Photosynthesis and transpiration of bloom and bloomless sorghum

Chatterton, N.J. and Hanna, W.W. and Powell, J.B. and Lee, D.R. (1975) Photosynthesis and transpiration of bloom and bloomless sorghum. Canadian Journal of Plant Science, 55 (2). pp. 641-643.

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In controlled-environment studies with 3 bloom (surface wax) and 4 bloomless sorghum lines, net CO2 exchange (NCE) rates measured on the 3rd leaf at 14 days after sowing did not differ significantly between lines, but transpiration (T) rates averaged about 1 mg H2O/dm min less in bloom lines than in bloomless lines. Both NCE and T rates were significantly higher in bloomless lines than in bloom lines when leaf 5 or 6 was measured on day 23. Mean NCE and T rates in bloomless lines were 18 and 26% higher, respectively, than in bloom lines. It was concluded that bloom and associated cuticle characteristics acted as a barrier and modified gas exchange properties

Item Type: Article
Author Affiliation: Plant Physiology Institute, USDA, Beltsville, MD 20705, USA
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 12 Jul 2012 08:41
Last Modified: 12 Jul 2012 08:41
Official URL:

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