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Creator:: Cuevas-Pérez, Federico E.
Resource Type:: Dissertation
Full Text:: . D. W. S. Mok, and Dr. A. G. Nelson for serving on my graduate committee. I am very grateful to the

Creator:: Alexander, William Larry
Abstract:: The major objective of this study was to determine why certain winter wheat cultivars, when hybridized, will produce a greater proportion of desirable plants in subsequent, segregating generations. Three winter wheat parents were chosen as the experimental material, based on their known performance as parents. Yamhill and Pullman Selection 101...
Resource Type:: Dissertation
Full Text:: Family ACKNOWLEDGEMENTS My gratitude is expressed to my major professor, Dr. W. E. Kronstad, for his

Creator:: Firat, Ahmet Ertug
Abstract:: Parental and segregating populations derived from four winter x spring wheat crosses were investigated to obtain information concerning the inheritance and association of earliness, grain yield and yieldrelated traits. Feasibility of selecting in early generations for these characteristics was also evaluated. Four winter wheat cultivars (Hyslop, Yamhill, Bezostaia 1, and...
Resource Type:: Masters Thesis
Full Text:: characteristics. Parents, Fit s, F2' s, and reciprocal backcrosses to both parents were planted in the fall in a

Creator:: Frederickson, Leslie John
Abstract:: Responses to two cycles of mass selection for heading date, followed by selfing or intermating, were studied in two diverse winter wheat (Triticum aestivum L. em. Thell) crosses. Selection was bidirectional, resulting in early and late populations for each mating system, cycle, and cross. The influence of mass selection for...
Resource Type:: Dissertation
Full Text:: gratitude to Dr. W. E. Kronstad for his guidance and support throughout the pursuit of this study. A

Creator:: Mou, Beiquan
Abstract:: Concerns about the genetic control and environmental influence of various stages of development including the grain filling period, and the relationship between early maturity and grain yield prompted this study. The experimental material consisted of two facultative and two winter wheat cultivars. A dial!el cross, excluding reciprocals, was also developed...
Resource Type:: Masters Thesis
Full Text:: , Dr. W. E. Kronstad, for his guidance, encouragement and support throughout the course of my

Creator:: Ekse, Ali Osman
Abstract:: Three chemicals SD 55446, SD 55447 and WL 84245 were found to induce male sterility in cultivars of wheat or triticale. Both SD 55446 and SD 55447 when applied at a concentration of 0.896 kg/ha resulted in 90% male sterility. However, SD 55447 caused female sterility at the same concentration...
Resource Type:: Masters Thesis
Full Text:: data. Thanks are extended to Dr. W. E. Kronstad, Dr. R. G. Petersen, Dr. W. L. McCuistion and Dr. R

Creator:: Choi, Byung Han
Abstract:: The need to develop a shorter life cycle wheat cultivar which would be more adapted to multiple cropping systems prompted this study. Thus the following information was obtained. Greatest variations in developmental patterns were found in the stem elongation, booting, inflorescence emergence and anthesis for five winter and five spring...
Resource Type:: Masters Thesis
Full Text:: gratitude is expressed to my major professor, Dr. W. E. Kronstad, for his guidance, encouragement and

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