Digital Commons Network^™

Leveraging Data, Models And Farming Innovation To Prevent, Prepare For And Manage Pest Incursions: Delivering A Pest Risk Service For Low-Income Countries, Bryony Taylor, Henri Edouard Zefack Tonnang, Tim Beale, William Holland, Mary Lucy Oronje, Elfatih Mohamed Abdel-Rahman, David Onyango, Cambria Finegold, Jessica Zhu, Stefania Pozzi, Sean T. Murphy

All Peer-Reviewed Publications

Globally, pests (invertebrates, vertebrates, pathogens, weeds) can cause estimated annual losses of between 20% and 40%, but higher losses are disproportionately experienced by many low-income countries, as agriculture is the mainstay of the majority of the people and of national economies. Pests pose a major barrier to these countries’ ability to meet the aims of the UN Sustainable Development Goals (SDGs), particularly SDG2, “End hunger, achieve food security and improved nutrition and promote sustainable agriculture.” However, solutions, in the form of pest risk alert systems, coupled with major advances in technology, are now providing opportunities to overcome this barrier in …

Antibacterial, Antioxidant, And Repellency Potential Of The Essential Oil From Spartium Junceum L. Grown In Lebanon, Hawraa Zahrddin, Mahmoud Khalil, Akram Hijazi

BAU Journal - Science and Technology

The goal of our present study is to assess the pharmacological potential of essential oil extracted from Spartium junceum cultivated in Lebanon. This oil was obtained by hydrodistillation using the Clevenger apparatus. Then, an organoleptic characterization and an evaluation of its antioxidant, repellent/insecticidal, and antibacterial activities have been evaluated. The obtained results showed that this oil had an antioxidant activity reaching 82 % dependent on the dilution used. In addition, it showed an insecticidal effect and an antibacterial effect.

Transformation And Gene Editing In The Bioenergy Grass Miscanthus, Anthony Trieu, Mohammad B. Belaff, Pradeepa Hirannaiah, Shilpa Manjunatha, Rebekah Wood, Yokshitha Bathula, Rebecca L. Billingsley, Anjali Arpan, Erik J. Sacks, Thomas E. Clemente, Stephen P. Moose, Nancy A. Reichert, Kankshita Swaminathan

Department of Agronomy and Horticulture: Faculty Publications

Background: Miscanthus, a C4 member of Poaceae, is a promising perennial crop for bioenergy, renewable bioproducts, and carbon sequestration. Species of interest include nothospecies M. x giganteus and its parental species M. sacchariforus and M. sinensis. Use of biotechnology-based procedures to genetically improve Miscanthus, to date, have only included plant transformation procedures for introduction of exogenous genes into the host genome at random, non-targeted sites.

Results: We developed gene editing procedures for Miscanthus using CRISPR/Cas9 that enabled the mutation of a specific (targeted) endogenous gene to knock out its function. Classified as paleo-allopolyploids (duplicated ancient …

New Semi-Dwarfing Alleles With Increased Coleoptile Length By Gene Editing Of Gibberellin 3-Oxidase 1 Using Crispr-Cas9 In Barley (Hordeum Vulgare L.), Jingye Cheng, Camilla Hill, Yong Han, Tianhua He, Xingguo Ye, Sergey Shabala, Ganggang Guo, Meixue Zhou, Ke Wang, Chengdao Li

Grain and Other Field Crops Research Articles

The green revolution was based on genetic modification of the gibberellin (GA) hormone system with “dwarfing” gene mutations that reduces GA signals, conferring shorter stature, thus enabling plant adaptation to modern farming conditions. Strong GA-related mutants with shorter stature often have reduced coleoptile length, discounting yield gain due to their unsatisfactory seedling emergence under drought conditions. Here we present gibberellin (GA) 3-oxidase1 (GA3ox1) as an alternative semi-dwarfing gene in barley that combines an optimal reduction in plant height without restricting coleoptile and seedling growth. Using large-scale field trials with an extensive collection of barley accessions, we showed that a natural …

Yield Prediction Through Integration Of Genetic, Environment, And Management Data Through Deep Learning, Daniel R. Kick, Jason G. Wallace, James C. Schnable, Judith M. Kolkman, Barış Alaca, Timothy M. Beissinger, Jode Edwards, David Ertl, Sherry Flint-Garcia, Joseph L. Gage, Candice N. Hirsch, Joseph E. Knoll, Natalia De Leon, Dayane C. Lima, Danilo E. Moreta, Maninder P. Singh, Addie Thompson, Teclemariam Weldekidan, Jacob D. Washburn

