Article
Engineering, Civil
Shahin Solgi, Seyed Hamid Ahmadi, Ali Reza Sepaskhah, Mohsen Edalat
Summary: Water-saving through deficit irrigation management is an effective approach to improve water productivity in sustainable agriculture. Crop modeling can be used to evaluate the impact of different irrigation scenarios on yield and water productivity. This study assessed the effects of surface and sprinkler irrigation under different climatic scenarios and irrigation strategies. The results showed that reducing irrigation water by 30% improved water productivity in different growing seasons. Additionally, sprinkler irrigation can increase water productivity and sustain crop production in normal and wet years, but may have negative effects in other conditions. It is important to synchronize irrigation strategies with rainfall characteristics in areas with erratic rainfalls to enhance water productivity and maintain crop production.
JOURNAL OF HYDROLOGY
(2022)
Article
Agronomy
Seyed Hamid Ahmadi, Mohammad Reza Reis Ghorra, Ali Reza Sepaskhah
Summary: The AquaCrop model was used to simulate the growth of potatoes in a hot semi-arid environment, and different irrigation managements were studied. The results showed that the model performed well in simulating potato growth and could be used as a reliable tool for irrigation water management and decision-making in potato production.
FIELD CROPS RESEARCH
(2022)
Article
Environmental Sciences
Amir Mahyar Khoshsirat, Mohsen Najarchi, Reza Jafarinia, Shahroo Mokhtari
Summary: This study utilized the AquaCrop model to simulate and calibrate the growth and yield of winter wheat and barley under arid and semi-arid climatic conditions, with the analysis of statistical indicators for evaluation.
Article
Green & Sustainable Science & Technology
Marilyn S. Painagan, Victor B. Ella
Summary: Deficit irrigation offers potential for sustainable water resources management by maximizing yield and water productivity through reducing irrigation. This study demonstrates that a 60% deficit irrigation level can achieve optimal water productivity without the need for excessive water usage. The DSSAT CERES-Maize and AquaCrop models prove to be effective decision support tools for corn production systems in the Philippines, particularly when employing deficit irrigation.
Article
Engineering, Civil
Rouhollah Davarpanah, Seyed Hamid Ahmadi
Summary: This study used the AquaCrop model to simulate different deficit irrigation scenarios for winter wheat in a warm and semi-arid environment in Iran, finding that rotational irrigation is more adaptable and productive compared to on-demand irrigation in managing water stress. The research highlighted the importance of optimal irrigation timing and planning in achieving high grain yield and water productivity under different climate conditions.
JOURNAL OF HYDROLOGY
(2021)
Article
Agronomy
Angela Morales-Santos, Margarita Garcia-Vila, Reinhard Nolz
Summary: Due to climate change, subhumid regions will face a significant increase in irrigation demand, posing challenges for agriculture with inefficient irrigation management. This study aims to evaluate irrigation systems and strategies for soybeans in Austria using the parameterized FAO AquaCrop model. Three irrigation methods were considered, and the results showed that a moderate deficit irrigation strategy with appropriate thresholds improved yields and irrigation water productivity. Drip systems outperformed sprinkler systems in terms of efficiency and water productivity.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Water Resources
Seyed Hamid Ahmadi, Mohammad Hadi Jorenush, Saeed Boroomand Nasab
Summary: The parameterized AquaCrop model was used to simulate the four major elements affecting crop growth process of three irrigated winter wheat cultivars in different climatic conditions of southern Iran. The model showed high skill in simulating soil water content, canopy cover, biomass, and grain yield. AquaCrop was able to simulate grain yield and irrigation water productivity of different winter wheat cultivars under various conditions, making it a reliable decision-making tool for field managers and stakeholders.
