Influence of weather factors

The influence of abiotic factors on the charcoal rot incidence caused by the fungus M. phaseolina has been analysed statistically by subjecting weekly weather data with disease incidence data to Multiple Linear Regression analysis. It revealed that there was no significant relation was observed in rainfall and minimum temperature with disease incidence.

7p chauchaungayxua10 19-03-2021 5 1   Download

The present investigation was made to explore the occurrence, fluctuation and its diversity in snake gourd ecosystem.

9p trinhthamhodang1216 19-11-2020 12 2   Download

This observation is generally related to the fact that shootfly populations remain very low during the hot and dry season and the beginning of the following rainy season (Starks, 1970)[15] .

7p nguaconbaynhay7 15-08-2020 11 1   Download

Thirty two species of tenebrionid beetles were collected using light trap at College of Agriculture campus, Hassan. The activity of tenebrionids was more during new moon day when it is compared to full moon day as the ratio between them is 1.98:1.08.

5p nguaconbaynhay7 15-08-2020 7 1   Download

The present investigation was carried out to study the seasonal abundance of Serpentine leaf miner, Liriomyza trifolii on tomato during 2017-18.

6p caygaocaolon6 30-07-2020 12 2   Download

The study on seasonal incidence of summer okra as influenced by weather parameters on aphid, lady bird beetle and syrphid fly showed its peak presence during 16th MW and maximum population of chyrsopa during 17th MW, predatory spider during 20th MW. The correlation studies indicated that aphid showed positively significant correlation with bright sunshine and negatively significant correlation with rainy days.

11p kethamoi6 29-06-2020 17 1   Download

Studies on seasonal incidence of aphid (Brevicoryne brassicae L.), infesting cabbage (Brassica oleracea var. capitata L.) work was carried out at College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during 2015-16 and 2016-17. The Brevicoryne brassicae L. damage was observed with a varying degree of infestation. The peak population of aphid, Brevicoryne brassicae L., was observed 172.5 / 20 plants and 140.45/ 20 plants in month of Febuary during both years (2015-16 and 2016-17), respectively.

6p quenchua4 06-04-2020 9 1   Download

Field experiments was conducted during kharif season 2014-2015 to study the influence of meteorological factors on the incidence of major pests of cotton. Incidence of aphids was initiated in 32nd MW (35.0/ leaf) and aphid population was lowest in 42nd and 43rd MW (0.2/ leaf). It has attained its initial peak during 32nd MW (35.0/ leaf) which was favored by min. temp. of 31.99oC and max. temp. of 33.59oC with morning 95.86 % and evening 78.86 % humidity along with 10.0 mm rainfall. Incidence of leaf hoppers was initiated in 34th Mw (0.

5p trinhthamhodang1212 04-04-2020 48 1   Download

This study was undertaken during kharif season in the year 2018 at AAU, Jorhat, Assam to find out the effect of weather factors on the initiation of collar rot disease of soybean. The soybean crop was sown through field trials and the experiment was laid out in a Randomized Complete Block Design (RCBD). For data collection, a roving survey was conducted following a zig-zag sampling pattern in the field.

9p caygaocaolon2 14-03-2020 16 2   Download

The objective of this paper is to study overall scenario of the cumin at the national and international level as well as to analyze the perception of traders’ on the major factors influencing cumin prices in the spot market. India contributes about 70 per cent of world cumin production followed by Syria, Iran and other countries. India accounts for 73 per cent of the Global trade. For analysing the perception of traders regarding factors affecting prices of the Cumin twenty factors have been considered in this study.

9p cothumenhmong3 22-02-2020 22 0   Download

A study was conducted to assess the population dynamics of sugarcane web mite, Schizotetranchyus andropogoni Hirst during June 2017 to May 2018 in field condition at Sugarcane Research Station (SRS), Cuddalore district. The population density of sugarcane web mite, S. andropogoni of mite touched its peak (10.45 mites / 2cm2 area of leaf) during the first week of May 2018 (18th SMW) and the mite population declined during the first week of September 2017 (35th SMW) to last week of December 2017 (8.43 to 4.53 mites / 2cm2 area of leaf).

