Proceedings of the South Dakota Academy of Science, Volume - 69, Year - 1990

TABLE OF CONTENTS  

AUTHOR NAME  

PAGE

Minutes of the Seventy-fifth Annual Meeting of the South Dakota Academy of Science  

5

Elected Officials  

7

Junior Academy Report  

7

Roster of Past Presidents  

9

Report of the Resolutions Committee  

11

Report of the Membership Committee  

12

Report of the Auditing Committee  

13

Treasurer's Report  

13

Membership Lists  

14

Memorial Statement  

18

Presidential Address: We Did Start the Fire.  

Samuel Gingerich  

19

Diamond Jubilee Address: Back from the Future.  

Norman E. Miller  

29

Senior Research Papers Presented at the Seventy-fifth Annual Meeting of the South Dakota Academy of Science:

Soybean Production when Co-Planted with Rye.  

Frank Einhellig and Arvid Boe  

39

Forage Yield and Quality of Spring Oats and a Spring Triticale.  

E. K. Twidwell, N. J. Thiex, and R. G. Hall  

 45

Seedling Growth Response in Oat to Inoculation with Barley Yellow Dwarf Virus.  

O. M. Kafawin, J. L. Gellner, R. W. Kieckhefer, and D. L. Reeves  

51

Response of Barley Plants to Drought Stress: Genotypic Variation in Leaf Area, Water Potential, and Glycinebetaine Accumulation.  

Walter E. Riedell  

61

Extraction and Insecticidal Studies of Fluorescent Lipophilic Substances from Echinacea purpurea Inflorescences.  

Sharon Many Lightnings, Gerald A. Myers, Walter E. Riedell, and David J. Hurley  

69

Electrode Determination of Extractable Sodium in South Dakota Soils.  

E. M. White  

75

Drought in Western South Dakota as Revealed by Tree-Rings.  

Arthur T. DeGaetano and James R. Miller, Jr  

 81

Transmission of Trichomonas gallinae to Ring Doves (Streptopelia risoria).  

Glenn E. Kietzmann, Jr  

95

Population Differences and Thermal Acclimation in Temperature Responses of Developing Sea Urchin Embryos.  

Leland G. Johnson, James E. Chenoweth, and Brian L. Bingham  

99

Evaluation of an Evaporation Pond for Rearing Fingerling Walleyes (Stizostedion vilreum vitreum).  

Charles R. Berry, Jr. and Louis N. Berg  

109

Evaluation of a 380-mm Minimum Length Limit for Largemouth Bass in Lake Alvin, South Dakota.  

John P. Lindgren and David W. Willis  

121

Ground-Water Recharge at Mount Rushmore.  

Perry H. Rahn  

129

Earthquake Potential in South Dakota.  

W. M. Roggenthen  

139

Stable Carbon Isotope Ratios of Miocene Sediments and Fossil Cellis (Ulmaceae) and Berriochloa (Gramineae) Reproductive Structures from the Northern Great Plains.  

Jacob Haffner, Mark L. Gabel, and Larry L. Tieszen  

145

Cladodont Shark Teeth from the Late Devonian - Early Mississippian Englewood Formation of the Black Hills, South Dakota.  

Mark D. Fahrenbach  

153

Polynomials with Coefficients in General Algebraic Structures.  

Alexander Mehaffey, Jr.  

165

A Cycle of Congruences.  

Tomi Zierke and Emil Knapp  

167

Abstracts of Senior Research Papers  

169

Senior Research Papers Published by Title Only  

224

Abstracts of Award Winning Junior Papers  

227