Pub Date : 2024-07-10DOI: 10.9734/ijecc/2024/v14i74279
Chinmoy Deori, Pratishruti Behera, Anjan Sharma, Mriganko Kakoti, Juman Das, A. P. Singh, Bhim Singh, Reemashree Das
The increasing demands of a growing population pose a serious danger to global food and nutritional security due to the detrimental impacts of climate change on crop growth and agricultural production, both in terms of quantity and quality. Climate change impacts on income, livelihoods, and population health are directly related to factors including increasing temperatures, erratic rainfall, and extreme weather events. Agronomic practices that are robust to climate change have the potential to improve the current state of matters, maintain agricultural productivity globally, especially in a sustainable way, and accomplish the Sustainable Development Goals (SDGs). Agricultural scientists are anticipated to be crucial in this scenario in advancing the shift to climate-resilient agriculture (CRA), enhancing the conversion of conventional to sustainable food systems, and serving as liaisons between farmer practices and technological developments. In this study, we offer a road map for increased agricultural sustainability that includes the efficient application of technological advancement, policies and plan that will support the intensification of sustainable agriculture and climate resilience.
{"title":"Climate Resilient Agriculture: Enhancing Agricultural Sustainability in the Face of Climate Change Scenario","authors":"Chinmoy Deori, Pratishruti Behera, Anjan Sharma, Mriganko Kakoti, Juman Das, A. P. Singh, Bhim Singh, Reemashree Das","doi":"10.9734/ijecc/2024/v14i74279","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74279","url":null,"abstract":"The increasing demands of a growing population pose a serious danger to global food and nutritional security due to the detrimental impacts of climate change on crop growth and agricultural production, both in terms of quantity and quality. Climate change impacts on income, livelihoods, and population health are directly related to factors including increasing temperatures, erratic rainfall, and extreme weather events. Agronomic practices that are robust to climate change have the potential to improve the current state of matters, maintain agricultural productivity globally, especially in a sustainable way, and accomplish the Sustainable Development Goals (SDGs). Agricultural scientists are anticipated to be crucial in this scenario in advancing the shift to climate-resilient agriculture (CRA), enhancing the conversion of conventional to sustainable food systems, and serving as liaisons between farmer practices and technological developments. In this study, we offer a road map for increased agricultural sustainability that includes the efficient application of technological advancement, policies and plan that will support the intensification of sustainable agriculture and climate resilience.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":"70 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141662842","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}
Pub Date : 2024-07-10DOI: 10.9734/ijecc/2024/v14i74280
Shreya Soneshwar, Deepali Vishwakarma, A. G. Sirohi, Sudish Kumar, Yogesh Kumar, Sanju Singh, A. K. Bhowmick
This study investigates the relationship between climatic factors and the population dynamics of the rice earhead bug (Leptocorisa acuta) in Balaghat district of Madhya Pradesh. Through correlational analysis, we examined the associations between rainfall, rainy days, morning relative humidity (RH), evening RH, evening vapour pressure, wind velocity, maximum temperature, morning vapour pressure, evaporation, sunshine, and the prevalence of rice earhead bugs. Results indicate a negative correlation between rice earhead bug population and both rainfall and rainy days, suggesting a potential suppression effect of increased precipitation on bug abundance. Morning RH, evening RH, evening vapour pressure, and wind velocity showed non-significant negative correlations with bug population, indicating that these factors may have limited influence on bug dynamics in our study area. Conversely, a positive non-significant correlation was observed between rice earhead bug population and maximum temperature, morning vapour pressure, evaporation, and sunshine. This implies that higher temperatures and increased solar radiation may have a subtle positive effect on bug abundance, although further investigation is warranted to elucidate the underlying mechanisms. Overall, our findings shed light on the complex interplay between climatic factors and rice earhead bug dynamics, highlighting the importance of considering multiple variables in pest management strategies for rice cultivation.
