B Ajithkumar
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View article: Influence of Agrometeorological Indices on Phenology of African Marigold (Tagetes erecta L.)
Influence of Agrometeorological Indices on Phenology of African Marigold (Tagetes erecta L.) Open
The present study was conducted from 15th June to 1st November 2024 at the Research Farm of Kerala Agricultural University, Vellanikkara, to evaluate the duration, influence of weather variables on crop phenology and growing degree days (G…
View article: Development of Weather-based Yield Prediction Model for Ginger (Zingiber officinale) Using Principal Component Analysis
Development of Weather-based Yield Prediction Model for Ginger (Zingiber officinale) Using Principal Component Analysis Open
Ginger (Zingiber officinale) is a herbaceous perennial plant widely recognized as a popular spice across the world. India ranks as the largest producer and consumer of ginger globally. However, ginger cultivation faces several production c…
View article: Optimizing Carbon Sequestration: The Role of Coconut Palm in Agroforestry
Optimizing Carbon Sequestration: The Role of Coconut Palm in Agroforestry Open
Terrestrial carbon sequestration is an essential tactic for mitigating climate change, because atmospheric carbon dioxide (CO2) has increased significantly since pre-industrial times. The potential of the perennial coconut palm (Cocos nuci…
View article: Mitigating High Temperature Stress in Rice (Oryza sativa L.) with Osmoprotectant Foliar Sprays at Various Phenophases
Mitigating High Temperature Stress in Rice (Oryza sativa L.) with Osmoprotectant Foliar Sprays at Various Phenophases Open
Pot experiment was conducted to assess the effects of high-temperature stress on rice (Oryza sativa L.) and to identify effective mitigation strategies in kharif season (2023) in the Department of Agricultural Meteorology, Kerala Agricultu…
View article: Geospatial Technologies for Drought Mapping and Management in Kerala
Geospatial Technologies for Drought Mapping and Management in Kerala Open
View article: Impact of Weather Variables on Phenophase and Yield of Kharif Rice (Oryza sativa L.) in Central Zone of Kerala
Impact of Weather Variables on Phenophase and Yield of Kharif Rice (Oryza sativa L.) in Central Zone of Kerala Open
Rice is the most commonly consumed crop worldwide, serving as a staple food for almost half of the global population. A field experiment was conducted at the Agricultural Research Station, Mannuthy, Kerala Agricultural University, Kerala d…
View article: Yield Variability in Response to Planting Dates and Weather Conditions for Strawberry (Fragaria x ananassa Duch.) at Kerala’s High Ranges (Wayanad), India
Yield Variability in Response to Planting Dates and Weather Conditions for Strawberry (Fragaria x ananassa Duch.) at Kerala’s High Ranges (Wayanad), India Open
The modern cultivated strawberry (Fragaria x ananassa Duch.) is a highly valuable crop, known for its quick return on investment and adaptability to varying climates. This study examines how different planting dates and weather conditions …
View article: RETRACTED: Phenophasic model of mango using weather variables and remote sensing
RETRACTED: Phenophasic model of mango using weather variables and remote sensing Open
The authors have requested that this preprint be removed from Research Square.
View article: Estimation of Rice Crop Acreage in Kuttanad Region, Kerala Using Landsat 8 OLI IMAGES and GIS Techniques
Estimation of Rice Crop Acreage in Kuttanad Region, Kerala Using Landsat 8 OLI IMAGES and GIS Techniques Open
Aims: The study aimed to delineate rice accurately (Oryza sativa L.) cultivation areas in the Kuttanad region, Kerala, during the Puncha season of 2023-24 using medium- to high-resolution optical satellite data, particularly Landsat 8 Oper…
View article: Evaluating precipitation patterns of Vellanikkara, Kerala using SPI approach under future climatic scenarios
Evaluating precipitation patterns of Vellanikkara, Kerala using SPI approach under future climatic scenarios Open
View article: Mushroom Cultivation MOOC at Kerala Agricultural University: Garrett Ranking Analysis of Constraints to Enhance Online Agriculture Learning
Mushroom Cultivation MOOC at Kerala Agricultural University: Garrett Ranking Analysis of Constraints to Enhance Online Agriculture Learning Open
Participants in this extensive Massive Open Online Course (MOOC) on mushroom cultivation will gain a wealth of knowledge and useful skills necessary for cultivating a wide variety of mushrooms. In this study, the Center for e-learning at K…
View article: Estimating irrigation water requirement in rice by integration of satellite data and agrometeorological indices in Palakkad, Kerala
Estimating irrigation water requirement in rice by integration of satellite data and agrometeorological indices in Palakkad, Kerala Open
The sustainability of irrigated agriculture is jeopardized by catastrophic climate change, with projected forecasts indicating that by 2025, one out of every four people on the planet will be experiencing extreme water scarcity. In this co…
View article: Phasic Development of Rice During the Present and Future Climatic Conditions in Central Zone of Kerala
Phasic Development of Rice During the Present and Future Climatic Conditions in Central Zone of Kerala Open
Rice is a staple food and its demand is substantially increasing with the growth of the global population. Phenological development was found to play a significant role in the distribution of carbon among plant organs, which has an impact o…
View article: Impact of Climate Change on Crop Water Requirement of Rice in Central Zone of Kerala : An Assessment Using CROPWAT Model
Impact of Climate Change on Crop Water Requirement of Rice in Central Zone of Kerala : An Assessment Using CROPWAT Model Open
