Horticulture Commons^™

Guiding Principles For Using Satellite-Derived Maps In Rangeland Management, Brady W. Allred, Megan K. Creutzburg, John C. Carlson, Christopher J. Cole, Colin M. Dovichin, Michael C. Duniway, Matthew O. Jones, Jeremy D. Maestas, David E. Naugle, Travis W. Naumen, Gregory S. Okin, Matthew C. Reeves, Matthew Rigge, Shannon L. Savage, Dirac Twidwell, Daniel R. Uden, Bo Zhou

Department of Agronomy and Horticulture: Faculty Publications

No abstract provided.

Vision, Challenges And Opportunities For A Plant Cell Atlas, Plant Cell Atlas Consortium, Suryatapa Ghosh Jha, Marc Libault, David W. Ehrhardt, Seung Y. Rhee, 32 Other Scientists

Department of Agronomy and Horticulture: Faculty Publications

With growing populations and pressing environmental problems, future economies will be increasingly plant-based. Now is the time to reimagine plant science as a critical component of fundamental science, agriculture, environmental stewardship, energy, technology and healthcare. This effort requires a conceptual and technological framework to identify and map all cell types, and to comprehensively annotate the localization and organization of molecules at cellular and tissue levels. This framework, called the Plant Cell Atlas (PCA), will be critical for understanding and engineering plant development, physiology and environmental responses. A workshop was convened to discuss the purpose and utility of such an initiative, …

No-Till Pumpkin And Winter Squash After Winter Rye Cover Crop, Northern Indiana, 2020, Elizabeth Maynard

Midwest Vegetable Trial Reports

No-till planting of pumpkin into a killed winter rye cover crop is a system used by growers in a number of states, including Indiana. Advantages mentioned by producers in addition to soil health benefits from the cover crop include cleaner pumpkins at harvest, and in rainy seasons, less mud in the field making a more pleasant experience for customers who pick pumpkins right from the field. This paper reports on a project to develop a workable no-till system at a university research farm that can be used for demonstration and in future research to better understand and improve production practices. …

Watering The Landscape: Make It Easier With Evapotranspiration (Et), Candace Schaible, Kelly Kopp, Helen Muntz

All Current Publications

The American lawn is our nation’s single largest irrigated “crop” (Lindsey, 2005). In Utah, roughly 65% of our drinking water is applied to residential and commercial landscapes (Center for Water Efficient Landscaping, 2020). Landscapes are typically overwatered, which is why residential and commercial landscape watering is estimated to be one of the largest sources of potential water conservation in the urban setting (Endter-Wada et al., 2008). Plant materials also provide many environmental benefits, such as erosion control, water filtration, and temperature reduction. Knowing how much water to apply to the landscape can be a challenge and is one reason many …

Peningkatan Pertumbuhan Tunas Kunyit Putih Pada Perbanyakan In Vitro Melalui Aplikasi Berbagai Jenis Dan Konsentrasi Sitokinin, Murgayanti, Fatilla Nur Ramadhanti, Sumadi

Jurnal Kultivasi

Kunyit putih (Kaempferia rotunda L.) merupakan tanaman obat yang bermanfaat dan perlu dibudidayakan lebih luas, namun terkendala oleh penyediaan bibit bermutu yang terbatas sehingga menjadi langka. Perbanyakan tanaman dengan cara konvensional memerlukan bibit bermutu dalam jumlah dan waktu yang lama, sedangkan ketersediaan benih masih terbatas. Perbanyakan secara in vitro dapat mengatasi kelangkaan bibit kunyit putih yang bermutu tinggi dalam jumlah besar dan bebas patogen. Ketersediaan bibit unggul yang dihasilkan secara in vitro bergantung pada jenis dan konsentrasi sitokinin yang ditambahkan pada media kultur. Tujuan penelitian adalah untuk menentukan jenis dan konsentrasi sitokinin yang paling baik pengaruhnya terhadap pertumbuhan tunas kunyit …

Pertumbuhan Dan Hasil Benih Kentang G0 Kultivar Medians Pada Berbagai Komposisi Media Tanam Dan Interval Pemberian Air Di Dataran Medium, Jajang Sauman Hamdani, Sumadi, Kusumiyati, Haifa Ruwaidah

