有哪些信誉好的足球投注网站- 1、本文档共8页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
Colchicine induced tetraploids in yellow-flowered cyclamens and their characteristics
ELSEVIER Scientia Horticulturae. 65 ( 1996) 305-3 12
SCIENTIA
HOmlCULnJRR
Colchicine induced tetraploids in yellow-flowered
cyclamens and their characteristics
Takejiro Takamura * , Ikuo Miyajima
Laboratory of Horticultural Science, Faculty of Agriculture, Kyushu University, Fukuoka 812-81, Japan
Accepted 9 February 19%
Abstract
The possibility of obtaining tetraploids from diploid yellow-flowered cyclamen ‘Kage Yellow’
through colchicine treatment and the effects of polyploidization on the characteristics of yellow-
flowered cyclamen were investigated.
A Cday treatment of tuber segments with 100 mg 1-l colchicine in vitro yielded two tetraploid
plants. The petals of the tetraploids were larger and had a greater ability to accumulate chalcone
than those of their diploid relatives. Polyploidization may therefore represent a useful method for
the commercial breeding of deeper yellow-flowered cyclamen.
Keywords: Cyclamen; Colchicine; Polyploidization; Yellow-flowered, Chalcone
1. Introduction
Cyclamen perurn Mill. is the only commercially-important species of Cyclamen. A
large number of cultivars with flowers ranging between red, pink, white, reddish-purple
and purple have been recorded in this species. Ever since Miyajima et al. (1991)
observed an individual specimen with yellow flowers in a population of white-flowered
cyclamen ‘Pure White Kage’ (2x), efforts have been directed towards obtaining cultivars
with deep-yellow flowers.
C. persicum cultivars variously exist at the diploid (2n = 481, tetraploid (2n = 96)
and aneu-tetraploid (2n = 90, 92, 94 or 95) levels (Legro, 1959). The tetraploids are
autoploids that spontaneously arise from the diploid, and include cultivars with red, pink
and purple flowers; tetraploids with yellow flowers were not known prior to this study.
* Corresponding author at: Department of Horticulture, Faculty of Agriculture, Kagawa University, Miki-cho,
Kagawa 761-07, Japan. Tel: + 8 I-878-98-9964; fax: + 8 l-87
您可能关注的文档
- characteristics of stemflow for tall stewartia growing on a hillslope.pdf
- Characteristics and sources of chromophoric dissolved organic matter in lakes of the Yungui Plateau.pdf
- Characterization of Electrochemically Grown Crystalline CuInSe2 Thin Films.pdf
- Characterization of PM2.5 in the ambientair of Shanghaicity by analyzingindividualparticles.pdf
- Characterizations of essential ideals as operator modules over C-algebras.pdf
- Characterizing packet audio streams from internet multimedia applications.pdf
- Charge amplification concepts for direction-sensitive dark matter detectors.pdf
- Charge carriers of different origin in cuprates as revealed by experiment.pdf
- Charge collective modes in an incommensurately modulated cuprate.pdf
- Charge exchange for medium energy He and Ne ions in a large-angle collision at solid surfaces.pdf
文档评论（0）