scholarly journals Performance of Sweetpotato Foundation Seed after Incorporation into Commercial Operations in Louisiana

2010 ◽  
Vol 20 (6) ◽  
pp. 977-982 ◽  
Author(s):  
Christopher A. Clark ◽  
Tara P. Smith ◽  
Donald M. Ferrin ◽  
Arthur Q. Villordon

Because sweetpotato (Ipomoea batatas) is vegetatively propagated, viruses and mutations can accumulate readily, which can lead to cultivar decline. Sweetpotato foundation seed programs in the United States maintain the integrity of commercial seed stock by providing virus-tested (VT) foundation seed to commercial producers. A survey was conducted in Louisiana from 2007 to 2009 to examine the performance and quality of the foundation seed after it had been integrated into commercial sweetpotato operations. G1 seed [grown 1 year after virus therapy in the foundation seed production field at the Sweet Potato Research Station, Louisiana State University Agricultural Center (LSU AgCenter), at Chase, LA] was used as a reference to compare the yield and virus incidence of growers' generation 2 (G2) and generation 3 (G3) seed roots (grown in the growers' seed production fields 1 or 2 years following the year of foundation seed production). Although yields of plants grown from G2 and G3 seed were 86.3% and 86.1% for U.S. No. 1 and 83.3% and 86.0% for total marketable, respectively, compared with the yields from G1 seed, they were not significantly different. Yield and virus incidence data suggest that seed quality may vary from year to year and from location to location. Results from this study suggest that producers are realizing yield benefits by incorporating VT foundation seed into their production schemes, but further benefits could be attained if ways to reduce re-infection with viruses can be found.

2020 ◽  
Vol 21 (2) ◽  
pp. 131-132
Author(s):  
Andrew Maas ◽  
Kaylan Deshpande ◽  
Kyle E. Friesen ◽  
Jay Yates

This article provides a brief summary of the discussion, presentation, and knowledge shared during the Eight Annual Meeting of the National Academy of Inventors held in Houston, Texas, in April 2019. The panel, "The Intersection of University Inventions and Recent Cases at the Patent Trial and Appeal Board (PTAB)," focused on university inventions and the PTAB, with perspectives from a university technology transfer office, a PTAB administrative patent judge, and attorneys practicing before the United States Patent and Trademark Office (USPTO) and in Federal District Court. The panel was led by Andrew Maas of Louisiana State University and included Kalyan Deshpande of the USPTO; Kyle Friesen of Shook, Hardy & Bacon; and Jay Yates of Patterson + Sheridan. The panel busted myths and provided helpful information and perspective on the PTAB.


2012 ◽  
Vol 26 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Rakesh K. Godara ◽  
Billy J. Williams ◽  
Eric P. Webster ◽  
James L. Griffin ◽  
Donnie K. Miller

Field experiments were conducted in 2006, 2007, and 2008 at the Louisiana State University Agricultural Center's Northeast Research Station near St. Joseph, LA, to evaluate imazosulfuron programs involving rate, application timings, and tank mixes for PRE and POST broadleaf weed control in drill-seeded rice. Imazosulfuron showed residual activity against both Texasweed and hemp sesbania. PRE-applied imazosulfuron at 168 g ai ha−1and higher rates provided 83 to 93% Texasweed control at 4 WAP. At 12 WAP, Texasweed control with 168 g ha−1and higher rates was 92%. Hemp sesbania control with 168 g ha−1and higher rates was 86 to 89% at 4 WAP and 65 to 86% at 12 WAP. Imazosulfuron at 224 g ha−1applied EPOST provided 84 to 93% Texasweed control and 82 to 87% hemp sesbania control, and it was as effective as its tank mixture with bispyribac-sodium. When applied LPOST, four- to five-leaf Texasweed, imazosulfuron alone at 224 g ha−1was not effective against Texasweed and hemp sesbania, but did improve weed control when mixed with bispyribac-sodium at 17.6 g ai ha−1.


1942 ◽  
Vol 2 (1) ◽  
pp. 37-39
Author(s):  
Charles Loomis

The decision of the State Department to employ three outstanding rural sociologists to make sociological and anthropological studies in three leading Latin American countries, Argentina, Brazil and Mexico was based in no small measure upon the reputation of the rural sociologists in the applied field. A year ago last February Professor T. Lynn Smith, Head of the Department of Sociology at Louisiana State University, was sent to Brazil; in May, Dr. Carl C. Taylor, Head of the Division of Farm Population and Rural Welfare in the United States Department of Agriculture, left for Argentina; and in June, Professor Nathan Whetten, Dean of the Graduate School at Connecticut University left for Mexico. The State Department, which is furnishing these rural sociologists funds to conduct the investigations in the respective countries, and the Office of Foreign Agricultural Relations in the USDA, which cooperates in the direction of the studies, have permitted each of these men wide latitude within which to work.


HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1044D-1044
Author(s):  
D.H. Picha

A course entitled “Plantation, Beverage, and Tropical Nut Crops” was developed in order to expand the content and diversity of the horticulture curriculum at Louisiana State University. The course was designed for both upper division undergraduates and graduate students in the plant sciences. The course was intended to broaden the exposure of both domestic and international students to the world's most important plantation, beverage, and tropical nut crops. These crops are generally not commercially grown in the United States, but include some of the world's most economically significant commodities. The selected crops are typically not covered in existing horticulture or agronomy classes. Details of the individual crop cultural practices, harvesting methods, postharvest care, agro-processing, and international marketing are provided. The instructional materials were formatted for delivery via compressed video and transmitted to off-campus sites to afford the opportunity of long-distance learning to nontraditional students. The course was successful in attracting nonhorticulture students and facilitated interdisciplinary interaction among students from diverse curricula.


HortScience ◽  
2008 ◽  
Vol 43 (6) ◽  
pp. 1911-1914 ◽  
Author(s):  
G. Craig Yencho ◽  
Kenneth V. Pecota ◽  
Jonathan R. Schultheis ◽  
Zvezdana-Pesic VanEsbroeck ◽  
Gerald J. Holmes ◽  
...  

‘Covington’ is an orange-fleshed, smooth-skinned, rose-colored, table-stock sweetpotato [Ipomoea batatas (L.) Lam.] developed by North Carolina State University (NCSU). ‘Covington’, named after the late Henry M. Covington, an esteemed sweetpotato scientist at North Carolina State, was evaluated as NC98-608 in multiple state and regional yield trials during 2001 to 2006. ‘Covington’ produces yields equal to ‘Beauregard’, a dominant sweetpotato variety produced in the United States, but it is typically 5 to 10 days later in maturity. ‘Covington’ typically sizes its storage roots more evenly than ‘Beauregard’ resulting in fewer jumbo class roots and a higher percentage of number one roots. Total yields are similar for the two clones with the dry matter content of ‘Covington’ storage roots typically being 1 to 2 points higher than that of ‘Beauregard’. ‘Covington’ is resistant to fusarium wilt [Fusarium oxysporum Schlect. f.sp. batatas (Wollenw.) Snyd. & Hans.], southern root-knot nematode [Meloidogyne incognita (Kofoid & White 1919) Chitwood 1949 race 3], and moderately resistant to streptomyces soil rot [Streptomyces ipomoeae (Person & W.J. Martin) Wakswan & Henrici]. Symptoms of the russet crack strain of Sweet Potato Feathery Mottle Virus have not been observed in ‘Covington’. The flavor of the baked storage roots of ‘Covington’ has been rated as very good by standardized and informal taste panels and typically scores as well or better in this regard when compared with ‘Beauregard’.


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