{"title":"Study of Seasonal Incidence of Rice Earhead Bug (Coreidae: Hemiptera)","authors":"Shreya Soneshwar, Deepali Vishwakarma, A. G. Sirohi, Sudish Kumar, Yogesh Kumar, Sanju Singh, A. K. Bhowmick","doi":"10.9734/ijecc/2024/v14i74280","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74280","url":null,"abstract":"This study investigates the relationship between climatic factors and the population dynamics of the rice earhead bug (Leptocorisa acuta) in Balaghat district of Madhya Pradesh. Through correlational analysis, we examined the associations between rainfall, rainy days, morning relative humidity (RH), evening RH, evening vapour pressure, wind velocity, maximum temperature, morning vapour pressure, evaporation, sunshine, and the prevalence of rice earhead bugs. Results indicate a negative correlation between rice earhead bug population and both rainfall and rainy days, suggesting a potential suppression effect of increased precipitation on bug abundance. Morning RH, evening RH, evening vapour pressure, and wind velocity showed non-significant negative correlations with bug population, indicating that these factors may have limited influence on bug dynamics in our study area. Conversely, a positive non-significant correlation was observed between rice earhead bug population and maximum temperature, morning vapour pressure, evaporation, and sunshine. This implies that higher temperatures and increased solar radiation may have a subtle positive effect on bug abundance, although further investigation is warranted to elucidate the underlying mechanisms. Overall, our findings shed light on the complex interplay between climatic factors and rice earhead bug dynamics, highlighting the importance of considering multiple variables in pest management strategies for rice cultivation.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":"28 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141658842","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}
Pub Date : 2024-07-10DOI: 10.9734/ijecc/2024/v14i74281
E. Vyshnavi, M. Latha, P. M. Vani, D. Ramesh
An investigation was carried out to study the different potassium release parameters in rice based cropping systems (viz. Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems) of Bapatla district of Andhra Pradesh and their relation with rice yield and rice equivalent yield of different cropping systems. Step-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 505-1266, 414 -884, 742-1296 and 776-1369 mg kg-1 with the mean values of 954, 563, 965 and 1067 mg kg-1, respectively. Constant-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 17-28, 11-22, 17-25and 14-27mg kg-1 with the mean values of 23, 17, 21 and 20 mg kg-1, respectively. Cumulative-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 607-1466, 480-1038, 889-1496 and 930-1585 mg kg-1 with the mean values of 1119, 672, 1123 and 1223 mg kg-1, respectively. The highest potassium release parameters such as step-K and cumulative K observed in rice-sorghum cropping system and the lowest in rice-groundnut cropping system. Lower amounts of cumulative K were observed in all soils except in soils of Kodiparru and Ananthavaram villages under present investigation. Lower cumulative K and continuous cropping would lead to depletion of soil K reserves and result in K deficiency. Among the K release i.e cum- K and step K obtained with boiling 1N HNO3 showed maximum positive and significant correlation with rice yield and rice equivalent yield while, constant K showed minimum correlation.
{"title":"Potassium Release Parameters and their Relation with Yield of Rice Based Cropping Systems in Bapatla District, India","authors":"E. Vyshnavi, M. Latha, P. M. Vani, D. Ramesh","doi":"10.9734/ijecc/2024/v14i74281","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74281","url":null,"abstract":"An investigation was carried out to study the different potassium release parameters in rice based cropping systems (viz. Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems) of Bapatla district of Andhra Pradesh and their relation with rice yield and rice equivalent yield of different cropping systems. Step-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 505-1266, 414 -884, 742-1296 and 776-1369 mg kg-1 with the mean values of 954, 563, 965 and 1067 mg kg-1, respectively. Constant-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 17-28, 11-22, 17-25and 14-27mg kg-1 with the mean values of 23, 17, 21 and 20 mg kg-1, respectively. Cumulative-K values in Rice-Pulse, Rice-Groundnut, Rice-Maize and Rice-Sorghum cropping systems was in the range of 607-1466, 480-1038, 889-1496 and 930-1585 mg kg-1 with the mean values of 1119, 672, 1123 and 1223 mg kg-1, respectively. The highest potassium release parameters such as step-K and cumulative K observed in rice-sorghum cropping system and the lowest in rice-groundnut cropping system. Lower amounts of cumulative K were observed in all soils except in soils of Kodiparru and Ananthavaram villages under present investigation. Lower cumulative K and continuous cropping would lead to depletion of soil K reserves and result in K deficiency. Among the K release i.e cum- K and step K obtained with boiling 1N HNO3 showed maximum positive and significant correlation with rice yield and rice equivalent yield while, constant K showed minimum correlation.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":"48 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659976","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}
Pub Date : 2024-07-09DOI: 10.9734/ijecc/2024/v14i74278
M. L. Reager, Subhash Chandra, S.P. Singh, R. C. Bairwa, N. Kishor, Richa Pant, C. K. Dotaniya, Vinay Kumar, Sang-Min Chung, Anupama Singh, Chinmayee Mohapatra, Suvalaxmi Palei, Meenakshi Badu, Ankita Mohanty, M. Kabi, S. Kumaraswamy, B. S. Kherawat, Mahipal Singh Kesawat
