scholarly journals Thrips Control in Cotton with In-Furrow Insecticides in Northeast Arkansas, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 218-218
Author(s):  
Glenn Studebaker
Keyword(s):  
University Of Arkansas ◽  
Severe Damage ◽  
The University ◽  
Extension Center

Abstract ‘Plots of DES 119’ cotton were planted on 20 May at the University of Arkansas Northeast Research and Extension Center. Granular compounds were applied by Gandy box on the planter. In-furrow liquids were applied with a CO2 powered system mounted on the planter directing sprays into the furrow. The sprayer was calibrated to deliver 5.5 gal/acre at 42 psi through 8002 flat fan nozzles. Plots were four 38-inch rows, 50-ft long, arranged in a RCBD with 4 replications. Damage ratings were made based on a scale of 1-10 with 10 = severe damage. Thrips counts were made by collecting 5 plants from each plot and washing the plants through a series of sieves, counting the thrips collected in the final sieve. Yields were taken by harvesting the center two rows of each plot.

scholarly journals FOLIAR DAMAGE OF BLACKBERRIES AND BLUEBERRIES BY JAPANESE BEETLE (Popillia japonica)

HortScience ◽  
2005 ◽  
Vol 40 (3) ◽  
pp. 879b-879
Author(s):  
Eric T. Stafne ◽  
John R. Clark ◽  
Donn T. Johnson ◽  
Barbara A. Lewis
Keyword(s):  
Urban Areas ◽  
Agricultural Research ◽  
Popillia Japonica ◽  
University Of Arkansas ◽  
Japanese Beetle ◽  
Significant Damage ◽  
Northwest Arkansas ◽  
Experimental Trials ◽  
The University ◽  
Extension Center

Since 1997, populations of Japanese beetle have settled into some of the major urban areas of Arkansas, especially Little Rock and Northwest Arkansas, due to transported turf and nursery material. Experimental trials at the University of Arkansas Agricultural Research and Extension Center, Fayetteville have sustained significant damage due to the increasing Japanese beetle population. Plantings of blackberries and blueberries were rated for feeding damage. Significant differences were observed among genotypes of both crops. Mean damage ratings varied from 0.6 to 4.0 for the blackberries and 1.2 to 3.5 for the blueberries. As evidenced by the mean damage ratings, some resistance or tolerance is present within these populations and may be exploited for improvement.

scholarly journals EFFECTS OF POSTHARVEST STORAGE AND GENOTYPE ON QUALITY AND SHELF LIFE OF FRESH SOUTHERNPEAS [VIGNA UNGUICULATA (L.) WALP.]

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 516D-517
Author(s):  
Justin Butcher ◽  
Teddy Morelock
Keyword(s):  
Shelf Life ◽  
Block Design ◽  
Ambient Air ◽  
Hot Water ◽  
University Of Arkansas ◽  
Environmental Condition ◽  
Postharvest Storage ◽  
Randomized Block Design ◽  
The University ◽  
Extension Center

Postharvest storage of southernpeas is crucial in the production process. Governed by consumer demands, farmers strive for a product that is high in quality and freshness, and has an appropriate texture and appealing color. Improper storage of southernpeas results in their premature deterioration, lack of acceptance, and possible loss of profit. Therefore, an appropriate storage facility and temperature should be devised that will benefit both farmer and consumer. In an effort to prevent potential losses of southernpeas, a study was conducted to determine the best environmental condition at which to store and to potentially extend shelf life. In 2004, two experiments were conducted on the University of Arkansas Agriculture Research and Extension Center, Fayetteville, Ark., to determine the best genotype and storage environmental condition to maintain a quality marketable prod-uct. In the first experiment, a screening of 23 southernpea genotypes was conducted from single plots to determine which genotypes could maintain their appearance the longest in a refrigerated environment. In the second experiment, two separate plantings were made of five southernpea genotypes in a randomized block design in two separate fields. Upon maturity, 12 mature green pods of each genotype were subjected to a sweated and unsweated treatment. After shelling, seeds were subjected to one of three different environmental conditions: cool regime, room temperature, and ambient air, evaluating each on the basis of changes in physical appearance; a hot water dip treatment was also examined. A refrigerated environment at or near 37 to 41 °F was the best environment to store southernpeas for nearly 2 weeks. The sweated treatment also aided in the shelling process and appeared to maintain the appearance of each genotype longer.

Rice yield and quality as affected by cultivar and red rice (Oryza sativa) density

Weed Science ◽  
2005 ◽  
Vol 53 (4) ◽  
pp. 499-504 ◽  
Author(s):  
Brian V. Ottis ◽  
Kenneth L. Smith ◽  
Robert C. Scott ◽  
Ronald E. Talbert
Keyword(s):  
Rice Yield ◽  
Field Studies ◽  
Rice Cultivars ◽  
University Of Arkansas ◽  
Red Rice ◽  
Cultivated Rice ◽  
Yield And Quality ◽  
The University ◽  
Extension Center

Previous research has examined the extent to which red rice affects both yield and grain quality of cultivated rice. However, this research was conducted over 15 yr ago. Modern long-grain rice cultivars have the potential to produce yields above 10,000 kg ha−1; however, it is unknown whether modern rice cultivars sacrifice competitiveness to achieve higher yields, or if, in fact, they are more competitive. Field studies were conducted in 2002 and 2003 at the Southeast Research and Extension Center near Rohwer, AR, and at the University of Arkansas Pine Bluff Research Farm near Lonoke, AR, to investigate the effect of red rice density on interference between red rice and five rice cultivars (‘CL161’, ‘Cocodrie’, ‘LaGrue’, ‘Lemont’, and ‘XL8’). White rice yield reductions were between 100 and 755 kg ha−1for every red rice plant m−2. The hybrid rice, XL8, had higher yields than the conventional cultivars. Red rice contamination in milling samples increased linearly as a function of red rice density at Lonoke and Rohwer in 2003. Dockage for each cultivar was calculated on the basis of the relationship between red rice density and red rice contamination. Semidwarf Lemont was the most contaminated and hybrid XL8 the least contaminated by the various densities of red rice.