Department of Agronomy and Horticulture: Faculty Publications

Accurate prediction of the phenotypic outcomes produced by different combinations of genotypes, environments, and management interventions remains a key goal in biology with direct applications to agriculture, research, and conservation. The past decades have seen an expansion of new methods applied toward this goal. Here we predict maize yield using deep neural networks, compare the efficacy of 2 model development methods, and contextualize model performance using conventional linear and machine learning models. We examine the usefulness of incorporating interactions between disparate data types. We find deep learning and best linear unbiased predictor (BLUP) models with interactions had the best overall …

Genetic Variation In Common Bunt Resistance In Synthetic Hexaploid Wheat, Amira M. I. Mourad, Alexey Morgounov, P. Stephen Baenziger, Samar M. Esmail

Department of Agronomy and Horticulture: Faculty Publications

Common bunt (caused by Tilletia caries and T. Foetida) is a major wheat disease. It occurs frequently in the USA and Turkey and damages grain yield and quality. Seed treatment with fungicides is an effective method to control this disease. However, using fungicides in organic and low-income fields is forbidden, and planting resistant cultivars are preferred. Due to the highly effective use of fungicides, little effort has been put into breeding resistant genotypes. In addition, the genetic diversity for this trait is low in modern wheat germplasm. Synthetic wheat genotypes were reported as an effective source to increase the …

Is There An Economic Advantage To Planting Diverse Summer Annual Forage Mixtures?, Kelly Mercier, Chris Teutsch, Ray Smith, Kenny Burdine, Edwin Ritchey, Eric Vanzant

Journal of Extension

This study examined economic implications of planting summer annual mixtures of grasses, legumes, and forbs at varying nitrogen rates. No differences in yield occurred between the three mixtures, indicating that mixtures with lowest seed cost will be most economical. Applying N resulted in yield increases of 12.26 lb DM per lb N applied. Although yield responses to N were positive, sensitivity analyses showed that applying N resulted in positive net returns only when hay prices were high and N prices were low. When utilization rates are accounted for, enterprise budgets determined grazing to be 18% cheaper to implement than haying.

Inheritance Of 2,4‑Dichlorophenoxyacetic Acid (2,4‑D) Resistance In Amaranthus Palmeri, Chandrima Shyam, Dallas E. Peterson, Amit J. Jhala, Mithila Jugulam

Department of Agronomy and Horticulture: Faculty Publications

In this study, the inheritance of 2,4-D resistance in a multiple herbicide-resistant Palmer amaranth (KCTR) was investigated. Direct and reciprocal crosses were performed using 2,4-D-resistant KCTR and susceptible KSS plants to generate F₁ progenies. 2,4-D dose–response assays were conducted to evaluate the response of progenies from each F₁ family along with KCTR and KSS plants in controlled environmental growth chambers. Additionally, 2,4-D-resistant male and female plants from each of the F₁ families were used in pairwise crosses to generate pseudo-F₂ families. Segregation (resistance or susceptibility) of progenies from the F₂ families in response to a …

A Stealth Health Approach To Dietary Fibre, P. Stephen Baenziger, Katherine Anna Frels, Steve Greenspan, Julie Jones, Alison Lovegrove, Devin J. Rose, Peter Shewry, Rod Wallace

Department of Agronomy and Horticulture: Faculty Publications

Average dietary fibre intakes have increased little in the past twenty years in many countries, including the USA¹ . Multi-million-dollar campaigns promoting fruits, vegetables, whole grains and other foods high in fibre have delivered only small changes in diets² , and consumers have not changed from traditional staples to whole-grain options³ . UK millers report that consumption of whole-wheat bread has actually declined over the past decade (P. Shewry, personal communication). In the US, white flour, which is lower in fibre than whole-wheat flour, accounts for nearly 40% of the fibre intake⁴ . We believe that …

Studi Pendahuluan Regenerasi Eksplan Teh Sebagai Upaya Percepatan Penyediaan Bibit Unggul Secara In Vitro, Intan Ratna Dewi Anjarsari, Erni Suminar, Murgayanti

