Regulation of Flowering in Stock [Matthiola incana (L.) R. Br.] by Manipulation of Gibberellin Biosynthesis

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト
35-04-07.pdf168.57 KB

The role of gibberellins (GAs) in the control of growth and flowering in stock, Matthiola incana (L.) R. Br., and the possibility of their regulation by manipulation of GA biosynthesis were investigated. In M. incana, GAs were found to be necessary for stem elongation and flowering. GA4 in the non-13-hydroxylation pathway of GA biosynthesis was the most active component for stem elongation and flowering. It was shown that GA biosynthesis inhibitors of acylcyclohexanedione type could promote stem elongation and flowering. These results indicate that the balance of activities among GA biosynthetic and catabolic enzymes is very important for stem elongation and flowering. Furthermore, development of responsiveness to active GAs for flowering may be one of the essential factors in the flower bud initiation process in M. incana. Based on the above results, we demonstrated that acceleration of the flowering time in summer-sown M. incana could be obtained by prohexadione-calcium (PCa) treatment under plastic-film greenhouse conditions.

刊行年月日
作成者 Tamotsu HISAMATSU Masaji KOSHIOKA
著者キーワード

acylcyclohexanedione

cold requirement

inhibitor

公開者 Japan International Research Center for Agricultural Sciences
データ作成日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
35
4
開始ページ 263
終了ページ 269
DOI 10.6090/jarq.35.263
権利 Japan International Research Center for Agricultural Sciences
言語 eng