Photosynthetica 2009, 47(1):41-45 | DOI: 10.1007/s11099-009-0008-5

Gas exchange response of barley and pea cultivars to altitude variation in Himalaya

S. K. Vats1,*, N. Kumar2,3, S. Kumar2
1 Biodiversity Division, Institute of Himalayan Bioresource Technology (CSIR), Palampur, India
2 Biotechnology Division, Institute of Himalayan Bioresource Technology (CSIR), Palampur, India
3 Laboratory No. 422, Institute of Plant and Microbial Biology, Nankang, Taipei, Taiwan

Leaf stomatal density (SD), net photosynthetic rates (P N), and stomatal conductance (g s) of Hordeum vulgare and Pisum sativum cultivars in Himalaya increased with altitude. Higher P N and leaf temperature under low CO2 partial pressure at high altitudes could evoke a higher g s and SD to allow sufficient influx of CO2 as well as more efficient leaf cooling through transpiration.

Additional key words: acclimation; Hordeum; photosynthesis; Pisum; pore length; species differences; stomatal conductance; stomatal density; stomatal index

Received: February 20, 2008; Accepted: September 1, 2008; Published: March 1, 2009  Show citation

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Vats, S.K., Kumar, N., & Kumar, S. (2009). Gas exchange response of barley and pea cultivars to altitude variation in Himalaya. Photosynthetica, 47(1), 41-45. doi: 10.1007/s11099-009-0008-5
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