JOURNAL OF WATER AND CLIMATE CHANGE
(2022)
Article
Environmental Sciences
Khaoula Ibba, Jalal Kassout, Vladimiro Boselli, Salah Er-Raki, Sara Oulbi, Loubna El Mansouri, Abdelaziz Bouizgaren, Lhassane Sikaoui, Rachid Hadria
Summary: This study evaluates the impact of two deficit irrigation strategies on the agronomic and productive parameters of the Menara olive cultivar. The results show that moderate and controlled water stress does not significantly affect the yield of the Menara olive cultivar. By reducing plant water requirement during sensitive and normal periods, it is possible to save irrigation water and increase water productivity with a slight decrease in fruit yield. However, sustained deficit irrigation leads to slower shoot growth and reduced fruit volume.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Abdusslam A. Houma, Md Rowshon Kamal, Md Abdul Mojid, Mohamed Azwan Mohamed Zawawi, Balqis Mohamed Rehan
Summary: The study evaluated water productivity of irrigated rice in the Northwest Selangor Rice Irrigation Scheme due to changing climate, using experimental data and the AquaCrop Model. The model predicted a 10% decrease in crop evapotranspiration in the future, and an increase in water productivity under different emission scenarios. Various agronomic management options linked to water productivity will become important in coping with climate change impacts.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Rajkumar Jat, V. P. Singh, Salwan Ali Abed, Nadhir Al-Ansari, P. K. Singh, Dinesh Kumar Vishwakarma, Ashok Choudhary, Mohammad Khalid Al-Sadoon, Raj C. C. Popat, Suresh Kumar Jat
Summary: In the subtropical humid Tarai regions of India, different irrigation strategies and mulching methods can significantly impact the growth and yield of guava. Full irrigation and silver-black mulch are beneficial for plant growth, while moderate deficit irrigation along with silver-black mulch combination can increase the number of fruits per plant, average fruit weight, fruit yield, and ascorbic acid content.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Plant Sciences
Chowdasandra Byregowda Harisha, Vijaykumar B. Narayanpur, Jagadish Rane, Vasant M. Ganiger, Sugooru M. Prasanna, Yeragenahalli Chandrashekaharappa Vishwanath, Sanjeevraddi G. Reddi, Hanamant M. Halli, Karnar Manjanna Boraiah, Patil Siddanagouda Basavaraj, Eman A. Mahmoud, Ryan Casini, Hosam O. Elansary
Summary: Appropriate water management practices are essential for chia cultivation in semiarid regions. Field trials were conducted to investigate the impact of deficit irrigation and bioregulators on seed yield, water productivity, and oil quality of chia. The results showed that bioregulators could mitigate the adverse effects of water deficit stress, especially under mild water stress conditions. Furthermore, foliar application of potassium nitrate, thiourea, and salicylic acid could improve oil quality and save water.
Article
Agronomy
Ahmed A. El-Shafei, Mohamed A. Mattar
Summary: Water is crucial for global food security and agricultural productivity. Mathematical models can accurately predict the impact of irrigation management on crop yields. The experiments showed that surface and drip irrigation systems affected wheat yield and water productivity, with drip irrigation being more efficient. The CROPWAT and SALTMED models performed well in simulating irrigation scheduling and estimating wheat yield.
Article
Agronomy
Matthew Champness, Carlos Ballester, John Hornbuckle
Summary: Declining water availability is leading rice growers to adopt water-saving irrigation practices like aerobic rice in order to maintain profitability per megalitre of water input. This study aimed to investigate the effect of increasing soil moisture deficit during the rice vegetative period in a temperate Australian environment. The research found that extending soil moisture deficit beyond 15 kPa significantly delayed panicle initiation and reduced yield, but sound water productivity can still be achieved with aerobic rice cultivation in temperate climates.
Article
Agronomy
T. D. Kelly, T. Foster, David M. Schultz
Summary: The study finds that fixed irrigation strategies can be near-optimal and the prediction of future weather does not significantly improve agricultural profits. Therefore, the implementation of fixed irrigation strategies should be prioritized.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Chao Zhang, Ziang Xie, Qiaojuan Wang, Min Tang, Shaoyuan Feng, Huanjie Cai
Summary: This study investigates the impact of irrigation amount, time, and frequency on winter wheat yield and water productivity using long-term meteorological data and the AquaCrop model. Optimal irrigation schedules are determined to improve grain yield and water productivity.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Anu Suprabha Raj, Kaliramesh Siliveru, Reuben McLean, Pagadala V. Vara Prasad, Romulo P. Lollato
Summary: Genotype, environment, and management determine the yield, biochemical composition, and quality of wheat. This study investigates the possibility of improving yield and milling/baking attributes through intensive management. The results show that intensive management can increase yield and improve milling and baking characteristics of bread wheat genotypes.
