Life Sciences Commons^™

2022 Seedless Pickling Cucumber Cultivar Trial, Ben Phillips, Jenny Schoonmaker

Midwest Vegetable Trial Reports

A pickling cucumber cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.088261, -86.351980, Benton Harbor, Michigan). Bejo (BJ), Nunhems (NU), and Rijk Zwaan (RZ) seed companies donated parthenocarpic (seedless) cultivars for mechanical once-over harvest. Overall trial quality was marginal due to being the first trial on a new research farm with different equipment parameters, task procedures, and responsibilities. Factors affecting trial quality were logged for next year’s trial, and include machine planting, incorporating the entire nitrogen recommendation ahead of planting, and adjusting final plant population to 30 inch row spacings.

2022 Bell Pepper Cultivar Trial, Ben Phillips, Jenny Schoonmaker

Midwest Vegetable Trial Reports

A bell pepper cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). Enza Zaden (EZ), HM Clause (HM), PanAmerican (PA), Seminis (SE), and Sakata (SK) seed companies donated bell pepper cultivars for plastic-mulch bedded and trellised hand harvest. Overall trial quality was excellent, however environmental conditions increased the numbers of choppers during the 2nd and 3rd pickings. In the future, we will not pick small fruit because there is no market for them.

2022 Specialty Pepper Cultivar Trial, Ben Phillips, Jenny Schoonmaker

Midwest Vegetable Trial Reports

A specialty pepper cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). Bejo (BJ), Johnny’s Seeds (JO), Seminis (SE), Tozer (TZ), and US Agriseeds (UA) seed companies donated six jalapeno cultivars, nine lunchbox cultivars, and two tapered 5-inch cultivars for plastic-mulch bedded and trellised hand harvest. Trial quality was excellent.

2022 Summer Squash Cultivar Trial, Ben Phillips, Jenny Schoonmaker

Midwest Vegetable Trial Reports

A summer squash cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). HM Clause (HM), PanAmerican (PA), Rupp (RP), Sakata (SK), and US Agriseeds (UA) seed companies donated four zucchini cultivars, three patty pan cultivars, and one yellow summer squash cultivar for plastic-mulch bedded hand harvest. Trial quality was excellent.

Optimization Of Extraction Process And Activity Study Of Antimicrobial Peptides From Pleurotus Tuber-Regium Mycelium, Zhang Shu-Hui, Luo Lu, Sun Xue-Yan, Ma Ai-Min

Food and Machinery

Objective: To improve the yield and antibacterial rate of antimicrobial peptides from Pleurotus tuber-regium mycelium (PTRM-AMPs). Methods: Taking the yield and the antibacterial rate of PTRM-AMPs against Staphylococcus aureus and Esche-richia coli as evaluation indexes, on the basis of protease screening, the extraction process of PTRM-AMPs was optimized, and the minimum inhibitory concentration of PTRM-AMPs was determined. Results: The optimum technological conditions for the preparation of PTRM-AMPs by alkaline protease hydrolysis were as follows: the enzymatic hydrolysis temperature was 39.5 ℃, the enzymatic hydrolysis time was 3.2 h, the pH value was 11.1, the solid-liquid ratio was …

Arkansas Wheat Performance Tests 2021-2022, J. F. Carlin, R. B. Morgan, R. D. Bond, D. E. Moon

Arkansas Agricultural Experiment Station Research Series

Wheat variety performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station, Department of Crop, Soil, and Environmental Sciences. The tests provide information to companies developing varieties and marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for small-grain producers. The tests are conducted at the Northeast Research and Extension Center at Keiser, the Vegetable Substation near Kibler, the Lon Mann Cotton Research Station near Marianna, the Pine Tree Research Station near Colt, and the Rohwer Research Station near Rohwer. Specific location …

Dicamba Tank Mixtures And Formulations And Their Effects On Sensitive Crops During Cleanout Procedures, Vinicius Velho

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

The introduction of dicamba-tolerant (DT) soybeans (Glycine max L. Merr) and cotton (Gossypium hirsutum L) in 2017 provided an additional tool for herbicide resistant weeds management. In the subsequent years, off-target movement of dicamba allegedly caused damage to sensitive crops and vegetation.