Jurnal Kultivasi

Benih merupakan kunci sukses budidaya kentang. Salah satu faktor yang mempengaruhi dan menjadi kendala produksi kentang di Indonesia adalah ketersediaan benih kentang yang memiliki kualitas dan kuantitas baik serta belum memenuhi kebutuhan permintaan benih petani kentang. Permasalahan produksi benih kentang generasi ke-0 (G0) adalah rendahnya jumlah ubi benih yang dihasilkan. Percobaan ini bertujuan untuk mengetahui interaksi antara komposisi media tanam dengan interval pemberian air terhadap produksi benih kentang G0 di dataran medium. Percobaan dilaksanakan di Kebun Percobaan, Fakultas Pertanian, Universitas Padjadjaran, Kampus Jatinangor. Rancangan percobaan yang digunakan yaitu Split Plot. Petak utama adalah komposisi media tanam yang terdiri dari campuran …

Perbedaan Karakter Hasil Tiga Varietas Ubi Jalar Berdasarkan Waktu Panen, Reza Prakoso Dwi Julianto, Edyson Indawan, Sukma Paramita

Jurnal Kultivasi

Ubi jalar (Ipomoea batatas L. (Lam)) merupakan jenis tanaman pangan yang mempunyai kandungan utama karbohidrat, selain itu juga mempunyai kandungan lain yang cukup tinggi seperti kalium, kalsium, protein, vitamin A, dan vitamin C. Masalah utama dalam pengembangan ubi jalar adalah rendahnya hasil dan kualitas hasil yang disebabkan oleh waktu panen yang tidak tepat. Pemanenan yang dilakukan secara tidak tepat akan menurunkan kuantitas dan kualitas hasil. Perbedaan waktu panen juga disebabkan perbedaan varietas tanaman. Tujuan penelitian ini adalah mengetahui waktu panen yang optimal dari masing-masing varietas ubi jalar agar mendapatkan produksi hasil yang optimal. Penelitian dilaksanakan pada bulan Maret – September …

Hormon Etilen Dan Auksin Serta Kaitannya Dalam Pembentukan Tomat Tahan Simpan Dan Tanpa Biji, Syariful Mubarok, Alin Robiah Al Adawiyah, Arin Rosmala, Fathi Rufaidah, Anne Nuraini, Erni Suminar

Jurnal Kultivasi

Tomat merupakan salah satu komoditas tanaman hortikultura penting di Indonesia. Seiring dengan perkembangan teknologi, sudah banyak dikembangkan varietas tomat baru yang mempunyai karakter-karakter yang diinginkan antara lain tahan akan penyakit, produktivitas tinggi tinggi, kandungan nutrisi tinggi dan lain-lain. Penerapan teknologi melalui pendekatan hormonal sangat penting untuk menghasilkan jenis tomat baru, diantaranya adalah hormone etilen dan auksin. Kedua hormone tersebut sangat berpengaruh terhadap pertumbuhan dan hasil tomat khususnya untuk menghasilkan tomat yang adaptif pada kondisi lingkungan tercekam dan ketahanan simpan buah yang tinggi. Teknologi mutasi pada kedua hormone tersebut sudah dapat menghasilkan tomat yang diinginkan diantaranya adalah tomat iaa9-3 yang merupakan …

Kompatibilitas Persilangan Interspesifik Pada Spesies Cabai, Iklillah Maulidiyah Warda, Budi Waluyo

Jurnal Kultivasi

Peningkatan produksi cabai (Capsicum sp.) dapat dilakukan dengan melakukan diversifikasi jenis baru dari hasil persilangan antar spesies. Tujuan penelitian ialah untuk mempelajari kompatibilitas pada penyerbukan sendiri dan penyerbukan silang buatan interspesies. Penelitian dilaksanakan pada Januari 2020 – Juni 2020. Bahan yang digunakan ialah 4 spesies cabai. Persilangan disusun berdasarkan rancangan perkawinan dialil lengkap. Terdapat 16 kombinasi persilangan. Perbedaan karakter kuantitatif penyerbukan sendiri dan silang diuji menggunakan uji t 5%. Penyerbukan sendiri pada setiap spesies memiliki kompatibilitas penuh dengan persentase pembentukan buah yaitu 100%. Persilangan antara C. annuum Cann(B)-CYM2-151-3 x C. baccatum Cbac-09(S), C. frutescens Cfru-03(4) x C. annuum Cann(B)-CYM2-151-3 dan …

Genome-Wide Association Mapping And Genomic Prediction Of Anther Extrusion In Cimmyt Hybrid Wheat Breeding Program Via Modeling Pedigree, Genomic Relationship, And Interaction With The Environment, Anil Adhikari, Bhoja Raj Basnet, Jose Crossa, Susanne Dreisigacker, Fatima Camarillo, Pradeep Kumar Bhati, Diego Jarquin, Yann Manes, Amir M.H. Ibrahim