Article
Agriculture, Multidisciplinary
Balaji Aravindhan Pandian, Aruna Varanasi, Amaranatha Reddy Vennapusa, Curtis Thompson, Tesfaye Tesso, P. V. Vara Prasad, Mithila Jugulam
Summary: Mesotrione is effective in controlling a wide spectrum of weeds in corn but not registered for postemergence use in sorghum due to crop injury. Two mesotrione-resistant sorghum genotypes (G-1 and G-10) and one susceptible genotype (S-1) were identified from a sorghum germplasm collection. G-1 and G-10 showed high resistance to mesotrione under greenhouse and field conditions. Enhanced metabolism of mesotrione in G-1 and G-10 was observed, indicating the involvement of cytochrome P450 (CYP) in the metabolism. Genetic analyses revealed that mesotrione resistance in sorghum is controlled by a single dominant gene along with several minor-effect genes through crossing G-1 and G-10 with S-1.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Purbali Mukherjee, Pavithra Suriyakumar, S. Vanchinathan, Veda Krishnan, Milan Kumar Lal, Prakash Kumar Jha, Viswanathan Chinnusamy, Anjali Anand, P. V. Vara Prasad
Summary: High night temperature affects crop productivity by damaging the reproductive cells (pollen and pistil). However, the understanding of the antioxidant system and hormonal control of pistil's tolerance to high night temperature is limited. This study investigates the antioxidant mechanism and the involvement of abscisic acid (ABA) and gibberellic acid (GA(3)) in protecting wheat pistils from high night temperature stress.
Article
Agronomy
Yu Cheng, Min Luo, Tonggang Zhang, Sihui Yan, Chun Wang, Hao Feng, Tibin Zhang, Isaya Kisekka
Summary: Organic substitution is an effective approach to address soil degradation caused by excessive chemical fertilizer use. This study evaluated the effects of different organic substitution proportions on saline-sodic soil properties and sunflower growth, and recommended a 50% organic substitution ratio for optimal results.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Ramasamy Perumal, Tesfaye T. Tesso, S. V. Krishna Jagadish, Vipan Kumar, Robert M. Aiken, Scott R. Bean, Dmitriy Smolensky, K. H. Shantha Peiris, P. V. Vara Prasad, Christopher R. Little
Summary: This article introduces four sorghum seed parents and ten paternal lines, highlighting their characteristics and adaptability. It recommends the development of hybrid varieties for planting in cold and drought-prone regions.
JOURNAL OF PLANT REGISTRATIONS
(2023)
Article
Plant Sciences
Jianming Fu, Robert L. Bowden, S. V. Krishna Jagadish, P. V. Vara Prasad
Summary: During the grain filling stage, wheat plants in many regions worldwide suffer from terminal high temperature stress, resulting in a decrease in single seed weight and grain yield. In this study, the terminal heat stress tolerance of 304 elite winter wheat lines from different breeding programs was evaluated. Significant genetic variation for chlorophyll retention and seed weight under heat stress conditions was observed. Two possible mechanisms of heat tolerance during grain filling, namely through current photosynthesis and relocation of reserves, were proposed. The tolerant genotypes identified in this study could be valuable for breeding programs after further validation.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Aliou Faye, Tobi Moriaque Akplo, Zachary. P. P. Stewart, Doohong Min, Augustine. K. K. Obour, Yared Assefa, P. V. Vara Prasad
Summary: The purpose of the study was to evaluate grain and biomass production of newly released dual-purpose millet varieties under different fertilizer rates and planting densities across the millet-cropping regions of Senegal with different rainfall regimes. Results showed that variety yield response differed with environments. Increasing sowing density increased grain and fodder yields, and the application of specific fertilizer combinations produced appreciable yields in all environments. This study provides crop-management options for improving millet productivity and system resilience in the semi-arid regions of west Africa.
Article
Agronomy
Venkatesh Paramesh, Parveen Kumar, Tejasvi Bhagat, Arun Jyoti Nath, Kallakeri Kannappa Manohara, Bappa Das, Brijesh Fal Desai, Prakash Kumar Jha, P. V. Vara Prasad
Summary: Identifying sustainable crop production systems that optimize nutrient management and improve soil quality is crucial for meeting the increasing demands of a growing population. In this study, different nutrient management practices were evaluated under the rice-rice cropping system in Goa, India. The results showed that integrated nutrient management, combining organic and inorganic sources, improved soil carbon stock, microbial biomass carbon, and crop yield compared to chemical fertilizer alone. The study highlights the importance of integrated nutrient management systems for sustainable agriculture.