8p trinhthamhodang3 17-02-2020 30 1   Download

Climate change has emerged as the most serious environmental challenges. It is necessary to evaluate its impacts on climate-vulnerable development sectors, such as agriculture. Human impacts on environment have resulted in altered environmental conditions that influence changes in abundance and diversity of insect pests. In the present study, an attempt was made to determine the impact of changes in the climatic conditions on grape crop in Tasgaon tehsil. Various weather parameters like rainfall, temperature and relative humidity were analyzed in the region.

8p nguathienthan2 19-12-2019 15 1   Download

Tomato leaf curl virus (ToLCV) has become a major threat of Tomato (Solanum lycopersicum) production in the world including tropical and subtropical tomato growing regions due to its the endemic presence. The aim of this study is to develop a forewarning strategy for the farmers. The components included in the experiment were, a susceptible tomato variety “Patharkuchi” planted at 15 days interval starting from16th August to 29th December during both the experimental year 2012-13 and 2013-14 under field condition.

17p nguathienthan2 19-12-2019 23 1   Download

Seasonal incidence of blackfly, Aleurocanthus woglumi Ashby and citrus psyllids Diaphorina citri Kuwayama were studied on acid lime during September 2017 to August 2018. The influence of weather factors on population fluctuation of sucking pests in acid lime ecosystem was recorded at weekly intervals in fixed location. The study revealed that the occurrence of sucking pests was noticed throughout the study period 36th (1st week of September) to 35th (4th week of August) standard weeks. The population of D. citri attained its first peak during 19th standard week (1stweek of May) with 23.

8p quenchua2 16-12-2019 8 0   Download

A field experiment was conducted at Main Agriculture Research Station, University of Agriculture Sciences, Dharwad, to study the disease development in relation to weather parameters, which clearly depicts the relationship between the weather factors like temperature, relative humidity, rainfall and number of rainy days with the development of the maydis leaf blight of maize. Observations were taken from 31st standard week to 39th standard weeks at weekly interval. The PDI was lowest during 31st standard week (8.34 %) and increased throughout the cropping period.

6p cothumenhmong1 11-12-2019 9 0   Download

Remote sensing has several advantages in the field of agronomical research purpose. The assessment of agricultural crop canopies has provided valuable insights in the agronomic parameters. Remote sensing play a significant role in crop classification, crop monitoring and yield assessment. The use of remote sensing is necessary in the field of agronomical research purpose because they are highly vulnerable to variation in soil, climate and other physico- chemical changes.

14p nguaconbaynhay1 04-12-2019 27 2   Download

A major nutritional problem to crops grown in highly weathered Brazilian soils is phosphorus (P) deficiencies linked to their low availability and the capacity of the soils to fix P in insoluble forms. Our studies examined factors that might influence P behavior in soils of the Amazon region.

9p mentospurefresh 29-11-2019 21 0   Download

In Ha Noi Zoo, northern Vietnam, time budget and diet of a 10-individual group of Macaca leonina and some ecological factors (temperature, humidity, human impact) were studied to determine its adaptation to the weather in the northern region of the country. Methods for the present study comprise focal time sampling and ad libitum. The study results showed that the species activities are not influenced by temperature and humidity, but strongly impacted by humans. There were linear regressions between the human impact and several activities of the species.

6p shiwo_ding7 05-06-2019 21 0   Download

In Canada, other factors such as digester insulation, because of cold weather, also influence the final cost of such a system. To be economical, digester capital cost must be offset by energy savings, fertilizer use, and bedding replacement . Another disadvantage 17 is that fresh poultry manure can be hauled as solid manure, but if digested, the dilution water would increase the original volume by about four times . As well, the biogas produced has low energy per unit volume and can only be used for on-site operations such as running an electrical generator.

63p loginnhanh 22-04-2013 52 2   Download

Because time-series studies focus on a given geographic location over a number of years, factors that are often thought to influence the health of the population, such as percentage of smokers, income level, occupational exposure to pollutants, access to medical care and age distribution, do not need to be incorporated into the analysis as they are considered to remain relatively constant within the study area over time. Typically, the only other factors aside from pollution included in these models are weather variables and seasonal controls.

43p saimatkhauroi 01-02-2013 56 5   Download