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＜departmental bulletin paper＞
Studies on the Physiology of Bolting and Flowering in Radish, Raphanus sativus L. : I. Flower Bud Formation and Endogenous Auxin-like Substance Levels

Creator
Creator Name
柳, 根昌
Yoo, Keun-Chang
Affiliation
Affiliation Name
九州大学農学部園芸学教室
Horticultural Laboratory, Faculty of Agriculture, Kyushu University
Creator Name
上本, 俊平
Uemoto, Shunpei
Affiliation
Affiliation Name
九州大学農学部園芸学教室
Horticultural Laboratory, Faculty of Agriculture, Kyushu University
Language
Japanese
Publisher
九州大學農學部
Faculty of Agriculture, Kyushu University
Date
1975-03
Source Title
Science bulletin of the Faculty of Agriculture, Kyushu University
Vol
29
Issue
4
First Page
147
Last Page
150
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/23186
Related DOI
九州大學農學部學藝雜誌 || 29(4) || p147-150
Science bulletin of the Faculty of Agriculture, Kyushu University || 29(4) || p147-150
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大學農學部學藝雜誌 || 29(4) || p147-150
Science bulletin of the Faculty of Agriculture, Kyushu University || 29(4) || p147-150
http://www.agr.kyushu-u.ac.jp/
Relation
九州大學農學部學藝雜誌 || 29(4) || p147-150
Science bulletin of the Faculty of Agriculture, Kyushu University || 29(4) || p147-150
http://www.agr.kyushu-u.ac.jp/

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Details

Record ID
23186
Peer-Reviewed
Unrefereed
Subject Terms
ダイコン
抽苔
開花生理
オーキシン様物質
早生四十日
早太り時無
ISSN
0368-6264
NCID
AN0005519X
Notes
Experiments were carried out to make clear relationship between the flower bud formation and the endogenous auxin-like substance levels in the Japanese radish, Raphanus sativus L. cultivars 'Wase-shijunichi' and 'Hayabutori-tokinashi.' Vernalization was performed for 20 days at 5℃ before sowing. Those seedlings precedingly vernalized and non-vernalized were grown at the same time in the continuous artificial illumination room at 25℃. Auxin-like substances in acidic fraction were extracted from leaves and stems at various growth stages of both vernalized and non-vernalized plants and activities were bioassayed by the Avena coleoptile straight growth test. Preceding flower bud formation, the activities of auxin-like substance exhibited at the lowest levels in chilling treated plants on the both cultivars of 'Wase-shijunichi' and 'Hayabutori-tokinashi.' The auxin-like substance levels of the former cultivar falled down immediately, whereas that of the latter 10 days after sowing time. It is very important and interesting phenomenon that the activities of endogenous auxin-like substance decline before flower bud formation in each cultivar.
ダイコンの花成とオーキシン様物質の消長を明らかにするために“早生四十日”および“早太り時無”を5℃で20日間低温処理し,各生育期に酸性オーキシン様物質を抽出,検定して,その消長と花芽分化との関係について調査した.“早生四十日”では低温処理直後に,“早太り時無”では播種後10日目に,すなわちいずれの品種においても花芽分化約1週間前にオーキシン様物質の活性は最低レベルに低下する.このような花芽分化前のオーキシン様物質の活性低下は花成誘因と深い関連性をもち,また活性低下の時期が供試2品種においてことなることは,それら品種の生態型の差異にもとづくものと考えられる.
Created Date 2012.07.25
Modified Date 2022.11.11

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