Jurnal Kultivasi

Pembiakan generatif tanaman teh yang dilakukan dengan biji, sementara secara vegetatif dengan setek tunas yang mempunyai kelemahan, antara lain jumlah bibit yang dihasilkan terbatas, perlu waktu lama untuk menyeleksi pohon induk, dan bibit yang dihasilkan kurang optimal dalam penyerapan air dan unsur hara karena perakarannya dangkal sehingga kurang toleran terhadap kekeringan. Kultur jaringan menjadi salah satu alternatif dalam perbanyakan teh memperoleh klon teh unggul, seperti klon Seri Gambung 1-11, dalam jumlah banyak dan sifatnya yang seragam. Penelitian pendahuluan ini dilaksanakan di Laboratorium Kultur Jaringan Departemen Budidaya Pertanian Fakultas Pertanian UNPAD, mulai bulan Juni hingga Desember 2021. Penelitian terdiri dari dua …

Respons Pertumbuhan Biomassa Bagian Atas Bibit Kelapa Sawit Akibat Pemberian Kompos Pelepah Kelapa Sawit, Pupuk Hayati, Dan Asam Humat, Mira Ariyanti, Esnakelga Bernadetha Keliat, Cucu Suherman, Santi Rosniawaty, Mochamad Arief Soleh

Jurnal Kultivasi

Pemberian pupuk anorganik dapat meningkatkan pertumbuhan tanaman, tetapi penggunaan secara terus menerus menyebabkan dampak kurang baik bagi tanaman dan lingkungan pertanaman. Penelitian ini berkaitan dengan pentingnya penggunaan pupuk organik dalam mengurangi penggunaan pupuk anorganik sebagai salah satu langkah untuk mewujudkan perkebunan kelapa sawit (Elaeis guineensis Jacq.) yang berkelanjutan. Tujuan penelitian ini adalah untuk mengetahui respons pertumbuhan biomassa bagian atas bibit kelapa sawit akibat pemberian kompos pelepah kelapa sawit yang dikombinasikan dengan pupuk hayati dan asam humat. Percobaan dilaksanakan di Kebun Percobaan Ciparanje, Fakultas Pertanian, Universitas Padjadjaran pada bulan Januari – Juli 2020. Penelitian disusun menggunakan Rancangan Acak Kelompok (RAK) dengan …

Genetic Variations Of Narcissus Tazetta And Selected Narcissus Cultivars Based On The Sequence Analysis Of Nrits And TrnL‑Is‑TrnF Regions, Seo Young Park, Mi Jin Jeon, Young Hee Joung, Keenan L. Amundsen, Gianluca Burchi, Angelo Porcelli, Mark S. Roh

Department of Agronomy and Horticulture: Faculty Publications

Narcissus tazetta var. chinensis (N. taz. var. chi.) accessions collected from the coastal areas of China, Korea, and Japan were compared with accessions of lower ranks of Narcissus tazetta (N. taz.) from Italy to study the genetic variations and with several morphologically similar cultivars available in the trade. Sequences of the internal transcribed spacer (ITS) regions of nuclear ribosomal DNA (nrITS) dendrogram and the chloroplast trnL-IS-trnF intergeneric spacer-gene (cpIS) were analyzed by maximum likelihood (ML) and posterior probability using STRUCTURE program. All single fower form of N. taz. var. chi. collected from China, Korea, and …

The Growth Of 'Crystal' Guava Seedling In Response To Pinching And Dormancy Breaking Chemicals, Raden Ajeng Diana Widyastuti, Setyo Dwi Utomo, Darwin H. Pangaribuan, Purba Sanjaya, Hayane Adeline Warganegara, Widia Agustin

Jurnal Kultivasi

Pinching and dormancy breaking chemicals (DBC) application are potentially used to regulate the growth of plant. This study aims to evaluate the growth response of ‘Crystal’ guava (Psidium guajava L.) seedling in response to pinching and DBC application. This experiment was carried out in the Integrated Field Laboratory, Faculty of Agriculture, Universitas Lampung from March to June 2021, with a randomized completely block design (RCBD) with 2 factors (pinching and DBC) and repeated four times. The results showed that pinching could reduce the increase of height of guava seedling. The combination of pinching with DBC could significantly increase the number …

Potential Use Of Pgpr Based Biofertilizer For Improving The Nutrient Availability In Soil And Agronomic Efficiency Of Upland Rice, Rahma Tia Harahap, Diyan Herdiyantoro, Mieke Rochimi Setiawati, Isna Niar Rahmatul Azizah, Tualar Simarmata