Groundnut (Arachis hypogaea L.) stands as a significant oilseed crop globally. The growth, development, and productivity of these plants are notably affected by the adverse impacts of global climate change. Therefore, the current study sought to examine how diverse growing environments and planting densities influence the phenological development of groundnut in the hyper-arid zone of Rajasthan, India. A field experiment spanning the kharif seasons of 2017, 2018, and 2019 was conducted at Krishi Vigyan Kendra, Swami Keshwanand Rajasthan Agricultural University, Bikaner, India. The experiment laid out in split-plot design with four replications. The treatments included three main plots for growing environments (sowing on May 15, May 30, and June 15) and three sub-plots for planting densities (1.67 lakh ha-1, 2.50 lakh ha-1 and 3.33 lakh ha-1).. The outcomes of the field experiment indicates that sowing groundnut on May 30 was statistically on par with sowing on June 15 and resulted in higher values of GDD, helio thermal units (HTU), PTI, heat use efficiency (HUE), photothermal use efficiency (PUE), and heliothermal use efficiency, as well as hygrothermal use efficiency (Hg TUE-I and II) at the initiation of flowers and peg formation stages. However, at later growth stages significantly higher values of GDD, HTU, HUE, PUE, HgTUE-I and II were observed with the May 15 sowing. These values gradually decreased with delayed sowing up to May 30 and June 15. Further, increasing the planting density from 1.67 lakh ha-1, 2.50 lakh ha-1 and 3.33 lakh ha-1 significantly enhanced the HTU, HUE, PUE, HgTUE-I and II at various phenological stages of groundnut. Therefore, these findings underscore the significance of precise timing and density control in maximizing groundnut yields under challenging environmental circumstances. By understanding and modifying these variables, farmers can mitigate the adverse effects of climate change and enhance groundnut productivity, especially in extremely arid areas like Rajasthan.
{"title":"Influence of Diverse Growing Environments and Plant Densities on Phenological Development and Agrometeorological Indices of Groundnut (Arachis hypogaea L.) in the Hyper Arid Zone of Rajasthan, India","authors":"M. L. Reager, Subhash Chandra, S.P. Singh, R. C. Bairwa, N. Kishor, Richa Pant, C. K. Dotaniya, Vinay Kumar, Sang-Min Chung, Anupama Singh, Chinmayee Mohapatra, Suvalaxmi Palei, Meenakshi Badu, Ankita Mohanty, M. Kabi, S. Kumaraswamy, B. S. Kherawat, Mahipal Singh Kesawat","doi":"10.9734/ijecc/2024/v14i74278","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74278","url":null,"abstract":"Groundnut (Arachis hypogaea L.) stands as a significant oilseed crop globally. The growth, development, and productivity of these plants are notably affected by the adverse impacts of global climate change. Therefore, the current study sought to examine how diverse growing environments and planting densities influence the phenological development of groundnut in the hyper-arid zone of Rajasthan, India. A field experiment spanning the kharif seasons of 2017, 2018, and 2019 was conducted at Krishi Vigyan Kendra, Swami Keshwanand Rajasthan Agricultural University, Bikaner, India. The experiment laid out in split-plot design with four replications. The treatments included three main plots for growing environments (sowing on May 15, May 30, and June 15) and three sub-plots for planting densities (1.67 lakh ha-1, 2.50 lakh ha-1 and 3.33 lakh ha-1).. The outcomes of the field experiment indicates that sowing groundnut on May 30 was statistically on par with sowing on June 15 and resulted in higher values of GDD, helio thermal units (HTU), PTI, heat use efficiency (HUE), photothermal use efficiency (PUE), and heliothermal use efficiency, as well as hygrothermal use efficiency (Hg TUE-I and II) at the initiation of flowers and peg formation stages. However, at later growth stages significantly higher values of GDD, HTU, HUE, PUE, HgTUE-I and II were observed with the May 15 sowing. These values gradually decreased with delayed sowing up to May 30 and June 15. Further, increasing the planting density from 1.67 lakh ha-1, 2.50 lakh ha-1 and 3.33 lakh ha-1 significantly enhanced the HTU, HUE, PUE, HgTUE-I and II at various phenological stages of groundnut. Therefore, these findings underscore the significance of precise timing and density control in maximizing groundnut yields under challenging environmental circumstances. By understanding and modifying these variables, farmers can mitigate the adverse effects of climate change and enhance groundnut productivity, especially in extremely arid areas like Rajasthan.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":"122 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141665266","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}
Nowdays, the issue of global warming is being widely discussed in all countries, both developed and developing countries, because of its negative impact on the environment. This study aims to develop an integrated analytical framework of causality between energy consumption, carbon emissions, financial development, trade openness, and economic growth in Indonesia, 1990-2021. This study provides research benefits in the form of a set of empirical evidence to assist in developing a series of key strategies that can improve environmental quality through sustainable development. With granger causality analysis and vector autoregression model, this study provides results that high economic growth and energy consumption can cause environmental degradation through increased carbon gas emissions.
