Influence of light quality and intensity on adventitious root formation in micr...

• Author(s): Ragonezi, Carla ; Castro, Mário Rui Basílio ; Klimaszewska, Krystyna ; Lima, Mónica ; Zavattieri, Maria Amely
• Date: 2010
• Persistent ID: http://hdl.handle.net/10174/6432
• Origin: Repositório Científico da Universidade de Évora
• Subject(s): Stone pine; micropropagation; Gro-lux lamps; Cool-white lamps
• Document Type: Article
• Language: English
• Editor(s): Prakash, J.

Description

In the present study of Pinus pinea L., further improvement of microshoot rooting was achieved by applying Cool-white light at increased intensity from 60 to 90 µmol m-2 s-1. In contrast, light provided by Gro-lux lamps promoted rooting of the microshoots at the same frequency regardless of its intensity. Majority of microshoots (70.4%) grown under Cool-white lamps at the intensity of 90 µmol m-2 s-1 were also significantly taller when compared with those from other tested treatments.