บทคัดย่องานวิจัย

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Low oxygen and high carbon dioxide atmospheres affect the chilling tolerance of chilling sensitive species.

Mangrich, M. E. and Saltveit, M. E.

Postharvest Horticulture Series - Department of Pomology, University of California Year: 1997 Issue: No. 18 Pages: 8-12.

1997

บทคัดย่อ

Low oxygen and high carbon dioxide atmospheres affect the chilling tolerance of chilling sensitive species.

Cotton (cv. GC702), cucumber (cv. Poinsett 76), okra (cv. Clemson Spineless) and rice (cv. M202) seedlings with well developed radicles (8- to 12-mm long) were subjected to partial pressures of 0-21 kPa O2 or 0-20 kPa CO2 for 0-12 h at 20 deg C prior to chilling at 2.5 deg . After chilling, they were placed at 25 deg for 3 additional days. Inhibition of radicle growth was used to assess chilling injury. Modification of the individual germination plates was necessary to ensure seedling exposure to the desired atmosphere. Neither low O2 nor high CO2 had any effect on subsequent chilling tolerance in cucumber or rice seedlings and a high degree of variability was seen among the cotton and okra seedlings, making differences between treatments difficult to discern statistically.