Abstract
This experiment studied the effect of different medium moisture on plant growth, water relations, and accumulation of osmotic adjustment substances of cabbage plug seedlings during low-temperature storage in darkness and on the photosynthetic and transpiration rates after removal from storage and transplanting. The plants were not watered from 0 (control), 1 (D), and 2 (DD) d before the start of storage. The results indicated that plant growth, and leaf relative water content and leaf saturated osmotic potential under water stress treatment significantly decreased compared with the control at the end of storage. However, the water stress resulted in increase in the proline contents in leaves, and abscisic acid, soluble sugar and total ion contents in plants. Starch contents in plants decreased significantly over storage time. After removal from storage and transplanting, plug cabbage seedlings under D treatment showed a faster and steadier recovery to photosynthesis and transpiration than the control.
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