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Articles 7591 - 7620 of 11789
Full-Text Articles in Agronomy and Crop Sciences
Improved Forage Seed Availability In Southern Uganda, P. Grimaud, S. G. Byenkya, Elly N. Sabiiti
Improved Forage Seed Availability In Southern Uganda, P. Grimaud, S. G. Byenkya, Elly N. Sabiiti
IGC Proceedings (1977-2023)
No abstract provided.
Temperature And Time Variables For Accelerated Aging Testing Of Leymus Chinensis Seed, Peisheng Mao, S. J. Chang, Y. H. Wang, J. J. Lian
Temperature And Time Variables For Accelerated Aging Testing Of Leymus Chinensis Seed, Peisheng Mao, S. J. Chang, Y. H. Wang, J. J. Lian
IGC Proceedings (1977-2023)
No abstract provided.
Germination Of Five Perennial Rhizome Grasses (Poaceae) In Response To Na2Co3 Stress, H. Y. Ma, Z. W. Liang, L. H. Huang, M. Liu, C. Yan, Z. C. Wang
Germination Of Five Perennial Rhizome Grasses (Poaceae) In Response To Na2Co3 Stress, H. Y. Ma, Z. W. Liang, L. H. Huang, M. Liu, C. Yan, Z. C. Wang
IGC Proceedings (1977-2023)
No abstract provided.
Study On Zoysiagrass (Zoysia Japonica Steud.) Seed Production Technology, Chunhui Ma, Jianguo Han, Peng Li
Study On Zoysiagrass (Zoysia Japonica Steud.) Seed Production Technology, Chunhui Ma, Jianguo Han, Peng Li
IGC Proceedings (1977-2023)
No abstract provided.
The Standardization Breeding Systematic Construction For Seed Production Of Qiancao No. 2 Tall Fescue, Tianqiong Luo, Bentian Mo, Zhongfu Long, Junjiang Meng, Ruixiang Chen
The Standardization Breeding Systematic Construction For Seed Production Of Qiancao No. 2 Tall Fescue, Tianqiong Luo, Bentian Mo, Zhongfu Long, Junjiang Meng, Ruixiang Chen
IGC Proceedings (1977-2023)
No abstract provided.
Megasporogenesis, Microsporogenesis And Development Of Male And Female Gametophytes In Ceratoides Arborescens, Lina Lu, Xiao He, Jin Yi, Qingfeng Li
Megasporogenesis, Microsporogenesis And Development Of Male And Female Gametophytes In Ceratoides Arborescens, Lina Lu, Xiao He, Jin Yi, Qingfeng Li
IGC Proceedings (1977-2023)
No abstract provided.
Effects Of Seed Size And Temperature On Seed Dormancy In An Alpine Meadow On The Eastern Tsinghai‐Tibet Plateau, Wenlong Li, Jing Xu, Guozhen Du, Zizhen Li
Effects Of Seed Size And Temperature On Seed Dormancy In An Alpine Meadow On The Eastern Tsinghai‐Tibet Plateau, Wenlong Li, Jing Xu, Guozhen Du, Zizhen Li
IGC Proceedings (1977-2023)
No abstract provided.
The Primary Study On Morphological Variations Of Elytrigria Repens Germplasm Resources, Peiying Li, Zongjiu Sun, Abulaiti
The Primary Study On Morphological Variations Of Elytrigria Repens Germplasm Resources, Peiying Li, Zongjiu Sun, Abulaiti
IGC Proceedings (1977-2023)
No abstract provided.
Study On Course Of Germinating, Seedling And Developing Of Ceratoides Seeds, Kurban Nizamidin, Israyil Barat
Study On Course Of Germinating, Seedling And Developing Of Ceratoides Seeds, Kurban Nizamidin, Israyil Barat
IGC Proceedings (1977-2023)
No abstract provided.
The Effect Of Chemical Scarification And Washing On The Germination Of Ferula Ovina Seeds, H. R. Keshtkar, F. Mellati
The Effect Of Chemical Scarification And Washing On The Germination Of Ferula Ovina Seeds, H. R. Keshtkar, F. Mellati
IGC Proceedings (1977-2023)
No abstract provided.
Varietal Difference In The Pre‐Germination Flooding Tolerance Of Commercial Cultivars Of Silage Corn And The Availability Of A Ridge‐Making Seeder For The Avoidance Of Wet Injury To Corn Seeds, Tsutomu Kanno, Souichiro Morita, Shunji Kurokawa, Setsuro Sato, Yoshiro Mano, Toshihiko Ibuki, Noritoshi Sumida, Hidehiko Inoue, Seiji Nakao, Hisashi Hosokawa
Varietal Difference In The Pre‐Germination Flooding Tolerance Of Commercial Cultivars Of Silage Corn And The Availability Of A Ridge‐Making Seeder For The Avoidance Of Wet Injury To Corn Seeds, Tsutomu Kanno, Souichiro Morita, Shunji Kurokawa, Setsuro Sato, Yoshiro Mano, Toshihiko Ibuki, Noritoshi Sumida, Hidehiko Inoue, Seiji Nakao, Hisashi Hosokawa
IGC Proceedings (1977-2023)
No abstract provided.
