Washing 6-day old young excised roots of wheat in aerated de-ionized water or 0.1 mAf CaSO_4 solution for 24 hours induced an increase in K~+ uptake rate.

• 小麦离体根在通气的去离子水中或0.；1mM CaSO_4溶液中浸洗24小时；显著地增加K~+的吸收速率。