花茎可食型 Brassica rapa (AA) と B. oleracea (CC) との種間雑種(AACC, AAC)における形質の遺伝および実用性 Inheritance and Commercial Value of Interspecific Hybrids between Brassica rapa (AA) and B. oleracea (CC) for Edible Flower Stem

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著者

    • 張 斌 ZHANG Bin
    • 愛媛大学農学部植物育種学研究室 Laboratory of Plant Breeding, Faculty of Agriculture, Ehime University
    • 加藤 正弘 KATO Masahiro
    • 愛媛大学農学部植物育種学研究室 Laboratory of Plant Breeding, Faculty of Agriculture, Ehime University

抄録

花茎可食型を示す<I>Brassica rarp</I> (2n=20 AA) と<I>B. oleracea</I> (2n=18 CC) との複二倍体系統 (2n=38 AACC) および二基三倍体系統 (2n=29 AAC) について, 種子稔性, 生育期間, 収量および形態的な形質などを調査し, 施設栽培用の花茎可食型野菜育成の可能性を検討した.複二倍体系統の種子稔性は十分とはまだ言えないものの, 比較的高い種子稔性と自家不和合性を示す系統があり, これらは一代雑種作出の親系統として利用できる.また, 複二倍体系統にAゲノム種系統を戻し交配した場合, 高い種子稔性を示し, 二基三倍体系統は複二倍体系統より利用価値が高いと考えられる.複二倍体系統と二基三倍体系統の生育期間は二倍体系統に比べ遅れる傾向が見られたが, より生育期間の短いAゲノム種系統とCゲノム種系統を交配親に用いれば, 早生および中生系統が育成できると考えられる.一部の複二倍体系統と二基三倍体系統では栄養生長の優勢が認められ, 特に全重は著しい優勢的効果を示した.しかし, 可食率は両親より低くなった.二基三倍体系統は株型が小さく, 複二倍体系統より密植に適し, 最適な栽植密度の条件下では, 栽培面積当たりの花茎収量の増加および可食率の向上が見られた.今後, 種間複二倍体系統について, 稔性, 生育期間, 収量および形態形質の選抜によって純化をはかり, これを親とした一代雑種複二倍体および二基三倍体の実用性品種の育成が期待できる.

Seed fertility, growth period, yield and other characters were investigated in amphidiploid lines and sesquidiploid lines derived from <I>Brassica rapa</I> (2n= 20 AA) and <I>B. oleracea</I> (2n =18 CC) for edible flower stem, and the possibility of breeding a commercial variety with edible flower stem is discussed in this study. Seed fertility was still low in amphidiploid lines, however, some lines with high seed fertility and self-incompatibility were obtained, which can be used as parents in the further breeding of hybrids. Seed fertility in backcross of amphidiploid lines with A genome lines was higher than that in the self-pollination of amphidiploid lines. It was considered that sesquidiploid lines possess greater commercial value than amphidiploid lines. Although amphidiploid lines and sesquidiploid lines expressed a late mature character compared with their diploid lines, early and medium mature lines were obtained by using A and C genome lines with short growth duration as parents. Some amphidiploid lines and sesquidiploid lines showed strong heterosis, especially in the total plant weight, but the edible proportion of these plant was lower than that of their parents. Sesquidiploid lines were smaller in plant size, and were more suitable to high density planting than amphidiploid lines. Unit yield of the flower stem and edible proportion rate of sesquidiploid lines increased when they were grown at the optimal density. It is possible to obtain commercially valuable varieties of amphidiploid lines or sesquidiploid lines using pure amphidiploid lines selected in seed fertility, growth period, yield and other characters as the parents.

収録刊行物

  • 植物工場学会誌

    植物工場学会誌 14(2), 92-99, 2002-06-01

    JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS

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各種コード

  • NII論文ID(NAID)
    10012339212
  • NII書誌ID(NCID)
    AN10451761
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09186638
  • NDL 記事登録ID
    6152451
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z18-3397
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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