Possible causes of off-target movement include tank contamination, physical drift, and volatility. Additional products, such as herbicides to control grass, are often added to tank with dicamba, which is used to control broadleaf weeds, to increase the spectrum of control and application efficiency. Dicamba products registered for DT crops require the use of drift reducing …

2022 Standard-Sized Triploid Watermelon Cultivar Evaluation In Indiana, Wenjing Guan, Dean Haseman, Dennis Nowaskie, Dan Egel

Midwest Vegetable Trial Reports

A total of 6,600 acres of watermelons were planted in southern Indiana in 2021, making Indiana the sixth largest watermelon production state in the US, following Florida, Texas, Georgia, California, and North Carolina (USDA, 2022). Farmers select cultivars based on yield, disease resistance and fruit quality. This annual watermelon cultivar evaluation trial aims to provide watermelon producers and seed companies with information on the performances of different watermelon cultivars in southern Indiana.

Prunus Microcarpa: A Potential Rootstock For Apricots, Remzi̇ Uğur

Turkish Journal of Agriculture and Forestry

One of the most important developments in the history of fruit growing is the discovery and use of dwarf rootstocks. Today, dwarf rootstock studies continue in different fruit species including apricot. The main goal of this study was to identify new dwarfing rootstocks for apricots that limit apricot tree height and size, without altering scion production or fruit characteristics. In this study, `Hacıhaliloğlu', `Hasanbey', `Kabaaşı', and `Roxana' apricot cultivars grafted on Prunus microcarpa - a potential rootstock for apricot - were investigated. Phenological, morphological, yield, and quality traits of apricot (Prunus armeniaca L.) cultivars grafted on Prunus microcarpa seedlings and …

Yield And Oil Composition Of Peppermint Cultivars Grown In The Isparta Climate Of Turkey, Kemal Yilmaz, İsa Telci̇

Turkish Journal of Agriculture and Forestry

Peppermint, Mentha piperita L. belonging to the Lamiaceae family, contains a valuable essential oil known for its high menthol and menthone content. During the vegetation seasons of 2016 and 2017, field studies were conducted in Turkey?s Isparta climate by using randomized blocks to examine the yield and oil composition of the new peppermint cultivars. In these studies, Multimentha produced the highest herb yield even though the quality of its essential oil is relatively poor due to its low menthol content. Yield levels of other cultivars were similar to each other with the same statistical group. In the study, Citaro, Tokat …

Application Of Potassium, Zinc And Boron As Potential Plant Growth Modulators In Gossypium Hirsutum L. Under Heat Stress, Muhammad Sarwar, M Farrukh Saleem, Basharat Ali, Muhammad Hamzah Saleem, Muhammad Rizwan, Kamal Usman, Ali El Keblawy, Asjad Ali, Muhammad Afzal, Mohamed S. Sheteiwy, Shafaqat Ali

Turkish Journal of Agriculture and Forestry

High temperature stress at reproductive stages of cotton crop severely affects the yield and quality of cotton crop under changing climatic conditions. To alleviate the adverse effects of high temperature stress on cotton crop, the regulatory effects of potassium (K), zinc (Zn), and boron (B) were assessed by applying different temperature regimes at three reproductive stages of cotton crop under field and glass house conditions. Cotton plants were subjected to low (32/20 °C ± 2), medium (38/24 °C ± 2), and high (45/30 °C ± 2) temperatures under glasshouse, but sown at specific dates in field to provide different temperatures …

Field Validation Of A Farmer Supplied Data Approach To Close Soybean Yield Gaps In The Us North Central Region, José F. Andrade, Spyridon Mourtzinis, Juan I. Rattalino Edreira, Shawn P. Conley, John Gaska, Herman J. Kandel, Laura E. Lindsey, Seth Naeve, Scott Nelson, Maninder P. Singhi, Laura J. Thompson, James E. Specht, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

CONTEXT: Producer-reported data can be used to identify suites of management practices that lead to higher yield and profit. However, a rigorous validation of the approach in relation to its potential impact on farmer yield and profit is lacking.

OBJECTIVE: This study aimed to validate a producer-data approach on its capability to guide on-farm evaluation of management practices with greatest potential for increasing producer yield and profit. We show proof of concept using soybean in the North Central US region as a case study.

METHODS: We used a combination of regression tree analysis and a spatial framework to determine practices …

2022 Personal-Sized Triploid Watermelon Cultivar Evaluation In Indiana, Wenjing Guan, Dean Haseman, Dennis Nowaskie, Dan Egel

Midwest Vegetable Trial Reports

Personal-sized (mini) watermelons refer to fruit weighing 4.4 to 8.8 lb (Vinson et al., 2010), with 6-7 lb considered the ideal size. Both seeded and seedless personal-sized cultivars are commercially available. In the annual cultivar trial, we evaluate the performance of personal-sized triploid watermelons in southern Indiana.