CO sub 2 - toxicity in greenhouse tomato: Interaction with carbohydrate metabolism
- North Carolina State Univ., Raleigh (USA)
Greenhouse tomatoes grown with CO{sub 2}-enrichment at 1000 ul/l exhibit a non-epinastic foliar deformation (CO{sub 2}-toxicity). Symptoms include yellowing and purpling of the leaf blade accompanied by helical twisting and undercurling of the blade and midrib. Toxicity symptoms were more severe and yield response to CO{sub 2}-enrichment was reduced in the tomato cultivar Laura compared to Michigan-Ohio. There was no clear relationship between foliar starch concentration and toxicity severity between cultivars but CO{sub 2}-enriched plants had more foliar starch than non-enriched plants. Increased foliar soluble sugar concentrations do appear to be associated with increased toxicity severity and possibly decreased yield response to CO{sub 2}-enrichment.
- OSTI ID:
- 6604350
- Journal Information:
- Plant Physiology, Supplement; (USA), Vol. 89:4; ISSN 0079-2241
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBOHYDRATES
METABOLISM
CARBON DIOXIDE
TOXICITY
TOMATOES
PRODUCTIVITY
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
FOOD
FRUITS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
560300* - Chemicals Metabolism & Toxicology