2019 Oklahoma Peanut Variety Trials

Authors: Chamberlin, Kelly; DAMICONE, JOHN - OKLAHOMA STATE UNIVERSITY; Bennett, Rebecca

Submitted to: Peanut Research at Oklahoma State University
Publication Type: Experiment Station
Publication Acceptance Date: 2/15/2020
Publication Date: 3/1/2020
Citation: Chamberlin, K.D., Damicone, J.P., Bennett, R. 2020. 2019 Oklahoma Peanut Variety Trials. In: Partners and Progress - Peanut Research at OSU, 2019. Oklahoma Agricultural Experiment Station. P-1059, p. 2-14.

Interpretive Summary: Peanut production in Oklahoma is generally located in 3 geographical regions across the state: south western, west central and far west. Each region differs from the others in environmental and biological stressors that affect crop production, so the same peanut cultivar will likely perform differently in each growing region. Therefore, the Oklahoma Peanut Variety Trials are conducted in each region annually and are designed to test the performance of commonly grown cultivars and potential cultivar releases against each other. A record early hard-freeze in early October of 2019 pre-maturely halted crop development and greatly contributed to lower than average yields, grades, and overall quality of all trial entries. Data collected from trials in 2019 are not indicative of the average performance of trial entries. Excessive rainfall in October 2019 also led to delayed harvest of all trials and may have resulted in a drop in yield due to loss in the field as compared to past years. Results of these annual trials can serve as a guide for producers when choosing a cultivar to plant. Performance of runner varieties depended on location but averages across locations in 2019 indicate that cultivars Lariat and Tamrun OL11, along with advanced ARS breeding line ARSOK R47A, were the top entries in value per acre. Significant differences among spanish entries across locations and years indicate that the small-seeded runner-type cultivars AT98-99 and Span17 were the top yielders in 2019. The virginia cultivar ACI351 was the top yielder across locations in 2019, followed closely by cultivars Jupiter and Contender, as well as advanced breeding line NCEX17.

Technical Abstract: Peanut production in Oklahoma is generally located in 3 geographical regions across the state: south western, west central and far west. Each region differs from the others in environmental and biological stressors that affect crop production, so the same peanut cultivar will likely perform differently in each growing region. Therefore, the Oklahoma Peanut Variety Trials are conducted in each region annually and are designed to test the performance of commonly grown cultivars and potential cultivar releases against each other. A record early hard-freeze in early October of 2019 pre-maturely halted crop development and greatly contributed to lower than average yields, grades, and overall quality of all trial entries. Data collected from trials in 2019 are not indicative of the average performance of trial entries. Excessive rainfall in October 2019 also led to delayed harvest of all trials and may have resulted in a drop in yield due to loss in the field as compared to past years. Results of these annual trials can serve as a guide for producers when choosing a cultivar to plant. Performance of runner varieties depended on location but averages across locations in 2019 indicate that cultivars Lariat and Tamrun OL11, along with advanced ARS breeding line ARSOK R47A, were the top entries in value per acre. Significant differences among spanish entries across locations and years indicate that the small-seeded runner-type cultivars AT98-99 and Span17 were the top yielders in 2019. The virginia cultivar ACI351 was the top yielder across locations in 2019, followed closely by cultivars Jupiter and Contender, as well as advanced breeding line NCEX17.