ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Production and postharvest characteristics of Rosa hybrida L. 'Meijikatar' grown in pots under carbon dioxide enrichment.

Clark, D.G., Kelly, J. W. and Rajapakse, N. C.

Journal of the American Society for Horticultural Science. Vol: 118 Issue: 5 Pages: 613-617.

1993

บทคัดย่อ

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 1050 microliters CO2/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 1050 microliters CO2/liter reached the harvest stage earlier and were taller at harvest than plants produced in 350 microliters CO2/liter, but there were no differences in the number of flowers and flower buds per plant among CO2 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 1050 microliters CO2/liter were higher than in plants produced in 350 microliters CO2,/liter, with plants grown in early spring showing greater increases than plants grown in late winter. Immediately after storage, plants grown in 350 microliters CO2/liter and stored at 4C had the fewest etiolated shoots, while plants grown in 1050 microliters CO2/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.