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Effects Of Traditional And Microbially-Focused Restoration Techniques On Soil Communities In Tallgrass Prairies, Zachary J. Whitacre Jun 2021

Effects Of Traditional And Microbially-Focused Restoration Techniques On Soil Communities In Tallgrass Prairies, Zachary J. Whitacre

Masters Theses

Tallgrass prairies have virtually disappeared in many parts of their former range due to the conversion of this ecosystem to farmland. In more recent years there have been efforts to restore these prairies on reclaimed agricultural land. However, these restored prairies do not resemble their remnant counterparts in many ways, such as in soil microbial community composition and metrics related to carbon storage. In Chapter 1, I show that bacterial communities in a restored prairie and an adjacent remnant prairie in southwest Michigan differ in their immediate and longer-term responses to prescribed fire, a commonly used prairie restoration and maintenance …


A Research Road Map For Responsible Use Of Agricultural Nitrogen, Michael Udvardi, Frederick E. Below, Michael J. Castellano, Alison J. Eagle, Ken E. Giller, Jagdish Kumar Ladha, Xuejun Liu, Tai Mcclellan Maaz, Barbara Nova-Franco, Nandula Raghuram, G. Philip Robertson, Sonali Roy, Malay Saha, Susanne Schmidt, Mechthild Tegeder, Larry M. York, John W. Peters May 2021

A Research Road Map For Responsible Use Of Agricultural Nitrogen, Michael Udvardi, Frederick E. Below, Michael J. Castellano, Alison J. Eagle, Ken E. Giller, Jagdish Kumar Ladha, Xuejun Liu, Tai Mcclellan Maaz, Barbara Nova-Franco, Nandula Raghuram, G. Philip Robertson, Sonali Roy, Malay Saha, Susanne Schmidt, Mechthild Tegeder, Larry M. York, John W. Peters

Agricultural and Environmental Sciences Faculty Research

Nitrogen (N) is an essential but generally limiting nutrient for biological systems. Development of the Haber-Bosch industrial process for ammonia synthesis helped to relieve N limitation of agricultural production, fueling the Green Revolution and reducing hunger. However, the massive use of industrial N fertilizer has doubled the N moving through the global N cycle with dramatic environmental consequences that threaten planetary health. Thus, there is an urgent need to reduce losses of reactive N from agriculture, while ensuring sufficient N inputs for food security. Here we review current knowledge related to N use efficiency (NUE) in agriculture and identify research …


Improved Taste And Texture In Novel Popcorn Varieties Compared To Conventional Lines, Leandra Parsons, Oscar Rodriguez, David R. Holding May 2021

Improved Taste And Texture In Novel Popcorn Varieties Compared To Conventional Lines, Leandra Parsons, Oscar Rodriguez, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Abstract Quality Protein Popcorn (QPP) varieties were bred out of a unique germplasm pool derived from Quality Protein dent Maize and conventional popcorn lines. To identify and compare distinctive characteristics within this population, a new sensory method was employed that coupled hedonic numeric rankings of common sensory traits appearance, aroma, texture, and taste with an “overall likability” score while requiring the selection of specific descriptors for taste and texture. Participants tasted six popcorn cultivars, rated each sample based on sensory factors, and offered specific descriptors for taste and texture. This sensory method identified two QPP hybrids with higher overall likability …


Larvicidal Potency Of Dioscorea Sansibarensis Leaf Extract Against Vector Mosquitoes: Anopheles Gambiae S.S. And Culex Quinquefasciatus, Anitha Philbert May 2021

Larvicidal Potency Of Dioscorea Sansibarensis Leaf Extract Against Vector Mosquitoes: Anopheles Gambiae S.S. And Culex Quinquefasciatus, Anitha Philbert

Tanzania Journal of Science

Mosquitoes are responsible for transmission of illnesses of public health importance including malaria, lymphatic filariasis, dengue, chikungunya, and many other diseases caused by viruses. Vector control using synthetic insecticides has been the cornerstone for management of vector-borne diseases. However, the chemical based interventions have not been sustainable due to emergency of resistance against insecticides among disease vectors. Plant based mosquitocidal products can be potential alternative tools in vector control. Therefore, the present study aimed at exploring the larvicidal properties of Dioscorea sansibarensis leaf extract against malaria and lymphatic filariasis vectors; Anopheles gambiae s.s. and Culex quinquefasciatus. The larvicidal activities of …


Application Of Linguistic/Non-Numeric Fuzzy Aggregation To The Ranking Of Processed Crops, David Koloseni May 2021

