Effects of Light Quality on the Growth, Development and Metabolism of Rice Seedlings (Oryza sativa L.)

文化大學機構典藏 CCUR > 環境規劃暨生物資源學院 > 農學院 > 生物科技研究所 > 期刊論文 > Item 987654321/29230

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/29230

题名:	Effects of Light Quality on the Growth, Development and Metabolism of Rice Seedlings (Oryza sativa L.)
作者:	Chen, Chang-Chang Huang, Meng-Yuan Lin, Kuan-Hung Wong, Shau-Lian Huang, Wen-Dar Yang, Chi-Ming
贡献者:	生物科技研究所
关键词:	Light-emitting diode Light quality Rice Photomorphogensis Metabolism
日期:	2014-04
上传时间:	2015-01-27 11:20:13 (UTC+8)
摘要:	The V3 seedlings of two rice cultivars, IR1552 (purple leaf) and Taichung sen 10 (TS10, green leaf) were hydroponically cultured under 12 h photoperiod at 30/25 degrees C (day/night), 70% relative humidity and 160 mu mol m(-2)s(-1) photon flux density under red light-emitting diodes (LEDs) (R), green LEDs (G), blue LEDs (B) and red + blue LEDs (RB) inside growth chambers for 14 days (starting 2 days after sowing). The results showed that shoot elongation was induced under the exposure of R and G. The maximum health index [(stem diameter/plant height) x biomass)] occurred under B because blue light inhibited shoot elongation. The root length under RB was the shortest. Different wavelengths mediated the chlorophyll (Chl) a/b ratio of the leaves. The content of anthocyanin (Ant) in seedling leaves was observed to be highest in RB but less in R and B, the latter pair being even lower than in G. B light LEDs enhanced effective quantum yield of PSII photochemistry (Phi(PSII)) and photochemical quenching (q(P)), but reduced non-photochemical quenching (NPQ) of seedling leaves. B LEDs also showed higher total protein content in the tested leaves compared to B plus R. In summary, precise management of irradiance and wavelength may hold promise in maximizing the economic efficiency of plant growth, development and metabolic potential of rice seedlings grown in controlled environments.
關聯:	RESEARCH JOURNAL OF BIOTECHNOLOGY 卷: 9 期: 4 頁碼: 15-24
显示于类别:	[生物科技研究所 ] 期刊論文

文件中的档案:

没有与此文件相关的档案.

检视Licence

在CCUR中所有的数据项都受到原著作权保护.

数据加载中.....