Article
Agronomy
Sophoanrith Ro, Siranet Roeurn, Chav Sroy, P. V. Vara Prasad
Summary: This research aimed to evaluate the growth and yield of maize and mungbean crops and land-equivalent ratio of maize-mungbean intercropping system using different seed rates of mungbean. The results showed that there was no significant difference in agronomic traits and yield of maize under either maize-mungbean intercropping or maize monocropping irrespective of different mungbean seed rates. The presence of mungbean in the intercropping suppressed weed growth significantly and the trend of weed biomass decreased with increasing mungbean seed rates.
Article
Agronomy
Floyid Nicolas, Tamir Kamai, Alon Ben -Gal, Jose Ochoa-Brito, Andre Daccache, Felix Ogunmokun, Isaya Kisekka
Summary: This study developed a comprehensive biophysical model to assess the impact of salinity in the root zone on crop yields and profitability in the Central Valley. The model integrated soil variables, climate conditions, irrigation inputs, and economic data and showed strong predictive capabilities for crop yields and profitability. The model also revealed variations in yield and profitability based on soil type and groundwater salinity, providing valuable insights for policymakers and growers in arid regions.
AGRICULTURAL WATER MANAGEMENT
(2023)
Review
Agronomy
Tobi Moriaque Akplo, Aliou Faye, Augustine Obour, Zachary P. Stewart, Doohong Min, P. V. Vara Prasad
Summary: Addressing food and nutrition insecurity in Sub-Saharan Africa requires innovative agriculture production systems. Recent developments in dual-purpose varieties of cowpea, pearl millet, and sorghum have aimed to meet both human nutrition and livestock feed needs. These varieties have shown higher grain and fodder yields compared to traditional varieties, improving fertilizer use efficiency, profitability, and environmental sustainability.
FOOD AND ENERGY SECURITY
(2023)
Article
Agronomy
Amit Kumar Singh, Jai Bahadur Singh, Ramesh Singh, Sita Ram Kantwa, Prakash Kumar Jha, Safik Ahamad, Anand Singh, Avijit Ghosh, Mahendra Prasad, Shikha Singh, Surendra Singh, P. V. Vara Prasad
Summary: An integrated forage-legume cropping system has the potential to address land degradability. This study assessed the performance of mixed cropping systems versus monocultures and found that the legume intensification significantly improved soil health and productivity in semi-arid regions.
Article
Biochemistry & Molecular Biology
Tunisha Verma, Savita Bhardwaj, Ali Raza, Ivica Djalovic, P. V. Vara Prasad, Dhriti Kapoor
Summary: This study aimed to alleviate the negative effects of salt stress on Indian mustard. The application of triacontanol (TRIA) and hydrogen sulfide (H2S) was found to improve growth attributes and the antioxidant defense system in B. juncea under salt stress. Additionally, salt stress resulted in decreased levels of proteins, metabolites, and antioxidant enzymes, but these levels were significantly increased with the application of TRIA and H2S.
PLANT SIGNALING & BEHAVIOR
(2023)
Article
Biochemistry & Molecular Biology
Abida Kausar, Noreen Zahra, Hina Zahra, Muhammad Bilal Hafeez, Sara Zafer, Abida Shahzadi, Ali Raza, Ivica Djalovic, P. V. Vara Prasad
Summary: This study examines the protective effect of foliar application of thiamine on two varieties of pea plants under drought stress. Results show that thiamine can help plants withstand drought stress and improve their growth and antioxidant capacity. One of the pea varieties performs better than the other.
PLANT SIGNALING & BEHAVIOR
(2023)
Article
Environmental Sciences
Jean-Claude Bizimana, Belainew B. Yalew, Tewodros T. Assefa, Sisay A. Belay, Yonas M. Degu, Tafadzwanashe Mabhaudhi, Manuel R. Reyes, P. V. Vara Prasad, Seifu A. Tilahun
Summary: This study evaluates the economic and nutritional feasibility of solar-powered irrigation using the MajiPump in sub-humid Ethiopian highlands. The results show that farmers who adopt this technology can increase their income and improve their nutrition. However, financial support is needed for initial investment. The traditional pulley system, although providing the same amount of irrigation water, is less feasible due to high labor costs.