Application Of Linguistic/Non-Numeric Fuzzy Aggregation To The Ranking Of Processed Crops, David Koloseni

Tanzania Journal of Science

A non-numeric fuzzy aggregation approach is applied for the fusion of information obtained from farmers and experts for evaluation and selection of alternatives under multiple criteria. The technique has the ability to assign linguistic variable to fused information and find consensus of gathered opinions from a number of experts on crop processing for each processed crop. The technique is illustrated with a crop processing problem by adding value to the crop and increase income to entrepreneurs. The proposed technique has been successfully applied to the ranking of the processed crops based on the expert’s opinions, thus obtaining best preferences based …


Amending Traditional Substrate Rice Straw With Agroforestry Tree Foliage Increases Production Cycle And Nutritional Value Of Pleurotus Floridanus, Samora M Andrew, John R Mbwambo May 2021

Amending Traditional Substrate Rice Straw With Agroforestry Tree Foliage Increases Production Cycle And Nutritional Value Of Pleurotus Floridanus, Samora M Andrew, John R Mbwambo

Tanzania Journal of Science

The recent heightened attention on mushrooms has not considered shortening the production time and increasing nutritional value using substrates from agroforestry trees in addition to traditionally used agro-industrial residues. This study therefore, examined harvesting time, protein and essential minerals of Pleurotus floridanus grown on rice straw amended with Gliricidia sepium foliage in Morogoro, Tanzania. Mushrooms were cultivated in 30 x 40 cm 4 kg dry weight polythene bags in randomized complete block design (RCBD) experiment. Results showed that the addition of 5% G. sepium into rice straw reduced total time between spawning and first harvest of P. floridanus. Gliricidia sepium …


Effects Of Xanthan Gum On Rheological Properties Of Aloe Vera-Moringa Leaf Juice Blends, Victor V Matabura, Leonard Mp Rweyemamu May 2021

Effects Of Xanthan Gum On Rheological Properties Of Aloe Vera-Moringa Leaf Juice Blends, Victor V Matabura, Leonard Mp Rweyemamu

Tanzania Journal of Science

Understanding the impacts of hydrocolloid agents on the rheological properties of nutraceutical beverages like Aloe vera-moringa juice blend is very useful for functional properties and product stability. To this end, the effects of xanthan gum on rheological properties in Aloe vera-moringa leaf juice blends were investigated using a Brookfield rheometer. Aloe vera-moringa leaf juice blends were prepared and then incorporated with xanthan gum at different ratios (w/w) of 0.2%, 0.4%, 0.6%, 0.8%, and 1%. The results revealed that the viscosity of Aloe vera-moringa juice blend was strongly affected by the xanthan gum addition. The viscosity profiles depicted a decreasing trend …


Screening Of Aflatoxin-Producing Fungi In Maize And Groundnuts From Three Regions In Tanzania, Kusiluka Agape, Valence Mk Ndesendo, Sartaz Begum May 2021

Screening Of Aflatoxin-Producing Fungi In Maize And Groundnuts From Three Regions In Tanzania, Kusiluka Agape, Valence Mk Ndesendo, Sartaz Begum

Tanzania Journal of Science

This study screened aflatoxin-producing fungi in maize and groundnuts from Dodoma, Singida and Iringa regions in Tanzania, and assessed the level of peoples’ awareness on aflatoxins health effects. One hundred and twenty samples (20 each crop) were collected and inoculated on Sabouraud dextrose agar and one hundred and eleven samples were observed to have fungal growths that were identified to belong to four genera, namely Aspergillus, Rhizopus, Mucor and Dermatophyte with occurrence frequencies of 75, 2.5, 5 and 10%, respectively. Among the four screened genera of fungi, Aspergillus was observed to be the major aflatoxin-producing fungi. Five species of genus …


Bacterial Growth Inhibitory Effects Of Calotropis Procera’S Latex, Leaves And Roots Extracts, Marco Baluhya, Charles O Joseph May 2021

Bacterial Growth Inhibitory Effects Of Calotropis Procera’S Latex, Leaves And Roots Extracts, Marco Baluhya, Charles O Joseph

Tanzania Journal of Science

This study was conducted to evaluate in vitro antibacterial potential of water and ethanolic extracts from Calotropis procera roots, leaves and latex. The growth inhibitory effects of the extracts were tested against Escherichia coli using disc diffusion method. Amoxicillin was used as positive control, whereas ethanol and distilled water were used as negative controls. Results showed that water extracts from root, latex and leaves had 3.27 ± 0.14, 3.1 ± 0.21 and 2.38 ± 0.24 cm of maximum inhibition zones, while the ethanolic extracts showed 2.91 ± 0.19, 3.02 ± 0.16 and 0.84 ± 0.31 cm, respectively of maximum inhibition …