Effects Of Storage Conditions On The Germinability Of Seeds Of Three Different Browse Plants, Alaba O. Jolaosho
Effects Of Storage Conditions On The Germinability Of Seeds Of Three Different Browse Plants, Alaba O. Jolaosho
IGC Proceedings (1977-2023)
No abstract provided.
Raising Seedling Of Longstalk Peach, Ming Jia, Gele Qing, Yuzhi Wang
Raising Seedling Of Longstalk Peach, Ming Jia, Gele Qing, Yuzhi Wang
IGC Proceedings (1977-2023)
No abstract provided.
The Role Of The Lens In Controlling Physical Dormancy Breakdown In Three Legume Species, X. W. Hu, Yanrong Wang
The Role Of The Lens In Controlling Physical Dormancy Breakdown In Three Legume Species, X. W. Hu, Yanrong Wang
IGC Proceedings (1977-2023)
No abstract provided.
Different Priming Treatments To Influence The Germination Of Atriplex L., Shengrong Hu, Dandan Zhou, Yong Gao
Different Priming Treatments To Influence The Germination Of Atriplex L., Shengrong Hu, Dandan Zhou, Yong Gao
IGC Proceedings (1977-2023)
No abstract provided.
Effect Of Drought Stress On The Viability Of Wild Lespedeza Dahurica Seeds, Zhibing Hou, Xiang Zhao, Zhiming Bai
Effect Of Drought Stress On The Viability Of Wild Lespedeza Dahurica Seeds, Zhibing Hou, Xiang Zhao, Zhiming Bai
IGC Proceedings (1977-2023)
No abstract provided.
Characterization, Incidence, And Epidemiology Of Two Novel Strawberry Rhabdoviruses, Ava Wait
Characterization, Incidence, And Epidemiology Of Two Novel Strawberry Rhabdoviruses, Ava Wait
Graduate Theses and Dissertations
Strawberry is the most important berry crop, grown in most temperate regions around the world. In the early 2000s and in 2012-2013, viral disease devastated strawberry production in California and Florida respectively; causing multimillion dollar losses. This occurred because viruses were moving in the field undetected. The modern strawberry (Fragaria x ananassa Duch.) is tolerant to single and double infections; yet when several viruses infect plants, symptoms as severe as plant death can occur. To prevent future epidemics, the use of virus-tested planting materials is essential. In 2019, rhabdovirus-like sequences were detected in strawberry using a combination of high-throughput sequencing …
The Influence Of Singlet Oxygen And Loss Of Function Of Fatty Acid Desaturase 7 In The Chloroplast On Aphid Resistance In Arabidopsis Thaliana, Hillary Donna Fischer
The Influence Of Singlet Oxygen And Loss Of Function Of Fatty Acid Desaturase 7 In The Chloroplast On Aphid Resistance In Arabidopsis Thaliana, Hillary Donna Fischer
Graduate Theses and Dissertations
Fatty Acid Desaturase 7 (FAD7) is a chloroplast-localized enzyme that alters the fatty acid content of photosynthetic membranes, and that negatively regulates plant defenses against aphids. Previous studies in the model organism Arabidopsis (Arabidopsis thaliana) have shown that loss-of-function mutations in FAD7 decrease population growth of the green peach aphid (GPA; Myzus persicae Sulzer). This study further characterized the effects of a fad7 null mutant on aphids, and investigated the role of reactive oxygen species (ROS), including singlet oxygen (1O2), in plant responses to aphid resistance in fad7 as well as in wild type plants and a mutant with heightened …
Long-Term Changes In Soil Surface Properties As Affected By Management Practices In A Wheat-Soybean, Double-Crop System, Machaela Morrison
Long-Term Changes In Soil Surface Properties As Affected By Management Practices In A Wheat-Soybean, Double-Crop System, Machaela Morrison
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Long-term agricultural sustainability and productivity are controlled by the integrative effects of different management practices on the soil. Many Arkansas producers use the double-crop system to grow soybeans [Glycine max (L.) Merr] and wheat (Triticum aestivum L.). Studying combinations of different, non-traditional, alternative agricultural techniques may help producers better understand the long-term implications of various management practice options on sustainability and productivity. The objective of this study was to evaluate the effects of agricultural management practices, including residue level, tillage, irrigation, and burning, and soil depth on the change in various soil properties from 2010 to 2020 in …
Baseline Sensitivity To Dmi Fungicides In Cercospora Spp. And Corynespora Spp. In Arkansas Soybeans, Evan Buckner
Baseline Sensitivity To Dmi Fungicides In Cercospora Spp. And Corynespora Spp. In Arkansas Soybeans, Evan Buckner
