Effects of lighting method on growth and morphology of plantlets

光照方式对试管苗生长和形态的影响

• 批准号: 04404015
• 负责人: KOZAI Toyoki
• 金额: $ 18.56万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04404015/
• 关键词: growth; light emitting diode; lighting system; micropropagation; morphology; optical fiber; photosynthetically active radiation; potato; プラグ苗; 人工環境; 照明; 光ファイバ; 光強度; 明期時間; CO_2濃度; レタス; LED; 苗生産; 光合成有効光量子束密度

A prototype sideward lighting system using diffusive optical fibers was developed for enhanced energy and space efficiencies. In this system, only photosynthetically active radiation is released from the optical fibers to plantlets. Growth of potato plantlets micropropagated in the sideward lighting system was compared to that in the conventional downward lighting system. Plantlets micropropagated in the sideward lighting system had significantly shortened stems while gaining increased dry weight, leaf area, all of which are preferred characteristics of micropropagated plantlets for acclimatization to ex vitro conditions.Plantlet growth and morphology were controlled by modifying red (R) and far-red (FR) photon flux densities with red and far-red light emitting diodes as supplemental light sources. Shoot length of potato plantlets decreased with increasing R/FR ratio.Sideward lighting system with diffusive optical fibers and LEDs was a usuful lighting system to effectively control the growth and morphology of plantlets in micropropagation.

为了提高能源和空间效率，开发了一种使用扩散光纤的侧向照明系统原型。在这个系统中，只有光合作用的有效辐射从光纤释放到植株。比较了马铃薯试管苗在侧向光照和常规下行光照条件下的生长情况。在侧向照明系统中，试管苗的茎显著缩短，干重和叶面积增加，这些都是试管苗适应体外条件的首选特征。以红光和远红光二极管为辅助光源，通过改变红(R)和远红(FR)光子通量密度来控制植株的生长和形态。马铃薯试管苗的枝条长度随着R/FR比的增加而减小，采用扩散光纤和LED的侧向照明系统是一种在微繁殖中有效控制试管苗生长和形态的照明系统。

项目成果

Kitaya Y.,O.Fukuda,T.Kozai and C.Kadmanee.: "Effects of light intensity and lighting direction on the photoautotrophic growth and morphology of potato plantlets in vitro.(in press)" Scientia Horticulturae. (1995)

Kitaya Y.、O.Fukuda、T.Kozai 和 C.Kadmanee.：“光强度和照明方向对马铃薯试管苗光合自养生长和形态的影响。（正在印刷中）”Scientia Horticulturae。

Hayashi, M., N.Fujita, Y.Kitaya and T.Kozai: "Effect of sideward lighting on the growth of potato plantlets in vitro." Acta Hort.319. 163-166 (1992)

Hayashi, M.、N.Fujita、Y.Kitaya 和 T.Kozai：“侧向光照对马铃薯试管苗生长的影响”。

Kitaya Y., O.Fukuda, T.Kozai and C.Kadmanee.: "Effects of light intensity and lighting direction on the photoautotrophic growth and morphology of potato plantlets in vitro." Sci. Hort.(in press). (1995)

Kitaya Y.、O.Fukuda、T.Kozai 和 C.Kadmanee.：“光强度和照明方向对马铃薯试管苗光合自养生长和形态的影响”。

Y.Miyashita: "Effects of red light on the growth and morphology of potato plantlets in vitro:Using light emitting diodes(LEDs)as a light source for micropropagation." Acta Horticulturae. (in press). (1994)

Y.Miyashita：“红光对马铃薯试管苗生长和形态的影响：使用发光二极管（LED）作为微繁殖的光源。”

Kozai,T.,Y.Kitaya,K.Fujiwara M.A.L.Smith and J.Aitken-Christie.: "Environmental measurement and control systems,(539-574),In:Automation and environmental control in plant tissue culture,Aitken-Christie,J.,T.Kozai and M.A.L.Smith(eds.)" Kluwer Academic Pub

Kozai,T.,Y.Kitaya,K.Fujiwara M.A.L.Smith 和 J.Aitken-Christie.：“环境测量和控制系统，(539-574)，In：植物组织培养中的自动化和环境控制，Aitken-Christie，