Jurnal Kultivasi

Present study aimed to perform literature review to investigate the current status and potential use of plant growth promoting rhizobacteria (PGPR) for enhancing the soil plant’s health, plant growth and productivity in sustainable ways. The Systematic Literature Review (SLR) methods was applied according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) on published scientific literature from 2012-2022. Results revealed that genus diversity of PGPR (Bacillus sp., Serratia sp., Streptomyces sp., Pseudomonas sp., and Burkholderia sp.) produce siderophore and phytohormones such as indole-3-acetic acid (IAA), gibberellin (GAs), auxin, and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity, organic acids, biocontrol agent that …

Evaluation For Using Expended Bioelectrochemical Systems As Soil Amendments For Improved Corn Plant Growth And A Drought Resistant Soil., Jackson Lee Sauers

Theses and Dissertations

A long-held practice is to mix agricultural soil with a soil amendment to improve growing conditions in crops. A common soil amendment is biosolids produced from both municipal and dairy wastewater due to the macro- and micronutrients within it. Both the agricultural and wastewater industries are participating in the Circular Economy concept (CEC). Two experiments explored using expended bioelectrochemical systems (BES) that treated either synthetic dairy wastewater (DWW) or synthetic municipal wastewater (SWW) as soil amendments to improve corn plant growth when treated with three different nutrient treatments: 100%- 50%- and 0% Hoagland Nutrient Solutions. Biochar and used terracotta clay …

Evaluation Of Warm Season Vegetables Using Sustainable Production Practices, Jacob Arthur

Theses and Dissertations

Sustainable practices were evaluated for the production of two warm season vegetable crops, tomato and chile peppers. The first study investigated the plant vegetative growth, fruit production timing, yield components and fruit quality of three hybrid and three heirloom tomato cultivars grown in a high tunnel using grafted and non-grafted plants. Grafting the selected tomato cultivars with the two rootstock types did not alter total marketable yield of any cultivar, but affected overall stem diameter, fruit color, and β-carotene concentrations of tested tomato cultivars. The second study evaluated the plant growth, yield, and fruit quality of nine heirloom chile pepper …

Animal Husbandry In The 21st Century: Application Of Ecological Theory And Precision Technology To Inform Understanding Of Modern Grazing Systems, Ira Lloyd Parsons

Theses and Dissertations

Ruminant animals comprise the greatest proportion of herbivores around the world, provide essential ecosystem services and human consumable protein by consuming grass and human inedible dietary fiber. Herbivory pressure alters plant communities and species diversity, effectively making grazing animals ecosystem engineers in dynamic ecosystems. Development of advanced computer processing power coupled with biometric and ecosystem sensors may be employed in the internet of things framework to create an integrated information system designed to inform understanding of grazing system function and animal energy balance. Towards this end, I utilized Bos indicus / Bos taurus crossbred steers (n = 20) across two …

Biological Remediation Of Fragipan, Corey Hale

Honors College Theses

The fragipan layer in the soil is a naturally occurring subsurface layer that restricts water percolation as well as inhibits root growth. A fragipan layer can be found almost ubiquitously across Southwestern Kentucky. This limits how agriculturalists manage soils in this area. It has been recently discovered by the University of Kentucky that Annual Ryegrass roots produce 3,4 dihydroxyphenylpropionic acid (DHPPA) that reacts with this hardpan to weaken the layer. Certain bacteria, such as Escherichia coli, Lactobacilli, and Bifidobacteria can also synthesize DHPPA through a breakdown process of chlorogenic acid. This reaction typically happens in the human digestive tract. …

Development Of Adaptive Rice Variety To Non-Tidal Swamp: Growth Evaluation Of Backcrossed Progenies (Bc1f1) And Its Parents, Inpago 5 And Inpara 8, Nabilah Amiros, Rujito Agus Suwignyo, Mery Hasmeda, Fikri Adriansyah, Entis Sutisna Halimi, Erizal Sodikin

