum increase in yield was found in Karanj cake followed by Roselle and Mustard cakes.