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Cercospora spp. and Corynespora spp. are two common foliar fungal pathogens in Arkansas amongst other soybean producing areas. Two primary diseases caused by Cercospora spp. are Cercospora Leaf Blight (CLB, caused mainly by C. kikuchii) and Frogeye Leaf Spot (C. sojina). Both diseases affect foliage, and when lesions collapse, leaves may fall prematurely resulting in yield loss. In the specific case of CLB, this is a disease on the rise since 2000, and also causes seed infection reducing seed quality. Target spot is a disease caused by Corynespora cassiicola, and is of less damaging for farmers in larger …
Resistance Screening And Association Mapping For Resistance To The Downy Mildew Pathogen Of Spinach, Dotun Olaoye
Resistance Screening And Association Mapping For Resistance To The Downy Mildew Pathogen Of Spinach, Dotun Olaoye
Graduate Theses and Dissertations
Spinach is an important cool leafy vegetable cultivated around the world, with large scale production in California and Arizona in the U.S. Spinach is a highly nutritious vegetable beneficial in the human diet. Spinach is affected by a number of biotic stressors. Downy mildew, caused by the oomycete pathogen Peronospora effusa, is a major threat to spinach as it affects the leaf quality and impacts the economic value of spinach. Several efforts have led to the development of resistant genotypes/cultivars to this pathogen. However, few studies have examined the genetics of resistance to the downy mildew pathogen in detail. This …
Does Integrating Crops With Livestock Production Impact Soil Properties And Crop Production?, Lindsey Anderson
Does Integrating Crops With Livestock Production Impact Soil Properties And Crop Production?, Lindsey Anderson
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Re-integrating crop and livestock production through cover crop (CC) and corn residue grazing could efficiently utilize resources and ensure profitability while improving environmental quality, but how this integration affects soils and crops is not well understood. We conducted two studies to address this. In the first study, we evaluated the impact of cattle (1.3-3.7 head ha-1) grazing an oat (Avena sativa L.) CC on soil and crop yields in two adjacent irrigated no-till corn (Zea mays L.)-soybean (Glycine max L.) fields on silt loam soils in eastern Nebraska. Field I was grazed twice, while Field …
Production, Evaluation, And Selection Of Elite Quality Protein Popcorn (Qpp) Hybrids, Leandra Marshall Parsons
Production, Evaluation, And Selection Of Elite Quality Protein Popcorn (Qpp) Hybrids, Leandra Marshall Parsons
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
In 2017, twelve Quality Protein Popcorn (QPP) inbred lines were developed and selected as premier dent by popcorn crosses fit for hybridization and testing. These QPP inbred lines were derived from specific Quality Protein dent Maize (QPM) by ConAgra Brands® popcorn line crosses to produce high lysine, vitreous popcorn lines capable of near-equal popping characteristics compared to the original popcorn parents. The QPP hybridization project commenced in the summer of 2018 utilizing these 12 inbred QPP lines and crossing them in a full diallel. Since then, the production of QPP hybrids has employed a diverse set of selection factors evaluating …
The Effect Of Anionic Surfactants On Herbicide Mixtures And Solutions, Ely Daniel Anderson
The Effect Of Anionic Surfactants On Herbicide Mixtures And Solutions, Ely Daniel Anderson
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Herbicide mixtures are popular for farmers to delay the evolution of herbicide-resistant biotypes from occurring and control existing herbicide-resistant weeds. Glufosinate is a contact herbicide that has been observed as a mixture partner with many herbicides. In many cases, antagonistic interactions have occurred when using glufosinate in mixture with other herbicides. The antagonistic interactions have resulted in applications with incomplete weed control. Adjuvants have been known to impact an herbicide application by increasing herbicide penetration, spreadability, and efficacy. Adjuvants added to glufosinate mixtures can impact spray applications and increase weed control. The objectives of this research were: (1) investigate the …
Evaluation Of Irrigation And Nutrient Management Strategies In Rice Using Alternative Irrigation Methods, Justin Lee Chlapecka
Evaluation Of Irrigation And Nutrient Management Strategies In Rice Using Alternative Irrigation Methods, Justin Lee Chlapecka
Graduate Theses and Dissertations
As water resources gain value across the Mid-South, alternative irrigation strategies of rice (Oryza sativa L.) have garnered increasing attention. In 2015, an estimated 1.7% of Arkansas rice hectarage used alternate wetting and drying (AWD) irrigation and 0.9% used furrow irrigation. As of 2020, 2.5% used AWD and 16.9% used furrow irrigation, the latter accounting for near 99,000 ha in Arkansas. Little information exists in the scientific literature in relation to management of rice grown in the Mid-South without a conventional flood. This fact coupled with the rapid adoption rate, especially for furrow-irrigated rice (FIR), during the last five years …