Jurnal Kultivasi

Rice (Oryza sativa L.) cultivation in non-tidal swamp is severely constrained by abiotic stresses, i.e., submerged stress in the vegetative phase and drought stress in the generative phase. The development of rice varieties that have dual-tolerant to those abiotic stresses can improve adaptability and increase productivity. Efforts to obtain adaptive varieties under those abiotic stress conditions are being carried out by selecting the parents and crossing them, and has resulted in the population of BC1F1. The research was carried out on April – June 2021 at greenhouse of the Agriculture Faculty, Sriwijaya University. The study aimed to evaluate the growth …

A Review Of The Role Of Pollination On The Yield Of Cocoa Plant, Dani, Dewi Nur Rokhmah

Jurnal Kultivasi

Yield of cocoa (Theobroma cacao L.) plant, in form of cocoa seeds, is produced through the process of sexual reproduction. Pollination plays an important role in the successful formation of cocoa fruit and seeds. In addition, number of ovules per ovary, degree of self-incompatibility, and xenia effect are also affected the final yield. Those characters are determined by genetic factors. Cocoa flowers that are not pollinated fall within 24 hours and fail to develop into fruits and seeds. Pollination intensity up to a certain level showed a significant effect on increasing the percentage of fruit formation and the number of …

Demonstration Farm Provides Educational Opportunity For Ipm, Nick Volesky, Mair Murray

Outcomes and Impact Quarterly

The mission of USU Extension’s Integrated Pest Management (IPM) program is to increase the use of sustainable pest management practices within urban and rural landscapes to provide economic, human, and environmental health in Utah. In the spring of 2022, the IPM program established a vegetable farm to test and demonstrate IPM practices. The farm served as an experiential learning classroom for almost 50 farmers and home gardeners.

Poisson Hurdle Model-Based Method For Clustering Microbiome Features, Zhili Qiao, Elle Barnes, Susannah Tringe, Daniel P. Schachtman, Peng Liu

Department of Agronomy and Horticulture: Faculty Publications

Motivation: High-throughput sequencing technologies have greatly facilitated microbiome research and have generated a large volume of microbiome data with the potential to answer key questions regarding microbiome assembly, structure and function. Cluster analysis aims to group features that behave similarly across treatments, and such grouping helps to highlight the functional relationships among features and may provide biological insights into microbiome networks. However, clustering microbiome data are challenging due to the sparsity and high dimensionality.

Results: We propose a model-based clustering method based on Poisson hurdle models for sparse microbiome count data. We describe an expectation–maximization algorithm and a …

A Glass Bead Semi-Hydroponic System For Intact Maize Root Exudate Analysis And Phenotyping, Martha G. Lopez-Guerrero, Peng Wang, Felicia Phares, Daniel P. Schachtman, Sophie Alvarez, Karin V. Van Dijk

Department of Agronomy and Horticulture: Faculty Publications

Background: Although there have been numerous studies describing plant growth systems for root exudate collection, a common limitation is that these systems require disruption of the plant root system to facilitate exudate collection. Here, we present a newly designed semi-hydroponic system that uses glass beads as solid support to simulate soil impedance, which combined with drip irrigation, facilitates growth of healthy maize plants, collection and analysis of root exudates, and phenotyping of the roots with minimal growth disturbance or root damage. Results: This system was used to collect root exudates from seven maize genotypes using water or 1 mM CaCl2, …

Germination And Early Seedling Growth Attributes Of Rice (Oryza Sativa L.) Cultivars Under Different Salinity (Nacl) Stresses [Research Note], Shahid Hussain, Shuli Liu, Rui Zhang, Yinglong Chen, Altaf Adil, Qigen Dai

The Philippine Agricultural Scientist

This study investigated the impact of different salinity stresses [0, 6.4, 12.8, 19.2, and 25.6 dS/m (NaCl)] on the final germination percentage, speed of germination, germination capacity, shoot and root length, seedling vigor index, and total plant dry weight of ten rice cultivars at germination and early seedling stages. Salinity stress significantly decreased the final germination percentage, speed of germination, germination capacity, shoot and root length, and seedling dry weight in all cultivars, with the most severe effects from level 19.2 and 25.6 dS/m NaCl. Rice cultivars were classified as tolerant, moderately tolerant, moderately susceptible, and susceptible based on reduction …

Determination Of Some Seed Characteristics Of False Flax (Camelina Sativa L. Crantz) Genotypes Grown Under Semi-Temperate Conditions, İlhan Subaşı, Yusuf Arslan, Tamer Eryigit, Vahdettin Çiftçi, Mahmut Çamlıca

