A successful foundation seed farm

Abstract The experimental design was a RCB with 6 treatments and 4 replications. Plot size was 9 rows (7-inch spacing) by 20 ft. Each plot was bound by levees. Foundation seed rice was treated with fipronil 75 FS by Celpril Industries (Manteca, CA). Treated and untreated rice was drill seeded by Crowley silt loam at 90 lb/acre on 13 May and emerged between 24 and 28 May. Cool, rainy weather extended the emergence period and contributed to 5 to 15% stand reduction in plots. Propanil (Stam M4) and thiobencarb (Bolero 8 E) at 3 and 2 lb (AI)/acre, respectively, were applied for weed control on 12 Jun. Nitrogen was applied in a 3-way split of 90 lb N/acre as urea on 2 Jul and 30 lb N/acre on 23 and 31 Jul. Permanent flood was established on 27 Jun. Post-flood foliar treatments of Fury, Karate, and Dimilin were made with a CO2-pressurized backpack sprayer at 18 gpa. On 18 and 23 Jul three 4X4 inch (diam by depth) soil cores with an average of 3 plants/core were removed from plots. Soil was washed from the plant roots into a 40-mesh screen. The screen was immersed in salt water and RWW immatures were removed. Plots were harvested with a Yanmar combine on 7 Oct. Reported yields were adjusted to 12% moisture. Data were analyzed with an ANOVA and means separated with LSD.

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The Society of Thoracic Radiology Research and Education Foundation Seed Grant Guidelines and Submission Procedures

Journal of Thoracic Imaging ◽

10.1097/00005382-199810000-00001 ◽

1998 ◽

Vol 13 (4) ◽

pp. 219

Author(s):

Edward F. Patz

Keyword(s):

Foundation Seed ◽

Research And Education ◽

Radiology Research

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SWEETPOTATO STORAGE ROOT MUTATIONS

HortScience ◽

10.21273/hortsci.29.7.727b ◽

1994 ◽

Vol 29 (7) ◽

pp. 727b-727

Author(s):

R. C. Sloan ◽

P. G. Thompson ◽

W. B. Burdine ◽

J. L. Main ◽

P. D. Gerard

Keyword(s):

Fourth Generation ◽

Seed Plant ◽

Storage Root ◽

Storage Roots ◽

The Third ◽

Three Generations ◽

Foundation Seed

`Beauregard' storage roots which were discarded from the Mississippi sweetpotato foundation seed program because of the presence of flesh mutations were bedded in Spring 1991. After the plants were pulled from the roots, the roots were further examined, and the flesh mutations were characterized by size and frequency. The progency from the original roots were examined for flesh mutations for three generations in 1991, 1992, and 1993. The degree of mutation in the original root did not influence the degree of mutation in succeeding generations of storage roots. In 1992 and 1993, the degree of mutation in the third and fourth generation roots did not differ from that of storage roots grown from plants from the foundation seed plant beds.

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