Department of Agronomy and Horticulture: Faculty Publications

Anther extrusion (AE) is the most important male floral trait for hybrid wheat seed production. AE is a complex quantitative trait that is difficult to phenotype reliably in field experiments not only due to high genotype-by-environment effects but also due to the short expression window in the field condition. In this study, we conducted a genome-wide association scan (GWAS) and explored the possibility of applying genomic prediction (GP) for AE in the CIMMYT hybrid wheat breeding program. An elite set of male lines (n = 603) were phenotype for anther count (AC) and anther visual score (VS) across three field …

Development Of Mping-Based Activation Tags For Crop Insertional Mutagenesis, Alexander Johnson, Edward Mcassey, Stephanie Diaz, Jacob Reagin, Priscilla S. Redd, Daymond R. Parrilla, Hanh T. Nguyen, Adrian Stec, Lauren A.L. Mcdaniel, Thomas E. Clemente, Robert M. Stupar, Wayne A. Parrott, C Nathan Hancock

Department of Agronomy and Horticulture: Faculty Publications

Modern plant breeding increasingly relies on genomic information to guide crop improvement. Although some genes are characterized, additional tools are needed to effectively identify and characterize genes associated with crop traits. To address this need, the mPing element from rice was modified to serve as an activation tag to induce expression of nearby genes. Embedding promoter sequences in mPing resulted in a decrease in overall transposition rate; however, this effect was negated by using a hyperactive version of mPing called mmPing20. Transgenic soybean events carrying mPing-based activation tags and the appropriate transposase expression cassettes showed evidence of transposition. Expression analysis …

Comparative Performance Of Reduced-Risk Fungicides And Biorational Products In Management Of Postharvest Botrytis Blight On Bigleaf Hydrangea Cut Flowers, Ravi Bika, Cristi Palmer, Lisa Alexander, Fulya Baysal-Gurel

Agricultural and Environmental Sciences Faculty Research

Botrytis cinerea is one of the problematic and notorious postharvest pathogens of bigleaf hydrangea (Hydrangea macrophylla) cut flowers. It causes flower blight, leaf blight, and stem rot, reducing the ornamental value (such as longevity, color, and texture) of flowers, ultimately making them unsalable. The objective of this study was to identify effective conventional fungicides and biorational products for botrytis blight management on bigleaf hydrangea cut flowers that can be easily and readily adopted by growers of ornamentals. Preventive preharvest whole-plant spray and postharvest dip treatment applications were used in this study. For the whole-plant spray applications, bigleaf hydrangea …

Nebline, November/December 2020

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Nebraska Extension Celebrates 20 Years of School Enrichment Nutrition Kits!

Recipe of the Month

Fun Winter Gardening Projects

Garden Guide: Things to Do This Month

Be a Master Gardener!

Upcoming Green Industry Conferences

Helping Foster a Growth Mindset in Young Children

Pesticide Applicator Trainings

Landlord/Tenant Lease & Crop Budget Workshops

Extension News

4-H Announcements for enrolled 4-H'ers or 4-H volunteers

Heart of 4-H Volunteer Award: Jodi Gabel

Heart of 4-H Volunteer Award: Sarah Lanik-Frain and Mike Frain

2020 4-H Horse Awards

Extension Calendar

Outgoing 4-H Council Members

Youth Science Day for Homeschooled Youth

Ag Society Annual Election & Meeting

Super …

Genomic Selection Of Forage Agronomic Traits In Winter Wheat, Frank Maulana, Ki-Seung Kim, Joshua D. Anderson, Mark E. Sorrells, Twain J. Butler, Shuyu Liu, P. Stephen Baenziger, Patrick Byrne, Xue-Feng Ma

Department of Agronomy and Horticulture: Faculty Publications

Genomic selection (GS) can improve genetic gain of complex traits in plant breeding. Phenotyping agronomic traits of winter wheat (Triticum aestivum L.) for dualpurpose use is expensive and time-consuming. In this study, we compared the prediction accuracies of four GS models (RR-BLUP, GBLUP, GAUSS, and BL) for forage yield (FY), plant height (PH) and heading date (HD) of the hard winter wheat diversity panel (n = 298) using random and stratified sampling methods. In addition, we determined the appropriate training population (TP) size and marker density for GS of the traits. Moderate to high prediction accuracies ranging from 0.66 …