Application Of Optimal Control To Tuberculosis Model With Parameter Estimations: Bayesian Approach, Goodluck M Mlay, Alfred K Hugo May 2021

Application Of Optimal Control To Tuberculosis Model With Parameter Estimations: Bayesian Approach, Goodluck M Mlay, Alfred K Hugo

Tanzania Journal of Science

In this paper, one-strain tuberculosis (TB) model with two control mechanisms, education campaigns and chemoprophylaxis of TB-infected patients, was studied to determine their effects on the reduction of latent and active TB cases. In the case of analysis, boundedness and positivity of the model solutions were carried out to determine the biological feasibility of the study. Besides, the calibration of the parameters by utilizing the identifiability technique through the Markov chain Monte Carlo (MCMC) was thoroughly analysed. The optimum conditions for controlling TB were derived from the Pontryagin Maximum Principle. The numerical simulations were carried out using the forward-back sweep …


Variations In The Effects Caused By Magnetic Field On Chlorophyll, Nitrogen, Calcium, And Iron Contents In Species Of Vegetable Plants, Olusegun O. Alabi, Samuel O. Sedara, Kafayat Adeyemi, Felix Oladejo, Funmilayo Ayedun May 2021

Variations In The Effects Caused By Magnetic Field On Chlorophyll, Nitrogen, Calcium, And Iron Contents In Species Of Vegetable Plants, Olusegun O. Alabi, Samuel O. Sedara, Kafayat Adeyemi, Felix Oladejo, Funmilayo Ayedun

Tanzania Journal of Science

The rates of reduction in chlorophyll and nutrients such as nitrogen, calcium and iron with the distance or range of source of Magnetic Field (MF) had not been considered. In this work, patterns of damage or reduction caused by a magnetic field on two different species of vegetables were studied. The first group was planted in an environment without the influence of MF, while the second group was subjected to high MF under the 330 kV electric lines. The magnetometer was used to measure the MF intensities. The chlorophyll content of each vegetable sample was determined on the field with …


Spatial Distribution Patterns Of The Populations Of Two Subterranean Termites (Blattodea: Termitidae) In Eucalyptus (Myrtales: Myrtaceae) Plantations, Olaniyi T Alamu, Francis K Ewete, Ayangbade E Ayandokun, John A Ete May 2021

Spatial Distribution Patterns Of The Populations Of Two Subterranean Termites (Blattodea: Termitidae) In Eucalyptus (Myrtales: Myrtaceae) Plantations, Olaniyi T Alamu, Francis K Ewete, Ayangbade E Ayandokun, John A Ete

Tanzania Journal of Science

The study was conducted in Afaka, Northern Guinea Savanna of Nigeria to determine the spatial distribution patterns of the populations of Ancistrotermes sp. and Microtermes sp. in Eucalyptus camaldulensis Dehnh, Eucalyptus citriodora Hook, Eucalyptus cloeziana F. and Eucalyptus tereticornis Muell plantations. Spatial distributions patterns of the two termite species populations were determined using indices such as ratios of population variance to mean, Lloyd’s index, Green coefficient, Taylor power and Iwao’s regression models. The values of variance to mean ratios, Lloyd’s index and Green coefficient showed that the populations of both termite species had aggregated distribution pattern in all the Eucalyptus …


The Effect Of Additives And Mixed Treatment On Red Clover Silage Quality, Lian Tao, Zhu Yu, Liying Han May 2021

The Effect Of Additives And Mixed Treatment On Red Clover Silage Quality, Lian Tao, Zhu Yu, Liying Han

IGC Proceedings (1977-2023)

No abstract provided.


Distribution Of Crude Fat For A Halophyte (Suaeda Glauca) Growing In The Songnen Grassland, H. X. Sun, Ch. L. Liu, Ch. Sh. L. May 2021

Distribution Of Crude Fat For A Halophyte (Suaeda Glauca) Growing In The Songnen Grassland, H. X. Sun, Ch. L. Liu, Ch. Sh. L.

IGC Proceedings (1977-2023)

No abstract provided.


