Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 2001 Crop Response and Weed Control With Glufosinate in Rice. David Yves Lanclos Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Lanclos, David Yves, "Crop Response and Weed Control With Glufosinate in Rice." (2001). LSU Historical Dissertations and Theses. 294. https://digitalcommons.lsu.edu/gradschool_disstheses/294 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy subm itted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6” x 9” black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. ProQuest Information and Learning 300 North Zeeb Road, Ann Arbor, Ml 48106-1346 USA 800-521-0600 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. CROP RESPONSE AND WEED CONTROL WITH GLUFOSINATE IN RICE A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosphy in The Department of Plant Pathology and Crop Physiology by David Yves Lanclos B.S., University of Louisiana at Lafayette, 1994 M.S., Louisiana State University, 1997 May 2001 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number 3016557 UMI’ UMI Microform 3016557 Copyright 2001 by Bell & Howell Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. Bell & Howell Information and Learning Company 300 North Zeeb Road P.O. Box 1346 Ann Arbor, Ml 48106-1346 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ACKNOWLEDGEMENTS I would like to preface this acknowledgement statement in writing these few words about people who have assisted me in some capacity does not do justice to the help, inspiration, and supervision I have received in my final years of graduate school. I feel that there is no better way for me to remember these times than writing a few words about the people with whom I have had the opportunity to associate and work. First and foremost, without a strong religious conviction there is no possible way that I would have made it through this endeavor, so to the higher power I say thanks for blessing me with so many graces. To my lovely, compassionate, and wonderful wife Nicole, words are worthless when it comes to the gratitude that I have for the years of support, encouragement, time, and love you have given me ever so unselfishly. To my parents Dean and Gene Lanclos, I would like to thank you for providing me with the tools to mature into the person that I am today. You are both a great inspiration to me and I appreciate the encouragement, support, prayers, and advice you have given me over the years. I would also like to thank my brother Jason and my sister Lynn Moreau, and her family Jude, Jacob, Alayna, and Michael for providing much humor and support in stressful times. I would also like to express appreciation to my in-laws MaryAnn and Richard Francingues for your support over the past few years. To my major professor Dr. Eric Webster, I owe a deep debt of appreciation. I would like to thank you for taking a chance and accepting me as a graduate student and providing for the education that I received. From working with you, I was able to learn many additional things that I will have as tools for the rest of my career. ii Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Your open door policy to educate, redirect, and edit will always be something that I remember. I leave with an enthusiastic attitude, sound agricultural research techniques, and the opportunity to have worked with one of the brightest weed scientists that academia has to offer. I would like to thank Dr. Jim Griffin, my "co-major" professor, for the many things that I have gained from you as a student. Your teaching style, weed science courses, and past graduate students sparked my initial interest in weed science. Thanks for talking to me and encouraging me to pursue a Ph.D. when I was seeking direction. Your timely and sound advice was greatly appreciated. To my committee members Dr. Steve Linscombe, Dr. Bob Harville, Mr. Roy Vidrine, and Dr. Michael Stout, I would like to express my sincere gratitude for the time, effort, and guidance that I have received from you. To my fellow Rice Weed Science graduate students Jeff Masson, Shanna Morris, Kristie Pellerin and Dr. Wei Zhang, I owe all of you a sincere thank you and I am grateful to have had the opportunity to work with you. Wei, I consider you a great mentor and thank you for the unselfish encouragement and guidance. I could not have asked for better. Kristie, thanks for all the help and friendship over the years. I wish you the best in your future endeavors. To my fellow Weed Science graduate students, all that I can say is the times were good and it has been an honor and privilege to be a colleague. In some ways I hate to close this chapter of my life, because it will be rare to be able to work with a combination of people all coming from rural backgrounds with the same value system and interests. To the posse of Jason Bond, Dr. Chris Corken, Dr. Richard Costello, Dr. Jeff Ellis, Curtis Jones, Chris Leon, Jennifer Mulkey, Dr. Joe Pankey, Alan Peters, Jonathon Siebert, and Dr. Blaine iii •. Vi.xv. _ Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Viator, thanks for the good times, I will cherish them always. Without the student workers, Pat Evans, Rob Green, John McCrory, Chris Mudge, Justin Nix, Will Patrick, and Ashley Peters, projects that were involved with my dissertation would never have been completed. I would like to thank Dr. Johnnie Snow, Pat Hives, and Charletta Warr for putting up with me and keeping me on the graduation track. Thanks for all the help. To the many other people who have assisted me in this endeavor in some capacity, I sincerely am grateful. I would like to thank Dr. Lee Burras, Todd Fontenot, Warner Hall, Marc Henderson, Dr. Chuck Kennedy, Dr. Freddie Martin, Frances and Yves Lanclos, Ronnie Levy, Dr. Donnie Miller, Ryan Pousson, Dr. Don Robinson, Fr. Dan Schexneyder, Dr. Ray Schneider, Adam Sistrunk, John Sonnier, and Keith Whitehead for their help in this process. iv Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. TABLE OF CONTENTS ACKNOWLEDGEMENTS ............................................... ii LIST OF TABLES ................................................. vi ABSTRACT ...................................................... vii CHAPTER 1 INTRODUCTION ......................................... 1 LITERATURE CITED ..................................... 10 2 RESPONSE OF GLUFOSINATE-RESISTANT RICE TO GLUFOSINATE APPLICATION TIMINGS........................................ 16 INTRODUCTION .......................................... 16 MATERIALS AND METHODS ................................. 18 RESULTS AND DISCUSSION ................................ 19 LITERATURE CITED ...................................... 24 3 INFLUENCE OF GLUFOSINATE ON GLUFOSINATE-RESISTANT RICE ON SEED WEIGHT, SEED GERMINATION, AND SEEDLING V I G O R............ 27 INTRODUCTION .......................................... 27 MATERIALS AND METHODS ................................. 29 RESULTS AND DISCUSSION ................................ 32 LITERATURE CITED ...................................... 38 4 WEED CONTROL WITH GLUFOSINATE PLUS HERBICIDE COMBINATIONS IN GLUFOSINATE-RESISTANT RICE............................... 40 INTRODUCTION ........................................... 40 MATERIALS AND METHODS ......................... 42 RESULTS AND DISCUSSION ................................. 44 LITERATURE CITED ......................................