{"title":"Causality of Environmental Degradation and Economic Growth in Indonesia","authors":"Sri Rahayu Budi Hastuti, Didit Welly Udjianto, Rini Dwi Astuti, Ilyasin Aditya Rahman","doi":"10.9734/ijecc/2024/v14i74277","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74277","url":null,"abstract":"Nowdays, the issue of global warming is being widely discussed in all countries, both developed and developing countries, because of its negative impact on the environment. This study aims to develop an integrated analytical framework of causality between energy consumption, carbon emissions, financial development, trade openness, and economic growth in Indonesia, 1990-2021. This study provides research benefits in the form of a set of empirical evidence to assist in developing a series of key strategies that can improve environmental quality through sustainable development. With granger causality analysis and vector autoregression model, this study provides results that high economic growth and energy consumption can cause environmental degradation through increased carbon gas emissions.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":"122 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141666339","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}
Pub Date : 2024-07-06DOI: 10.9734/ijecc/2024/v14i74275
Sonali Kumari, Vikram Singh, Shakti Suryavanshi
The Rapti River basin in India is a region increasingly vulnerable to extreme precipitation events, which pose significant challenges to water resource management and flood mitigation. This study investigates the extreme precipitation patterns in the Rapti River Basin, India, by analyzing historical and projected data using advanced climate models and indices. Utilizing the Expert Team on Climate Change Detection and Indices (ETCCDI) framework, we focus on Consecutive Dry Days (CDD). The study evaluates the trends under different global warming scenarios of 1.5˚C, 2˚C, and 3˚C, employing ACCESS-CM2 Model. The findings reveal significant variations in the trends and magnitudes of CDD across the different warming levels. At 1.5˚C, CDD shows a decreasing trend. At 2˚C, models project a continued decrease in CDD. At 3˚C, mixed trends are observed with notable increases in CDD, highlighting the potential for prolonged wet periods and increased flood risks. The study underscores the impact of climate change on the hydrological behavior of the Rapti River Basin, emphasizing the need for adaptive water resource management strategies. It provides valuable insights into the future precipitation trends in the Rapti River Basin, guiding the development of strategies to enhance resilience against climate-induced hydrological changes.
{"title":"Future Prediction of Consecutive Dry Days (CDD) in Rapti River Basin Using Model ACCESS-CM2 Climate Projection","authors":"Sonali Kumari, Vikram Singh, Shakti Suryavanshi","doi":"10.9734/ijecc/2024/v14i74275","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74275","url":null,"abstract":"The Rapti River basin in India is a region increasingly vulnerable to extreme precipitation events, which pose significant challenges to water resource management and flood mitigation. This study investigates the extreme precipitation patterns in the Rapti River Basin, India, by analyzing historical and projected data using advanced climate models and indices. Utilizing the Expert Team on Climate Change Detection and Indices (ETCCDI) framework, we focus on Consecutive Dry Days (CDD). The study evaluates the trends under different global warming scenarios of 1.5˚C, 2˚C, and 3˚C, employing ACCESS-CM2 Model. The findings reveal significant variations in the trends and magnitudes of CDD across the different warming levels. At 1.5˚C, CDD shows a decreasing trend. At 2˚C, models project a continued decrease in CDD. At 3˚C, mixed trends are observed with notable increases in CDD, highlighting the potential for prolonged wet periods and increased flood risks. The study underscores the impact of climate change on the hydrological behavior of the Rapti River Basin, emphasizing the need for adaptive water resource management strategies. It provides valuable insights into the future precipitation trends in the Rapti River Basin, guiding the development of strategies to enhance resilience against climate-induced hydrological changes.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":" 70","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141672984","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}