Study On Different Silages Of Seed Production And Production Rice Staw, Jing Shui, Jinhua Zhang, Youmin Gan, Wuling Chen May 2021

Study On Different Silages Of Seed Production And Production Rice Staw, Jing Shui, Jinhua Zhang, Youmin Gan, Wuling Chen

IGC Proceedings (1977-2023)

No abstract provided.


Fermentation Quality Of Italian Ryegrass (Lolium Multiflorum Lam.) Silages Treated With Additives, Shao Tao, A. Y. Wen, Ji. Wang, L. Zhang, Ju. Wang, M. Shimojo, Y. Masuda May 2021

Fermentation Quality Of Italian Ryegrass (Lolium Multiflorum Lam.) Silages Treated With Additives, Shao Tao, A. Y. Wen, Ji. Wang, L. Zhang, Ju. Wang, M. Shimojo, Y. Masuda

IGC Proceedings (1977-2023)

No abstract provided.


Study On The Decreasing Lipid Activity Of Chicory Root Extracts And Inulin, Hongmei Shang, Tianming Hu, Youjun Lu, Yujie Lou May 2021

Study On The Decreasing Lipid Activity Of Chicory Root Extracts And Inulin, Hongmei Shang, Tianming Hu, Youjun Lu, Yujie Lou

IGC Proceedings (1977-2023)

No abstract provided.


Genetic Resources Of Halophytes And Their Utilization For Sustainable Development Of Russian Rangelands, Nariman Shamsutdinov May 2021

Genetic Resources Of Halophytes And Their Utilization For Sustainable Development Of Russian Rangelands, Nariman Shamsutdinov

IGC Proceedings (1977-2023)

No abstract provided.


Changes In Herbage Quality Of Two Grasses From Inner Mongolia Grassland During Growing Season, Anne Schiborra, M. Gierus, H. W. Wan, Y. F. Bai, Friedhelm Taube May 2021

Changes In Herbage Quality Of Two Grasses From Inner Mongolia Grassland During Growing Season, Anne Schiborra, M. Gierus, H. W. Wan, Y. F. Bai, Friedhelm Taube

IGC Proceedings (1977-2023)

No abstract provided.


Biochemical Aspect Of Grazing Behavior On Mediterranean Rangelands, J. Rogosic, J. Kezic May 2021

Biochemical Aspect Of Grazing Behavior On Mediterranean Rangelands, J. Rogosic, J. Kezic

IGC Proceedings (1977-2023)

No abstract provided.


Variation Of Plant Diversity And Feeding Value In Gurbantunggut Desert Grassland, Y. B. Qian, Z. N. Wu, L. Y. Zhang, H. Y. Zhang May 2021

Variation Of Plant Diversity And Feeding Value In Gurbantunggut Desert Grassland, Y. B. Qian, Z. N. Wu, L. Y. Zhang, H. Y. Zhang

IGC Proceedings (1977-2023)

No abstract provided.


Fermentation Quality Of Tmr Silage With Green Tea Grounds Ensiled In Flexible Container Bag Silo, Ramli Mohd Noor, Yimin Cai, Ryuichi Uegaki, Hiroki Matsuyama, Chuncheng Xu, Norio Yoshida, Yasushi Tando, Tatsuo Miwa May 2021

Fermentation Quality Of Tmr Silage With Green Tea Grounds Ensiled In Flexible Container Bag Silo, Ramli Mohd Noor, Yimin Cai, Ryuichi Uegaki, Hiroki Matsuyama, Chuncheng Xu, Norio Yoshida, Yasushi Tando, Tatsuo Miwa

IGC Proceedings (1977-2023)

No abstract provided.


Voluntary Intake By Cattle Consuming Forage From Grasslands Of Different Quality, Jan Pozdíšek, A. Kohoutek, O. Látal, M. Svozilová, M. Štýbnarová May 2021

Voluntary Intake By Cattle Consuming Forage From Grasslands Of Different Quality, Jan Pozdíšek, A. Kohoutek, O. Látal, M. Svozilová, M. Štýbnarová

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Biological Additives On Fermentation And Nutritive Value Of Silage, Andres Olt, H. Kaldmäe, E. Songisepp, O. Kärt May 2021

Effect Of Biological Additives On Fermentation And Nutritive Value Of Silage, Andres Olt, H. Kaldmäe, E. Songisepp, O. Kärt

IGC Proceedings (1977-2023)

No abstract provided.


