Abstract: In this paper,the general characteristics of the morphology,size,moisture content,taxonomic classification,and plant ecology of recalcitrant-type seeds were reviewed,with the adaptability of recalcitrant-type seeds to ecological environment analyzed,their possible evolution patterns discussed,and the significances and application prospects of the researches on seed recalcitrance eco-physiology described.Recalcitrant-type seeds generally have great 1000-seed weight,big size and high moisture content,germinate quickly,and have no dormancy.The plants producing recalcitrant-type seeds are distributed extensively and have no relation to their systematic status,but all originate in humid habitats.There are no sufficient evidences to prove whether seed recalcitrance is ancestral or derived,which is needed to be solved by further researches,especially by the cooperative researches of seed physiologists and ecologists.

Key words: Potato, Areoponics, Rhizosphere CO₂ treatment