scholarly journals A Better Learning Community: Mixed-Methods Reveal Medical Student Preferences with Implications for Learning Community Design and Implementation

2021 ◽  
Vol 8 ◽  
pp. 238212052110148
Author(s):  
Jasna Vuk ◽  
Steven McKee ◽  
Sara Tariq ◽  
Priya Mendiratta
Keyword(s):  
Mixed Methods ◽  
Learning Community ◽  
Online Survey ◽  
Free Form ◽  
University Of Arkansas ◽  
Medical Sciences ◽  
Face To Face ◽  
Personal Support ◽  
School Learning ◽  
The University

Background: Medical school learning communities benefit students. The College of Medicine (COM) at the University of Arkansas for Medical Sciences (UAMS) provides medical students with academic, professional, and personal support through a learning community (LC) made of 7 academic houses. Objectives: To evaluate the effectiveness of the academic house model at UAMS utilizing a mixed-methods survey. The aims were to: (1) assess student experience and satisfaction with academic houses, (2) describe the realms of advising and guidance, and (3) identify areas for improvement. Method: An online survey was assigned to 723 COM students (all students enrolled, first through fourth years) at UAMS in March 2019. The survey was comprised of 25 items (10 multiple-choice, 8 on the Likert scale, and 7 open-ended questions). Data was depicted using frequency and percentages and/or thematic review of free-form responses. Results: The survey response rate was 31% (227 students). The majority of students responding (132, 58.1%) attended 2 or more face-to-face meetings with the faculty advisor within the preceding year. However, 27 (11.9%) students did not have any meetings. Approximately two-thirds of the respondents were satisfied or very satisfied with the guidance and direction provided by their advisors [very satisfied (n = 83; 36.6%); satisfied (n = 77; 33.9%)]. Themes that emerged from student generated areas for improvement include time constraints, advisor/advisee interest mismatch, and perceived inadequacy of advising content/connections. Conclusions: This study confirms the effectiveness of the LC model for advising and mentoring in the COM at UAMS. Uniquely, this study identifies not only learners’ satisfaction with their LC but also highlights areas for improvement which are widely generalizable and important to consider for institutions with or planning to start an LC.

scholarly journals Effects of Syngenta Enogen Feed Corn containing an α-amylase trait on finishing cattle performance and carcass characteristics1

2018 ◽  
Vol 3 (1) ◽  
pp. 504-512 ◽  
Author(s):  
M L Jolly-Breithaupt ◽  
M E Harris ◽  
B L Nuttelman ◽  
D B Burken ◽  
J C MacDonald ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Feedlot Performance ◽  
Finishing Cattle ◽  
Main Effect ◽  
University Of Nebraska Lincoln ◽  
The University ◽  
Extension Center ◽  
Enzyme Supplement ◽  
Corn Hybrid

Abstract Two experiments evaluated the effects of feeding a new corn hybrid, containing an α-amylase enzyme trait, Syngenta Enogen Feed Corn (SYT-EFC), on feedlot performance and carcass characteristics at two locations. Experiment 1 utilized 300 calffed steers (298.5 ± 16.3 kg of BW) at the University of Nebraska–Lincoln Eastern Nebraska Research and Extension Center Mead, NE. Treatments were designed as a 2 × 2 + 1–factorial arrangement with factors consisting of 1) corn type (SYT-EFC or conventional [CON]) and 2) byproduct type (with or without Sweet Bran [SB]), or a BLEND of STY-EFC and CON without SB. In Exp. 2, 240 crossbred, calf-fed steers (287.6 ± 15.4 kg of BW) were utilized at the University of Nebraska–Lincoln Panhandle Research and Extension Center near Scottsbluff, NE. Steers were fed SYT-EFC, CON, BLEND, or CON with a commercial α-amylase enzyme supplement (CON-E). In Exp. 1, there was an interaction for ADG (P = 0.05) and G:F (P = 0.02). Steers fed SYT-EFC with SB had greater ADG and G:F than CON; however, in diets without SB, SYT-EFC and CON were not different resulting in a 10.1% change in G:F when steers were fed SYT-EFC in SB compared with CON and only 1.6% change between SYT-EFC and CON without SB. Energy values, based on performance data, resulted in a 6.5% and 8.3% change in NEm and NEg, respectively, for steers fed SYT-EFC and CON with SB and 1.6% change for both NEm and NEg for steers fed SYT-EFC and CON without SB. For the main effect of corn trait, steers fed SYT-EFC had greater marbling scores, fat depth, and calculated yield grade compared with CON (P ≤ 0.03). In diets without SB, there was no difference between SYT-EFC, CON, or BLEND for DMI, final BW, ADG, G:F, NEm, or NEg (P ≥ 0.35). In Exp. 2, cattle fed SYT-EFC, BLEND, or CON-E had greater final BW, ADG, and G:F than cattle fed CON (P ≤ 0.03). On average, NEm and NEg were 4.9% and 7.0% greater, respectively, for steers fed amylase enzyme treatments compared with CON (P ≤ 0.01). Hot carcass weights were greater in steers fed α-amylase treatments compared with CON (P < 0.01). Feeding Syngenta Enogen Feed Corn, which contains an α-amylase enzyme trait, at both locations improved feed efficiency in finishing cattle diets containing WDGS or SB.

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