Pub Date : 2024-07-06DOI: 10.9734/ijecc/2024/v14i74273
Santosh, J. Jaiswal
Wheat crop is facing various abiotic stresses due to changing environmental conditions as a result of global warming and heat stress is one of them which affects wheat crop during different growth stages and ultimately reduces grain yield very significantly. The present investigation was carried out with thirty two diverse genotypes of bread wheat in completely randomized block design with three replications at Norman E. Borlaug Crop Research Centre, G.B. Pant University of agriculture & Technology Pantnagar for the screening of wheat genotypes for terminal heat tolerance under three environments viz., timely sown (E1), late sown (E2) and very late sown (E3) conditions and to estimate the effect of high temperature on grain yield. Based on prevailing temperature, timely sown condition was considered as heat stress free environment while late sown and very late sown conditions were considered as heat stress environments. Genotypic performance varied substantially over the non-stress and heat stress environments. The observations were recorded on sixteen agronomic traits and three physiological traits. The statistical analysis forgenetic divergence study was done using Mahalanobis D2 statistics and clustering of genotypes was done using Tocher method. Terminal heat tolerance was measured by calculating heat susceptibility index (HSI) for the stress environments. On the basis of genetic diversity analysis, the maximum percent contribution towards genetic divergence was contributed by plant height while the lowest contribution was from harvest index. The 32 genotypes were grouped into six clusters. Cluster-II had maximum number of genotypes (11) while cluster-VI had only single genotype. Cluster-V exhibited the highest intra-cluster while the lowest intra-cluster distance was exhibited by cluster-VI. The highest inter-cluster distance was observed between cluster-III and cluster-VI whereas the lowest inter-cluster distance was observed between cluster-IV and cluster-I. Cluster-VI exhibited highest cluster means for yield contributing traits like grain weigh per spike, grain yield per plant, harvest index while cluster-V exhibited the highest cluster means for physiological traits like relative water content and canopy temperature depression. On the basis of heat susceptibility index, most of the genotypes were found tolerant and moderately tolerant for heat stress conditions. The genotypes bearing the desired values from different clusters can be exploited in future breeding programme for the improving wheat genotypes for heat stress conditions. These genotypes can be used as donor parents in heat tolerance breeding programme.
由于全球变暖导致环境条件不断变化,小麦作物正面临着各种非生物胁迫,热胁迫就是其中之一,它会在小麦作物的不同生长阶段对其产生影响,并最终显著降低谷物产量。本研究以 Norman E. Borlaug 作物研究中心(G.B. Pant University of Agriculture & Technology Pantnagar)的 32 个不同的面包小麦基因型为研究对象,采用完全随机区组设计,三次重复的方法,筛选小麦基因型在三种环境(即适时播种(E1)、晚播种(E2)和极晚播种(E3))条件下的末期耐热性,并估计高温对谷物产量的影响。根据当时的温度,适时播种条件被视为无热胁迫环境,而晚播和极晚播条件被视为热胁迫环境。在无热胁迫和热胁迫环境下,基因型表现差异很大。观察记录了 16 个农艺性状和 3 个生理性状。利用 Mahalanobis D2 统计法对遗传差异研究进行了统计分析,并利用 Tocher 方法对基因型进行了聚类。通过计算胁迫环境下的热敏性指数(HSI)来衡量终端耐热性。根据遗传多样性分析,株高对遗传差异的贡献最大,而收获指数的贡献最小。32 个基因型被分为 6 个群组。群组-II 的基因型数量最多(11 个),而群组-VI 只有一个基因型。簇-V 的簇内距离最大,而簇-VI 的簇内距离最小。群-III 和群-VI 之间的群间距离最大,而群-IV 和群-I 之间的群间距离最小。群-VI 在单穗粒重、单株产量、收获指数等产量贡献性状方面的群均值最高,而群-V 在相对含水量和冠层温度抑制等生理性状方面的群均值最高。根据热敏性指数,大多数基因型对热胁迫条件具有耐受性和中等耐受性。在未来的育种计划中,可以利用不同群组中具有所需数值的基因型,改良小麦基因型以适应热胁迫条件。这些基因型可用作耐热育种计划的供体亲本。
{"title":"Assessment of Diversity for Terminal Heat Tolerance under Different Sowing Conditions in Bread Wheat (Triticum aestivum L. em.Thell.)","authors":"Santosh, J. Jaiswal","doi":"10.9734/ijecc/2024/v14i74273","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74273","url":null,"abstract":"Wheat crop is facing various abiotic stresses due to changing environmental conditions as a result of global warming and heat stress is one of them which affects wheat crop during different growth stages and ultimately reduces grain yield very significantly. The present investigation was carried out with thirty two diverse genotypes of bread wheat in completely randomized block design with three replications at Norman E. Borlaug Crop Research