Journal of Genetics

, Volume 8, Issue 1, pp 59–82 | Cite as

Studies of inheritance in the JapaneseConvolvulus

  • B. Miyazawa


  1. 1.

    The green colour of leaves is dominant to yellow, and the segregation inF 2 takes place according to the 3:1 ratio.

  2. 2.

    The factor producing the “hukurin” is present in the parent with white flowers. This condition is dominant to full colour and inF 2 the segregation occurs according to the 3 : 1 ratio.

  3. 3.

    The results mentioned in 1 and 2 agree with those obtained by Takezaki.

  4. 4.

    If we denote the one parent by GGDD and the other by ggdd, there exists the interrelation between the factors G and D, inasmuch as in the presence of D the production of the dark-red flower-colour takes place when G is present in homozygous condition, and that of the red (magenta or scarlet) colour, when G is present in heterozygous condition or altogether absent. The hybridsF 1 (= GgDd) will thus bear always flowers of red (= magenta) colour.



Green Plant White Flower White Patch Genotypic Constitution Yellow Plant 
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Copyright information

© Indian Academy of Sciences 1918

Authors and Affiliations

  • B. Miyazawa
    • 1
  1. 1.Agricultural Experiment Station of the Prefecture of Kanagawa, near YokohamaJapan

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