Estimation Of Additive And Dominance Effects Of A Mutant Glutathione S-Transferase Gene On Anthocyanin And Proanthocyanidin Content In Muscadine Grape (Vitis Rotundifolia), Autumn Brown

Horticulture Undergraduate Honors Theses

The skin color of muscadine grapes (Vitis rotundifolia) is typically classified as black or bronze. A glutathione S-transferase, VrunGST4, has been identified as a candidate gene for berry skin color in muscadine grapes. A molecular marker was developed within VrunGST4 to distinguish between muscadine genotypes (cultivars and selections) with bronze (T:T), heterozygote black (C:T), and homozygote black (C:C) berries. The objectives of this study were to determine whether there was a correlation between berry skin color and total anthocyanin content and to calculate additive and dominance effects of VrunGST4 in determining total anthocyanins in the berries and …

Influence Of Burning And Grazing Management Practices On Subirrigated Sandhill Meadow Hay Production, Tara M. Harms

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

Subirrigated meadows are a valuable forage resource to Sandhills ranching operations being used for hay production, grazing, or a combination of both. Practices that sustain meadow productivity should be encouraged to ensure a consistent feed supply for cattle. The potential influence of prescribed burning or pre-freeze and post-freeze grazing on forage production and quality are not well understood on these meadows. In grasslands, including meadows, excess dead plant material can accumulate, causing a potential reduction in forage yield and quality. Results of our three-year field study suggest that burning meadows in the spring is a suitable management option to remove …

Fungicide Resistance: Surveillance, Risk Assessment And Evolution In Two Soil-Borne Pathogens, Nikita Gambhir

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

Fungicide-resistant pathogens are an increasing threat to fungicide efficacy and plant health. The goal of this dissertation was to advance the foundational knowledge required to prevent and detect fungicide resistance development in the seedling disease pathogen, Rhizoctonia zeae and the white-mold pathogen, Sclerotinia sclerotiorum. Corn and soybean fields in 12 states (Iowa, Illinois, Indiana, Kansas, Kentucky, Michigan, Minnesota, Missouri, North Dakota, Nebraska, South Dakota, and Wisconsin) were surveyed for R. zeae. In vitro fungicide sensitivity was determined for 91 isolates to fludioxonil, sedaxane, and/or prothioconazole. Rhizoctonia zeae was sensitive to all fungicides (EC₅₀ < 3 µg/ml) except azoxystrobin (EC₅₀ > 100 µg/ml). In …

Comparison Of A T-Trellis And A Rotating Cross-Arm Trellis For Arkansas Blackberry Production, Erika Henderson

Graduate Theses and Dissertations

As blackberry production in the southeastern United States expands, the need for updated cultural practices, like alternative trellis systems that enhance blackberry fruit yield, fruit quality, and economic viability for fresh-market growers are needed. There are challenges to producing high-quality blackberry fruit with high yields in the Southeast due to intense heat, high rainfall, humidity, and heavy pest pressure. Southeastern growers are interested in the rotating cross-arm (RCA) trellis due to its potential to increase yield and fruit quality, however there is minimal research of its use in blackberry production in the Southeast. In 2019 and 2020, a trial was …

Reducing Mowing Requirements In Home Lawn And Golf Course Turfgrass, Mark A. Keck

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

Turfgrass systems are routinely managed by frequent mowing to increase aesthetics and function. Mowing is resource intensive with a high labor and energy demand. Reducing the number of mowings events in a growing season will decrease the labor and energy but may reduce quality as well. Previous work has looked at reducing mowing by changing the frequency and by using a plant growth regulator (PGR). Limited information is available about how to reduce mowing while maintaining acceptable quality. We looked at two different management practices to reduce mowing and maintain quality. The first study evaluated seven different mowing frequencies at …

Evaluating The Impact Of Grafting On Local Tomato Production In Nebraska, Raihanah Hassim

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

Vegetable grafting has been known to improve plant production under both biotic and abiotic stresses. With an increase in interest among local growers towards grafting production, it is important to provide enough vegetable grafting information. Therefore, the objective of this study is to assess the impact of grafting, rootstock cultivar, and local conditions and management on the yield and quality of tomato across the diverse growing and environmental conditions, specifically in Nebraska. Three open-field and one limited growing condition study were conducted between 2018 and 2019 across Nebraska. In the open-field trial, two determinant fresh market tomatoes, ‘Nebraska Wedding’ and …