Centre, G.B. Pant University of agriculture & Technology Pantnagar for the screening of wheat genotypes for terminal heat tolerance under three environments viz., timely sown (E1), late sown (E2) and very late sown (E3) conditions and to estimate the effect of high temperature on grain yield. Based on prevailing temperature, timely sown condition was considered as heat stress free environment while late sown and very late sown conditions were considered as heat stress environments. Genotypic performance varied substantially over the non-stress and heat stress environments. The observations were recorded on sixteen agronomic traits and three physiological traits. The statistical analysis forgenetic divergence study was done using Mahalanobis D2 statistics and clustering of genotypes was done using Tocher method. Terminal heat tolerance was measured by calculating heat susceptibility index (HSI) for the stress environments. On the basis of genetic diversity analysis, the maximum percent contribution towards genetic divergence was contributed by plant height while the lowest contribution was from harvest index. The 32 genotypes were grouped into six clusters. Cluster-II had maximum number of genotypes (11) while cluster-VI had only single genotype. Cluster-V exhibited the highest intra-cluster while the lowest intra-cluster distance was exhibited by cluster-VI. The highest inter-cluster distance was observed between cluster-III and cluster-VI whereas the lowest inter-cluster distance was observed between cluster-IV and cluster-I. Cluster-VI exhibited highest cluster means for yield contributing traits like grain weigh per spike, grain yield per plant, harvest index while cluster-V exhibited the highest cluster means for physiological traits like relative water content and canopy temperature depression. On the basis of heat susceptibility index, most of the genotypes were found tolerant and moderately tolerant for heat stress conditions. The genotypes bearing the desired values from different clusters can be exploited in future breeding programme for the improving wheat genotypes for heat stress conditions. These genotypes can be used as donor parents in heat tolerance breeding programme.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":" 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141672834","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}
Pub Date : 2024-07-06DOI: 10.9734/ijecc/2024/v14i74274
S. Verma, Doddachowdappa Sagar, Hemant Kumar, Sujatha G S
Sex ratios in insect populations are critical in shaping their reproductive dynamics, genetic diversity, and ecological interactions. While genetic factors often determine sex, abiotic factors have emerged as important influencers of sex ratios in insects. The influence of abiotic factors on sex ratios in insects is of scientific interest and holds practical implications for insect conservation and management. As environmental conditions change due to global warming, understanding how sex ratios respond to these changes can aid in predicting population dynamics and designing effective conservation strategies for biocontrol agents as well as the management of insect pests. Abiotic stressors, including fluctuations in temperature, humidity variations, altitude & latitude, nutrition and chemical exposure have been shown to disrupt the precise balance of hormonal and genetic cues governing sex determination in insects. Insects being ectothermic, body temperature depends on the surrounding environmental conditions and are highly vulnerable to the change in climate. This review explores the intricate relationship between abiotic stress and sex determination mechanisms in insects, highlighting recent advances in our understanding of how stress-induced alterations especially environment in hormone signaling, gene expression, and epigenetic modifications can lead to skewed sex ratios and developmental anomalies. Regardless of the advances in this area, notable research gaps are still present. Future studies on the multiple abiotic factors and their synergistic effects will give a more detailed study of insect populations, and their ecosystems. This comprehensive review delves into the multifaceted interactions between abiotic factors and sex differentiation in insects. In conclusion, the abiotic factors especially temperature are indeed game changers in the insect sex ratio dynamics.