Persistence Of Chamaecrista Rotundifolia (Wynn) In Panicum Maximum (Ntchisi) Under Varying Spacing And Legume Planting Methods, Jimoh A. Olanite, Alaba O. Jolaosho, O. M. Arigbede, Olufemi S. Onifade, U. Y. Anele May 2021

Persistence Of Chamaecrista Rotundifolia (Wynn) In Panicum Maximum (Ntchisi) Under Varying Spacing And Legume Planting Methods, Jimoh A. Olanite, Alaba O. Jolaosho, O. M. Arigbede, Olufemi S. Onifade, U. Y. Anele

IGC Proceedings (1977-2023)

No abstract provided.


Nutritional Characterisation Of Vigna Unguiculata As Alternative Protein Source For Monogastric Animals, L. S. Muñoz, P. Sarria, Siriwan Martens, M. Peters, P. A. Aguirre, C. A. Montoya May 2021

Nutritional Characterisation Of Vigna Unguiculata As Alternative Protein Source For Monogastric Animals, L. S. Muñoz, P. Sarria, Siriwan Martens, M. Peters, P. A. Aguirre, C. A. Montoya

IGC Proceedings (1977-2023)

No abstract provided.


Near Term Challenges For Global Agriculture - Herbicide Resistant Weeds, Sharon Clay May 2021

Near Term Challenges For Global Agriculture - Herbicide Resistant Weeds, Sharon Clay

Agronomy, Horticulture and Plant Science Faculty Publications

Prior to the 1950s weeds were controlled by a wide variety of mechanical and cultural methods with limited use of inorganic chemicals at very high rates (100s kg ha–1). With the advent of selective carbon-based herbicides in the 1950s, herbicide weed management became the norm throughout much of the world using grams to a few kg of active ingredient per ha. However, with the benefits, there are problems. A few resistant weeds were recognized in the 1970s, but today, in 2021, 521 unique cases of resistance have been documented throughout the world. It is imperative for farmers to rethink the …


Influence Of Decay Fungi On Selected Anatomical Properties Of Aningeria Robusta A. Chev. Wood, Olayiwola Olaleye Ajala, Funke Grace Adebawo, Emmanuel Adekanye Adelusi, Olaoluwa Adeniyi Adegoke May 2021

Influence Of Decay Fungi On Selected Anatomical Properties Of Aningeria Robusta A. Chev. Wood, Olayiwola Olaleye Ajala, Funke Grace Adebawo, Emmanuel Adekanye Adelusi, Olaoluwa Adeniyi Adegoke

Journal of Bioresource Management

Due to population explosion, the forest of Nigeria like most tropical forest is over exploited for choice traditional species. Therefore, need to investigate species that can substitute the species arise. Five trees of Aningeria robusta were harvested from Cocoa Research Institute of Nigeria. Bolts of 50cm length were obtained at the base, middle and the top; radial strips also obtained for innerwood, middlewood and outerwood. Ten test specimens of dimension 12mm x 15mm x 25mm were obtained per zone. N-hexane heartwood extracts of a 30 year old Gliricidia sepium diluted with kerosene using volume by volume method into 0%, 25%, …


Fire Ant Venom Alkaloids: Possible Control Measure For Soilborne And Foliar Plant Pathogens, Sujan Dawadi, Fulya Baysal-Gurel, Karla M. Addesso, Prabha Liyanapathiranage, Terri Simmons May 2021

Fire Ant Venom Alkaloids: Possible Control Measure For Soilborne And Foliar Plant Pathogens, Sujan Dawadi, Fulya Baysal-Gurel, Karla M. Addesso, Prabha Liyanapathiranage, Terri Simmons

Agricultural and Environmental Sciences Faculty Research

The purpose of this study was to evaluate fire ant venom alkaloids and an alarm pheromone analog against several plant pathogens, including Botrytis cinerea, Fusarium oxysporum, Phytophthora nicotianae, P. cryptogea, Pseudomonas syringae, Phytopythium citrinum, Rhizoctonia solani, Sclerotonia rolfsii, Xanthomonas axonopodis, and X. campestris. All pathogens were tested against red imported fire ant venom alkaloid extract and alarm pheromone compound for growth inhibition in in vitro assay. The venom alkaloid extract inhibited fungal and oomycete pathogens. Neither of the treatments were effective against bacterial pathogens. Three soilborne pathogens, P. nicotianae, R. solani, F. oxysporum, and one foliar pathogen, B. cinerea were …


The Research On The Sodium Bicarbonate Solution Cures The Ryegrass Hay, Zhilan Mu May 2021

The Research On The Sodium Bicarbonate Solution Cures The Ryegrass Hay, Zhilan Mu

IGC Proceedings (1977-2023)

No abstract provided.