The Philippine Agricultural Scientist

Camelina is an alternative low-input oil plant grown in marginal areas in Turkey. This study aimed to determine some quality characteristics of 39 camellia genotypes in ecological conditions in Bolu, Turkey. The field experiments were carried out in an augmented design with randomized blocks. In this work, some important properties such as thousand seed weight, oil content, fatty acid composition, and protein ratio were investigated. Results showed that mean data for thousand seed weight, oil ratio, and protein ratio were 0.63 – 1.5 g, 26.69 – 39.17%, and 21.81 – 29.81%, respectively. Considering the oil content of the genotypes used …

Evaluation Of Triticale Lines Compared To Wheat Cultivars In Terms Of Agronomic Traits Using Supervised Learning Methods And Multivariate Statistics, Sara Farokhzadeh, Hossein Shahsavand Hassani

The Philippine Agricultural Scientist

The first man-made cereal grain triticale merges the yield and quality potential of wheat with tolerance of rye against environmental stresses. To find the traits with the greatest impact on the superiority of triticale over wheat, four promising triticale lines and six bread wheat varieties were evaluated in a randomized complete block design (RCBD) with three replications in the field of the Agricultural Research Station of Shiraz University, Iran. Attribute weighting algorithms revealed main leaf width (MLW), grain number per spike (GN/S), spikelet number per spike (SN/S), 1000-grain weight (TGW), plant height (PHT), main leaf length (MLL), and grain yield …

Understanding The Influence Of Excessive Fertilization And Water Relations On Peach (Prunus Persica (L.) Batsch) Skin Bronzing, Sydney Lykins

All Theses

This project evaluated possible causes of peach skin bronzing, a brown-blotchy skin discoloration on mid to late-season peaches that causes drastic decreases to grower incomes in the Southeastern U.S. It is known that there is no bacterial, insectile, viral, or fungal cause of bronzing; thus, these studies focused on potential nutrient imbalances within the peach. On the ‘PF23’ variety, factors of irrigation, potassium fertilization, and transpiration-inhibiting sprays were tested to see the various effects on the incidence and severity of bronzing. The hypothesis was that excessive irrigation and excessive soil potassium concentrations would induce a higher incidence and severity of …

Nitrification Inhibitor, Nitrogen Source, And Herbicide Effects On Soil Nitrogen Transformations And Corn Yield, William Neels

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Nitrogen fertilizer management continue to be challenging due to potential nitrogen losses under variable weather conditions. The objective of this was to evaluate the performance of nitrification inhibitors, nitrogen sources and herbicides on in-season nitrogen availability and agronomy indicators. A two site-year field experiment was conducted in silty clay loam soil in corn phase of the corn-soybean rotation at Central Nebraska. The treatments included three herbicide (no pre-emergence, Acuron, Resicore) and five nitrogen treatments: 1) control, 2) anhydrous ammonia, 3) anhydrous ammonia without nitrification inhibitor, 4) urea with nitrification inhibitors, and 5) urea without nitrification inhibitors. Results indicated that nitrogen …

Addressing Challenges Of Dryland Production Of Sunflowers And Corn In The Semi-Arid High Plains Of Nebraska, Zhan Orazov

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Corn and sunflower are value crops for America. Cultivation of corn and sunflower often vary depending on growing environment. Selecting appropriate planting dates, hybrids and plant density frequently concerns farmers. This concern is understandable because the decision made directly impacts final income. The objectives were to evaluate interaction of corn and sunflower planting dates and hybrid maturity and evaluate interaction of corn flex hybrids and plant density under conditions of western Nebraska. Nine corn hybrids with relative maturity ranging from 86 to 105 days were sown between early May and late June in first and between late April and early …

Deciphering The Genetic Architecture Of Key Female Floral Traits For Hybrid Wheat Seed Production, Juan David Jimenez

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Wheat (Triticum aestivum L.) is a staple cereal that provides 20% of the calories and proteins in human intake (Ray et al., 2013). Global population is projected to increase to 9.7 billion by 2050. Food production must increase by 70% to feed this future population. Wheat production is in crisis due to political and environmental challenges and is projected to decline by 0.8% in 2022 (FAO, 2022). To ensure food security yield genetic gain must increase by around 1.4% annually. Taking advantage of heterosis, hybrid wheat has the potential to boost grain yield. However, hybrid wheat seed production systems …