{"title":"Abiotic Factors as Game Changer in Sex Ratio Distortion of Insects","authors":"S. Verma, Doddachowdappa Sagar, Hemant Kumar, Sujatha G S","doi":"10.9734/ijecc/2024/v14i74274","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74274","url":null,"abstract":"Sex ratios in insect populations are critical in shaping their reproductive dynamics, genetic diversity, and ecological interactions. While genetic factors often determine sex, abiotic factors have emerged as important influencers of sex ratios in insects. The influence of abiotic factors on sex ratios in insects is of scientific interest and holds practical implications for insect conservation and management. As environmental conditions change due to global warming, understanding how sex ratios respond to these changes can aid in predicting population dynamics and designing effective conservation strategies for biocontrol agents as well as the management of insect pests. Abiotic stressors, including fluctuations in temperature, humidity variations, altitude & latitude, nutrition and chemical exposure have been shown to disrupt the precise balance of hormonal and genetic cues governing sex determination in insects. Insects being ectothermic, body temperature depends on the surrounding environmental conditions and are highly vulnerable to the change in climate. This review explores the intricate relationship between abiotic stress and sex determination mechanisms in insects, highlighting recent advances in our understanding of how stress-induced alterations especially environment in hormone signaling, gene expression, and epigenetic modifications can lead to skewed sex ratios and developmental anomalies. Regardless of the advances in this area, notable research gaps are still present. Future studies on the multiple abiotic factors and their synergistic effects will give a more detailed study of insect populations, and their ecosystems. This comprehensive review delves into the multifaceted interactions between abiotic factors and sex differentiation in insects. In conclusion, the abiotic factors especially temperature are indeed game changers in the insect sex ratio dynamics.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":" 107","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141672710","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}
Pub Date : 2024-07-06DOI: 10.9734/ijecc/2024/v14i74276
Balwant Singh, Anjani Kurrey, A.K. Singh, R. K. Yadav, Smita Gupta, Pirya Singh, A. Mishra
In this research climate variability and impact of climate change on major crop i.e. rice and wheat in the Eastern plain zone were investigated. For this study temperature (maximum & Minimum) and rainfall were collected from different sources such as India meteorological Department, Lucknow and Banaras Hindu University, Department of agronomy, Institute of agriculture science Varanasi, Yield data of crop was collected from Directorate of Economics and statistics, Ministry of agriculture. Historical data (2000-2020) on different meteorological parameters of Eastern Plain Zone of Uttar Pradesh (Azamgarh, Ayodhya, Ghazipur) were analyzed. Seasonal as well as annual variability for maximum & minimum temperature, rainfall of Eastern Plain Zone of Uttar Pradesh for the period of 2000-2020 were computed. From the analysis it was found that, the average temperature of Eastern Plain Zone of Uttar Pradesh has been 31.6℃. The highest average temperature was 32.5℃ in the year 2009 while the lowest temperature was 30.4℃ in the year 2014. Over the year from 2000 to 2020 there has been sharp/significant increase in the temperature, which is approximately between 31.6℃ to 32.5℃. Even in the year 2009 there was an increase of approximately 0.9℃ in average temperature. Understanding trend in rainfall is one of the crucial parameters for various sectors. Furthermore average rainfall was decreasing by 0.53mm every year during 2000-2020.
{"title":"Climatic Variability and Impact of Climate Change on Rice and Wheat in the Eastern Plain Zone of Uttar Pradesh, India","authors":"Balwant Singh, Anjani Kurrey, A.K. Singh, R. K. Yadav, Smita Gupta, Pirya Singh, A. Mishra","doi":"10.9734/ijecc/2024/v14i74276","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74276","url":null,"abstract":"In this research climate variability and impact of climate change on major crop i.e. rice and wheat in the Eastern plain zone were investigated. For this study temperature (maximum & Minimum) and rainfall were collected from different sources such as India meteorological Department, Lucknow and Banaras Hindu University, Department of agronomy, Institute of agriculture science Varanasi, Yield data of crop was collected from Directorate of Economics and statistics, Ministry of agriculture. Historical data (2000-2020) on different meteorological parameters of Eastern Plain Zone of Uttar Pradesh (Azamgarh, Ayodhya, Ghazipur) were analyzed. Seasonal as well as annual variability for maximum & minimum temperature, rainfall of Eastern Plain Zone of Uttar Pradesh for the period of 2000-2020 were computed. From the analysis it was found that, the average temperature of Eastern Plain Zone of Uttar Pradesh has been 31.6℃. The highest average temperature was 32.5℃ in the year 2009 while the lowest temperature was 30.4℃ in the year 2014. Over the year from 2000 to 2020 there has been sharp/significant increase in the temperature, which is approximately between 31.6℃ to 32.5℃. \u0000Even in the year 2009 there was an increase of approximately 0.9℃ in average temperature. Understanding trend in rainfall is one of the crucial parameters for various sectors. Furthermore average rainfall was decreasing by 0.53mm every year during 2000-2020.