View article: Impact of climate change on rice yield under projected scenarios in central zone of Kerala
Impact of climate change on rice yield under projected scenarios in central zone of Kerala Open
The future climate for central zone of Kerala was estimated with climate change projections generated using ECHAM model and GFDL-CM3 model for 2030, 2050 and 2080 based on RCP 4.5 and RCP 8.5. The information gathered was used in the DSSAT…
View article: Assessment of high rainfall events and drought over Kerala for planning agricultural operations
Assessment of high rainfall events and drought over Kerala for planning agricultural operations Open
India being an agricultural country, its growth purely depends on the weather and in particular the extreme weather events.Ajithkumar and Sreekala (2015) reported that mean annual rainfall for the state Kerala as whole is 2956.4 ± 392 mm w…
View article: Intercomparison of seven Temperature-Humidity Index (THI) equations for assessing the impact of heat stress in relation to milk production to find out best THI for central zone of Kerala
Intercomparison of seven Temperature-Humidity Index (THI) equations for assessing the impact of heat stress in relation to milk production to find out best THI for central zone of Kerala Open
सार -मवे िशय� �ारा अनु भव �कए गए ऊष मा �ितबल को तापमान आ�र ता सस ूकाा क (THI) �ारा िनधार ्रत �कया जा सकता है । इस शोध
View article: Growing season weather impacts on rice phenology development in the central zone of Kerala
Growing season weather impacts on rice phenology development in the central zone of Kerala Open
The present study was carried out to assess the impact of weather variables on rice phenology. The field experiment was conducted at agricultural research station, Vellanikkara during kharif season. The experiment was laid out in split plo…
View article: Rice yield forecasting using principal component regression and composite weather variables
Rice yield forecasting using principal component regression and composite weather variables Open
Reliable and timely forecasting helps policy makers and farmers to carry out proper crop planning. Weather based crop forecasting is having a paramount importance, since more than 50% of crop loss is due to uncertainties in weather. In thi…
View article: Influence of weather parameters on the growth and yield of cowpea in central zone of Kerala
Influence of weather parameters on the growth and yield of cowpea in central zone of Kerala Open
The Field experiment was conducted during the period, 2018 November to 2019 March. The experiment was laid out in split plot design, the main plot treatment was taken as date of planting. There were three dates of planting 5th November, 25…
View article: Influence of weather parameters on incidence of cowpea pod borer in central zone of Kerala
Influence of weather parameters on incidence of cowpea pod borer in central zone of Kerala Open
Cowpea is an annual herbaceous legume and is a main crop across Africa and Asia. It can be grown in sandy soil and is susceptible to low rainfall conditions. Cowpea pod borer (Muraca vitrata) is the main pest of cowpea. Weather factors aff…
View article: Seasonal Influence on the Quality and Yield of Four Different Cassava Varieties Grown in the Central Midland Agro-ecological Zone of Kerala
Seasonal Influence on the Quality and Yield of Four Different Cassava Varieties Grown in the Central Midland Agro-ecological Zone of Kerala Open
Studies on crop-weather relations in cassava varieties were carried out for three plantings viz., May, October and December at Agronomy farm, College of Horticulture, Vallanikkara. Four varieties of two short-duration, (VellayaniHraswa and…
View article: Weather related yield constraints and optimum date of planting for rainfed rice (Oryza sativa) in central zone of Kerala
Weather related yield constraints and optimum date of planting for rainfed rice (Oryza sativa) in central zone of Kerala Open
Weather is the most determining factor in rain fed rice production. A field experiment was carried out during kharif season, 2019 at Agricultural research station, Mannuthy. The experiment was laid out in split plot design with five dates …
View article: Influence of weather on groundnut (Arachis hypogaea L.) yield, growth and development in central zone of Kerala
Influence of weather on groundnut (Arachis hypogaea L.) yield, growth and development in central zone of Kerala Open
An experiment was conducted to study the influence of weather parameters on growth indices of groundnut using split plot design with four planting dates viz., November 1st, November 15th, December 1st, and December 15th. The groundnut vari…
View article: Climate change impact on summer rice production in central agro-climatic zone of Kerala under different RCP’s
Climate change impact on summer rice production in central agro-climatic zone of Kerala under different RCP’s Open
Agriculture is always vulnerable to unfavorable weather events and climate conditions. Despite technological advances such as improved crop varieties and irrigation systems, weather and climate are still key factors in agriculture producti…
View article: Evaluation of CERES-Rice model for the selected rice varieties of Kerala
Evaluation of CERES-Rice model for the selected rice varieties of Kerala Open
A field experiment was conducted at Thrissur during kharif seasons of 2013 and 2014 using two rice varieties (Jyothi and Kanchana) and five dates of planting (June 5th, June 20th, July 5th, July 20th and August 5th). CERES-Rice model of DS…
View article: Rainfall variability over Kerala
Rainfall variability over Kerala Open
However, recent changes in rainfall trends in different districts of Kerala have not been studied.Hence, an attempt is made to understand the recent trends in rainfall in various districts of Kerala.Spatial and temporal variation in annual…