Production and postharvest characteristics of Rosa hybrida L. Meijikatar'' grown in pots under carbon dioxide enrichment
- Clemson Univ., SC (United States). Dept. of Horticulture
The effects of carbon dioxide enrichment on growth, photosynthesis, and postharvest characteristics of Meijikatar'' potted roses were determined. Plants were grown in 350, 700, or 1,050 [mu]l CO[sub 2]/liter until they reached 50% flower bud coloration and then were placed into dark storage for 5 days at 4 or 16C. Plants grown in 700 or 1,050 [mu]l CO[sub 2]/liter reached the harvest stage earlier and were taller at harvest than plants produced in 350 [mu]l CO[sub 2]/liter, but there were no differences in the number of flowers and flower buds per plant among CO[sub 2] treatments. Plants grown in early spring were taller and had more flowers and flower buds than plants grown in late winter. shoot and root growth of plants grown in 700 or 1,050 [mu]l CO[sub 2]/liter were higher than in plants produced in 350 [mu]l CO[sub 2]/liter, with plants grown in early spring showing greater increases than plants grown in late winter. Immediately after storage, plants grown in 350 [mu]l CO[sub 2]/liter and stored at 4C had the fewest etiolated shoots, while plants grown in 1,050 [mu]l CO[sub 2]/liter and stored at 16C had the most. Five days after removal from storage, chlorophyll concentration of upper and lower leaves had been reduced by [approximately]50% from the day of harvest. Carbon dioxide enrichment had no effect on postharvest leaf chlorosis, but plants grown in early spring and stored at 16C had the most leaf chlorosis while plants grown in late winter and stored at 4C had the least leaf chlorosis.
- OSTI ID:
- 5344421
- Journal Information:
- Journal of the American Society for Horticultural Science; (United States), Journal Name: Journal of the American Society for Horticultural Science; (United States) Vol. 118:5; ISSN JOSHB5; ISSN 0003-1062
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHLOROSIS
GROWTH
LEAVES
ORNAMENTAL PLANTS
OXIDES
OXYGEN COMPOUNDS
PATHOLOGICAL CHANGES
PLANT GROWTH
PLANTS