Record Details

Photosynthetic performance of Ginkgo biloba L. grown under high and low irradiance

IR@CSIR-IHBT

View Archive Info
 
 
Field Value
 
Title Photosynthetic performance of Ginkgo biloba L. grown under high and low irradiance
 
Creator Pandey, S
Kumar, Sanjay
Nagar , P K
 
Subject Plant sciences
 
Description Diurnal variation in net photosynthetic rate (P-N) of three-year-old plants of Ginkgo biloba was studied under open, O (receiving full sunlight), net-shade, NS (40 % of photosynthetically active radiation, PAR), or greenhouse, G (25 PAR) conditions. In all three conditions, PN was higher in morning along with stomatal conductance (g(s)), and intercellular CO2 concentration (C-i), while leaf temperature and vapour pressure deficit were low. The O-plants exhibited a typical decline in PN during midday, which was not observed in NS-plants. This indicated a possible photoinhibition in O-plants as the ratio of variable to maximum fluorescence (F-v/F-m) and photosystem 2 (PS2) yield (Phi(PS2)) values were higher in the NS- and G-plants. On the contrary, stomatal density and index, chlorophyll a/b ratio, leaf thickness, and density of mesophyll cells were greater in O-plants. Further, higher PN throughout the day along with higher relative growth rate under NS as compared to O and G suggested the better efficiency of Ginkgo plants under NS conditions. Therefore, this plant species could be grown at 40 % irradiance to meet the ever-increasing demand of leaf and also to increase its export potential.
 
Publisher Springer, Van Godewijckstraat 30, 3311 GZ Dordrecht, The Netherlands .
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://ihbt.csircentral.net/373/1/94_2003_on_the.pdf
Pandey, S and Kumar, Sanjay and Nagar , P K (2003) Photosynthetic performance of Ginkgo biloba L. grown under high and low irradiance. Photosynthetica, 41 (4). pp. 505-511. ISSN 0300-3604
 
Relation http://ihbt.csircentral.net/373/