Screening And Breeding Soybean For Flood Tolerance, Maria Roberta De Oliveira
Screening And Breeding Soybean For Flood Tolerance, Maria Roberta De Oliveira
Graduate Theses and Dissertations
Waterlogging can be detrimental to soybean [Glycine max (L.) Merr.] growth and development, with effects ranging from chlorosis and stunting to yield loss and plant death. Soybean responses to, and the effects of, waterlogging are dependent on the growth stage of the plant at the initiation of waterlogging. The objectives of this study were: (1) to assess the effectiveness of Genomic Selection (GS), Marker Assisted Selection (MAS) and Phenotypic Selection for flood tolerance at the progeny row stage as compared to random selection, for the development of high-yielding flood-tolerant lines; and (2) to compare field-screening and hydroponic greenhouse screening methodologies …
Quality Determinates Of Rice Price In Open Bag Markets In Sub-Saharan Africa, Bailey Peterson-Wilhelm
Quality Determinates Of Rice Price In Open Bag Markets In Sub-Saharan Africa, Bailey Peterson-Wilhelm
Graduate Theses and Dissertations
Weaknesses in the grades and standards system in low-income countries across Sub-Saharan Africa undermine the transparency of agricultural markets. In the Democratic Republic of the Congo (DRC), Ghana and Mozambique rice is predominately sold in open bags and if rice price does not reflect its quality, then inefficiencies may lead to consumer welfare losses. Importantly, it is possible that impoverished communities are priced out of the market due to inflated and inefficient prices. The objective of this study is to examine determinates of rice price by estimating the impact of selected rice quality attributes on rice prices in DRC, Ghana …
Crop Response To Low-Dose Dicamba, Mason Castner
Crop Response To Low-Dose Dicamba, Mason Castner
Graduate Theses and Dissertations
The introduction of dicamba-resistant (DR) soybean [Glycine max (L.) Merr.] and cotton (Gossypium hirsutum L.) followed by a label allowing over-the-top applications of dicamba in the 2017 provided growers an additional option for broadleaf weed control. Because non-DR soybean is sensitive to low concentrations of dicamba, postemergence dicamba applications present growers choosing to plant non-DR soybean with concerns of damage from off-target movement through physical drift and volatilization of the herbicide as well as tank-contamination from prior dicamba application. Consequences of low-dose dicamba exposure on sensitive vegetative and reproductive soybean have been well researched, but little is known regarding the …
Starter Nitrogen Source And Preflood Nitrogen Rate Effects On Rice Grown On Clay Soils, Linda Rachelle Martin
Starter Nitrogen Source And Preflood Nitrogen Rate Effects On Rice Grown On Clay Soils, Linda Rachelle Martin
Graduate Theses and Dissertations
Seedling rice (Oryza sativa L.) grown on clayey-textured soils generally develops slowly as compared to loamy-textured soils. Our research examined the effects of starter-N source and preflood-N rates on canopy closure, total aboveground N uptake, and grain yield of rice grown on clayey-textured soils. Eleven field trials were established in Arkansas and Mississippi including five trials with a hybrid cultivar and six trials using a pure-line cultivar. Starter-N sources included no starter-N (NONE), ammonium sulfate (AMS), diammonium phosphate (DAP), and urea (UREA) applied at 24 kg N ha-1 at the rice 2-leaf stage and five preflood-N rates ranging from 0-224 …
Short-Term Effects Of Winter Cover Crops On Soil Properties, Yield, And Partial Returns In A No-Tillage Soybean Rotation, Drew Dillon Kirkpatrick
Short-Term Effects Of Winter Cover Crops On Soil Properties, Yield, And Partial Returns In A No-Tillage Soybean Rotation, Drew Dillon Kirkpatrick
Graduate Theses and Dissertations
Cover crops have the potential to provide many benefits including weed suppression, erosion control, and improvements to soil quality. These benefits can be affected by species, biomass accumulation, and management practices. Although large amounts of biomass are good for maximizing benefits, it can result in problems for establishing the subsequent crop. Soybean [Glycine max (L.) Merr.] accounts for over 50% of Arkansas crop hectares annually; therefore, understanding the effect that a cover crop can have on the following soybean crop is crucial to the successful implementation of cover crops within the state. A study was established to evaluate winter cover …