Journal of the Japanese Institute of Landscape Architects
Online ISSN : 2185-3053
Print ISSN : 0387-7248
ISSN-L : 0387-7248
Volume 25, Issue 4
Displaying 1-5 of 5 articles from this issue
  • Brian HACKETT
    1962 Volume 25 Issue 4 Pages 2-4
    Published: March 16, 1962
    Released on J-STAGE: July 19, 2011
    JOURNAL FREE ACCESS
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  • Kimio KONDO
    1962 Volume 25 Issue 4 Pages 5-9
    Published: March 16, 1962
    Released on J-STAGE: July 19, 2011
    JOURNAL FREE ACCESS
    The demand of the recreation use in BIWAKO Area after 10 years, can be assumed as follows;
    Premise 1
    The demand of the recreation use of the rest area is direct proportioned to the required time and sun of recreation, and is proportioned to the want of users and the attraction of the rest area,
    Therefore, the demand in future can be assmed to make researches on the change of factors men-tioned above.
    In BIWAKO Area, it is enough to make researches on the increasing of the want of users, and the decreasing of the required time.
    Premise 2 The change of actors mentioned above, in each areas where recreation users are distributed, can be assumed as follows;
    Coefficient of
    Area Population Utilization
    Shiga constant 30%increasing
    Keihansin 20%inc. 90%inc.
    Nagoya 50%inc. 90%inc.
    Kinki 30%inc. 60%inc.
    Tokyo 30%inc. 200%inc.
    other constant 100%inc.
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  • Hiroshi AKITA
    1962 Volume 25 Issue 4 Pages 10-14
    Published: March 16, 1962
    Released on J-STAGE: July 19, 2011
    JOURNAL FREE ACCESS
    The public flower garden is an accessory of landscape architecture and has an aim as a part for the public enjoyment. The publics are on the move at every times all around the gardens, so the visitors, who enjoy in that garden, are not the same persons.
    Therefore we ought to make the condition on that flower garden is always beautiful. Garden flowers, which are chief materials for the flower beds, are plants of various kinds and are the living materials.
    Moreover nearly all flowers has very short lives. For the purposes of making and keeping them tho-ughtfully beautiful, we ought to consider these points on laying out them.
    These chief arrangements are as follows:
    (1) purpose of the flower gardening.
    (2) preparation of the established place.
    (3) cultivation of the gardenflowers to plant.
    (4) laying out and making of the flower garden.
    (5) management beautifully of the flower bed.
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  • Katsuyoshi YOSHIKAWA
    1962 Volume 25 Issue 4 Pages 15-20
    Published: March 16, 1962
    Released on J-STAGE: July 19, 2011
    JOURNAL FREE ACCESS
    Crosses were carried out on the among R. Omurasaki and eight other species (including garden species) for the purpose of breeding of Rhododendron, which have color of flower, form of flower and type of tree that adapt to new garden style, and also high resistant for drought, cold and disease as materials of public garden plant.
    The following nine species (including garden species) were used of the present experimement; Rhododendron japonicum var, glaucophyllum, R. japanicum f, flavum, R. luteum, R. lateritlium, R. linearifolium var, macrosepalum, R. obtsusum, R. Oomrasaki, R, scabrum, Azalea.
    In reciplocal crosses between each species of Rhododendron and R. Oomurasaki, R. obtsusum, R. linearifolium var, macrosepalum, R. scabrum and R. laterium, the seeds fertility is good. And also in among each species are the same result to reciplocal crosses. Generally in cross combinations the fructification rate, germination and growth is both good.
    F1 seedling of Azalea (nine species) X. R. Oomu-rasaki, R. obtsusum flower in four years (three years old) after sowing, and show growth resem-blance to father plant, and also was good both form of tree, size of flower, color of flower of double petals and corolla types.
    F1 were obtained from the mating between Azaleaa (each species) and R. scabrum and other species are not reach to period of flower, but growth is good.
    Crosses was made among the Rhododendron and Azalea, R. scabrum, R. lateritium and R. japon-icum f, flavum for make evergreen Rhododendron that have flower of yellow-orange color. From the result F obtained were mostly albino, and could not grow for insect injure.
    F1 (young seedling) were obtained by X-rays irradiation of bud-flower or pollen grains, are growing now.
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  • Studies on the class fication of Japanese lawn grasses.(2)
    Fumio KITAMURA
    1962 Volume 25 Issue 4 Pages 21-22
    Published: March 16, 1962
    Released on J-STAGE: July 19, 2011
    JOURNAL FREE ACCESS
    The chromosomes of Japanese lawn grasses varieties, i. e, “No-shiba I”, “Chu-shiba”, “Korai-shiba I”, “Korai-shiba II”, “Korai-shiba III”, “Kara-shiba”, “Chosen-shiba” and “Hime-shiba” (these varieties belong to Zoysia), were investigated.
    All of above varieties showed forty somatic chromosomes, which were of very smaII size.
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