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":" 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141672451","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}
Pub Date : 2024-07-05DOI: 10.9734/ijecc/2024/v14i74272
Bushra, S.K.Guru
Green gram (Vigna radiata L.) is one of the most important and extensively cultivated crops in India. The average productivity of this crop is very low and one of the main reasons is competition from weeds. Yield reduction in green gram due to weed infestation ranges between 30-85%. Thus, effective weed management is an important key factor for enhancing the productivity of green gram. In the present study, a field experiment was conducted duringrainy season of 2022 at the G. B. Pant University of Agriculture and Technology, Pantnagar to evaluate the effect of eight different herbicides for weed management in green gram genotype Pant mung-6.The experiment was laid out in a randomized block design with three replications. The herbicide treatments consisted of pendimethalin (30% EC) 750 g.a.i/ha, fenoxprop-p-ethyl (9.3%EC) 67.5g.a.i/ha, fluazifop-p-butyl (13.4%EC) 125 g.a.i/ha, imazethapyr (10%SL) 75g.a.i/ha, propaquizafop (10%EC) 100g.a.i/ha, quizalofop-ethyl (5%EC) 50g.a.i/ha, fluazifop-p-butyl (11.1%) 150 g.a.i/ha +Fomesafen (11.1%EC) 250 g.a.i/ha, and sodium acifluorfen (16.5)%+ clodinafoppropargyl (8% EC) 80+165 g.a.i./ha. One weedy check and twice hand weeding (at 20 and 45 DAS) were also included in treatment. Major weed species found infesting the crop were C.rotundous, Trianthema portulacastrum, Elusine indica, Digitaria sanguinalis, Digeria arvensis, Celosia argentea, Mollugo pentaphylla and P. niruri. All the herbicide treatments recorded significantly lower weed density than the weedy check. Among the herbicides, pendimethalin (0.75 kg/ha) as pre-emergence, post-emergence application of Imazethapyr (75g/ha) and ready mix product of sodium acifluorfen + clodinafop-propargyl (80+165g/ha) provided excellent weed control with a WCE of more than 85%. Grain yield of mung bean was also highest in these treatments.
{"title":"Efficacy of Some Pre- and Post-Emergence Herbicides for Weed Management and their Effects on Yield and Yield Attributes in Rainy Season Green Gram (Vigna radiata L.) Crop","authors":"Bushra, S.K.Guru","doi":"10.9734/ijecc/2024/v14i74272","DOIUrl":"https://doi.org/10.9734/ijecc/2024/v14i74272","url":null,"abstract":"Green gram (Vigna radiata L.) is one of the most important and extensively cultivated crops in India. The average productivity of this crop is very low and one of the main reasons is competition from weeds. Yield reduction in green gram due to weed infestation ranges between 30-85%. Thus, effective weed management is an important key factor for enhancing the productivity of green gram. In the present study, a field experiment was conducted duringrainy season of 2022 at the G. B. Pant University of Agriculture and Technology, Pantnagar to evaluate the effect of eight different herbicides for weed management in green gram genotype Pant mung-6.The experiment was laid out in a randomized block design with three replications. The herbicide treatments consisted of pendimethalin (30% EC) 750 g.a.i/ha, fenoxprop-p-ethyl (9.3%EC) 67.5g.a.i/ha, fluazifop-p-butyl (13.4%EC) 125 g.a.i/ha, imazethapyr (10%SL) 75g.a.i/ha, propaquizafop (10%EC) 100g.a.i/ha, quizalofop-ethyl (5%EC) 50g.a.i/ha, fluazifop-p-butyl (11.1%) 150 g.a.i/ha +Fomesafen (11.1%EC) 250 g.a.i/ha, and sodium acifluorfen (16.5)%+ clodinafoppropargyl (8% EC) 80+165 g.a.i./ha. One weedy check and twice hand weeding (at 20 and 45 DAS) were also included in treatment. Major weed species found infesting the crop were C.rotundous, Trianthema portulacastrum, Elusine indica, Digitaria sanguinalis, Digeria arvensis, Celosia argentea, Mollugo pentaphylla and P. niruri. All the herbicide treatments recorded significantly lower weed density than the weedy check. Among the herbicides, pendimethalin (0.75 kg/ha) as pre-emergence, post-emergence application of Imazethapyr (75g/ha) and ready mix product of sodium acifluorfen + clodinafop-propargyl (80+165g/ha) provided excellent weed control with a WCE of more than 85%. Grain yield of mung bean was also highest in these treatments.","PeriodicalId":506431,"journal":{"name":"International Journal of Environment and Climate Change","volume":" 43","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141674921","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}