TABLE OF CONTENTS

I. FOREWORD .......................................................................................................................1

II. ANNOUNCEMENTS .........................................................................................................2

III. SOYBEAN GENETICS COMMITTEE REPORT .............................................................4

IV. SOYBEAN GERMPLASM ADVISORY COMMITTEE ................................................10

V. U.S. NORTHERN SOYBEAN GERMPLASM COLLECTION REPORT ......................13

VI. COMMERCIAL SOYBEAN BREEDERS BOARD - 1985 ...........................................15

VII. CURRENT AND OBSOLETE GirE SYMBOLS FOR ISOZYMES AND
        PROTEIN VARIANTS IN SOYBEAN ........................................................................16

VIII. RESEARCH NOTES

        Canada
        Flecked pigmentation of soybean seed coats. R. I. Buzzell ...............................................29

        Soybean linkage group I tests. R. I. Buzzell and R. C. Palmer ..........................................32

        India
        Environmental impact on different characteristics of soybean.
        B. K. Konwar and P. Talukdar ........................................................................................35

        Intra-plant variation in mutation frequency and spectrum in soybean.
        H. D. Upadhyaya, B. B. Singh and K. P. S. Chauhan .......................................................39

        Induced variability for quantitative characters. H. D. Upadhyaya .......................................44

        A narrow leaf type soybean variety - PK-308. H. H. Ram, K. Singh,
        Pushpendra and V. D. Verma ..........................................................................................49

        Retention of impermeability and viability of soybean seeds under water submergence.
        N. D. Rana .....................................................................................................................53

        Poland
        Analysis of variation and relationship between soybean traits in F₃ and F₄ in two
        cross combinations. H. Skorupska and G. Konleczny ......................................................59

        osmia rufa L. (Apoidea, Megalichiae) - A potential pollenator in the subgenus Glycine.
        H. Skorupska and Z. Wilkaniec .......................................................................................64

        Thailand
        Observation on back mutation of white-flowered 'Wakashima' mutants.
        S. Smutkupt, A. Wongpiyasatid and S. Lamseejan ...........................................................67

        United States
        Influence of genotype and growth stage on nitrogen fixation in soybeans.
        E. R. Garner, V. T. Sapra and McA. Floyd ......................................................................71

        The genomes of the genus Glycine. R. J. Singh and T. Hymowitz ......................................76

        Screening progeny of mutagen-treated soybean seeds for nonfluorescent root mutants.
        R. G. Palmer, J. D. Schillinger and T. Howson ..................................................................77

        Genetic studies with two mutagen-induced nonfluorescent root mutants.
        R. G. Palmer, M. 0. McFerson and S. Yost ......................................................................82

        Nucleolus distribution in quartets from diploid and triploid soybean.
        L. F. Chen and R. G. Palmer ............................................................................................86

        Screening soybean genotypes for iron-deficiency chlorosis in the growth
        chamber using potted soil. D. J. Fairbanks and J. H. Orf ...................................................90

        SG1 - A recently constructed random-mated soybean population possessing the ms₂
        gene for genetic male sterility. J. E. Specht and J. H. Williams ............................................93

        Heterosis performance and combining ability in soybeans. T. Kunta, L. H. Edwards,
        R. W. MeNew and R. Dinkins .........................................................................................97

        Combining ability for seed protein and oil content in soybeans.
        M. Y. Sabbouh and L. H. Edwards ..................................................................................99

        The effect of the narrow-leaf gene in a segregating population.
        R. D. Dinkins, L. H. Edwards, R. W. McNew and T. Kunta ...........................................101

        U.S.S.R.
        Subunit composition of glycinin from various samples of cultivated and wild soybean.
        A. Y. Alexenko, V. I. Sichkar, E. A. Timokhina, A. A. Musatova and Y. P. Vinetsky .....103

        Zambia
        Development of promiscuous soybean varieties. J. M. Joshi, F. Javaheri and
        S. Nkumbula .................................................................................................................113

IX. INDEX OF AUTHORS ..................................................................................................117

X. RECENT SOYBEAN GENETICS AND BREEDING PUBLICATIONS .......................118

XI. MAILING LIST .............................................................................................................134

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