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Genetics of Resistance to Reniform Nematode, Rotylenchulus Reniformis Linford and Oliveira, in Cotton, Gossypium Hirsutum L

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Genetics of Resistance to Reniform Nematode, Rotylenchulus Reniformis Linford and Oliveira, in Cotton, Gossypium Hirsutum L Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1988 Genetics of Resistance to Reniform Nematode, Rotylenchulus Reniformis Linford and Oliveira, in Cotton, Gossypium Hirsutum L. Noor Muhammad Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Muhammad, Noor, "Genetics of Resistance to Reniform Nematode, Rotylenchulus Reniformis Linford and Oliveira, in Cotton, Gossypium Hirsutum L." (1988). LSU Historical Dissertations and Theses. 4586. https://digitalcommons.lsu.edu/gradschool_disstheses/4586 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 The most advanced technology has been used to photo­ graph and reproduce this manuscript 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 submitted. 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. 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Ml 48106-1346 USA 313. 761 -4700 800 521-0600 Order Number 8004555 Genetics of resistance to reniform nematode,RotyUnchulus rtniformis Linford and Oliveira, in cotton,Gossypium hirsutum L. Muhammad, Noor, Ph.D. The Louisiana State University and Agricultural and Mechanical Col., 1988 UMI 300 N. Zecb Rd. Ann Arbor. MI 48106 GENETICS OF RESISTANCE TO RENIFORM NEMATODE, ROTYLENCHULUS RENIFORMIS LINFORD AND OLIVEIRA, IN COTTON, GOSSYPIUM HIRSUTUM L. A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agr icultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Agronomy by Noor Muhammad B. Sc. (Hons.), University of Agriculture, Faisalabad, Pakistan, 1972 M. Sc. (Hons.), University of Agriculture, Faisalabad, Pakistan, 1976 August 1988 ACKNOWLEDGEMENTS The author wishes to express his admiration to his major professor, Dr. Jack E. Jones, Professor of Agronomy, Louisiana State University, for his encouragement, advice and dedication. The author expresses sincere thanks to the members of his advisory committee, Dr. Jerry B. Graves, Dr. M. S. Kang, Dr. B. G. Harville, Dr. S. A. Harrison and Dr. E. C. McGawley for their interest and valuable comments. Di. S G. Harville, not only provided the research equipment, but also extended full cooperation during the course of this research. The author gratefully acknowledges the advice, guidance, and encouragement of Dr. E. C . McGawley regarding techniques in inoculat ion and assessing populations of the reniform nematode used in this research. The technical assistance of Ms. K. L. Winchell and Dr. J. P. Beasley Jr. in similar activity is greatly appreciated. Dr. M. S. Kang played a major role in genetic analyses of the data and author gratefully acknowledges his efforts and guidance during the course of this investigation. The author sincerely appreciates the help, cooperation and guidance of Dr. A. M. Saxton in the statistical analysis of the data and wishes to express his gratitude to him. The author is greatly impressed by the enthusiasm, dedication and professional guidance of Dr. S. A. Harrison from the very beginning of this study. The assistance of research associates, Mr. J. I. Dickson, Mr. W. C. Smith and Dr. S. J. Stringer is gratefully acknowledged. The financial assistance by the U. S. Agency for International Development and the opportunity provided by the Government of Pakistan ii is greatly appreciated. The author is grateful to the program manager, Mr. Kevin Schieffer, program specialists, Ms. Julie Ann Iselin and Ms. Zaiga Robins, and staff of the Pakistan Participant Training Program, Washington, D. C. for continuous moral support, and timely payment of tuition fees and allowances. The author expresses his love and appreciation to his mother and late father, Saira and Muhammad Ali, for their patience, prayers, support, and love during his education. He also wishes to thank his elder brothers, sisters, parents-in-law and other relatives for their love, prayers, and support. The author sincerely appreciates the patience and love of his wife, Surria and lovely children, Maimoona, Naveed, Lubna, Aneela and Aisha. Most of all, the author is thankful to the almighty God for his mercy and graciousness. iii LIST OK TABI.ES Tables Page 1 Inoculat ion dates, days for Rotylenchulus reniformis development and air temperature regimmes for three cotton crosses tested for reniform nematode resistance in the greenhouse................................................... 35 2 Mean reniform nematode eggs per root system and eggs per gram of root of the parents and progenies of crosses in Experiment 1 (La. RN 910 x DP 41)..................................... 43 3 Mean reniform nematode eggs per root system and eggs per gram of root of the parents and progenies of crosses in Experiment 2 (Auburn 612 RNR x DP41)...................................... 44 4 Mean reniform nematode eggs per root system and eggs per gram of root of the parents and progenies of crosses in Experiment 3 (M 019-RNR x DP 41)........................................46 5 Analyses of variance of resistance to reniform nematode as measured by number of eggs per root system and eggs per gram of root of the parents and progenies oi crosses in Experiment 1 (La. RN 910 x DP 41)............................... 48 6 Analyses of variance of resistance to reniform nematode as measured by number of eggs per root system and eggs per gram of root of the parents and progenies of crosses in Experiment 2 (Auburn 612 RNR x DP 41)...........................50 7 Analyses of variance of resistance to reniform nematode as measured by number of eggs per root system and eggs per gram of root of the parents and progenies of crosses in Experiment 3 (M 019-RNR x DP 41)............................ 52 8 Frequency distribution of number of eggs per root system for six populations at Planting 1, Experiment 1 (La. RN 910 x DP 41).............................................................. 54 9 Frequency distribution of number of eggs per root system for six populations at Planting 2, Experiment 1 (La. RN 910 x DP 41)......................................................... 55 10 Frequency distribution of number of eggs per gram of root for six populations at Planting 1, Experiment 1 (La. RN 910 x DP 41)......................................................... 56 Frequency distribution of number of eggs per gram of root for six populations at Planting 2, Experiment 1 (La. RN 910 x DP 41)......................................................... 57 v 12 Frequency distribution of number of eggs per root system for six populations at Planting 1, Experiment 2 (Auburn 612 RNR x DP 41)................................................ 58 13 Frequency distribution of number of eggs per root system for six populations at Planting 2, Experiment 2 (Auburn 612 RNR x DP 41)................................................ 59 14 Frequency distribution of number of eggs per gram of root for six populations at Planting 1, Experiment 2 (Auburn 612 RNR x DP 41)..................................................... 60 15 Frequency distribution of number of eggs per gram of root for six populations at Planting 2, Experiment 2 (Auburn 612 RNR DP 41)................................................ 61 16 Frequency distribution of number of eggs per root system for six populations at Planting 1, Experiment 3 (M 019-RNR x DP 41)........................................................ 62 17 Frequency distribution of number of eggs per root system for six populations at Planting 2, Experiment 3 (M 019-RNR x DP 41)....................................................... 63 18 Frequency distribution of number of eggs per gram of root for six populations at Planting 1, Experiment 3 (M 019-RNR x DP 41 )....................................................... 64 19 Frequency distribution
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