callus induction短语¹⁴⁴⁹⁷²⁺² 基本例句 愈伤组织诱导 Both the callus induction rate and green plantlet regeneration rate increased with increasing the cold treatment time but decreased sharply when the time reached certain degree. 出愈率和绿苗分化率都随冷处理时间增加而增加，到一定程度后都又急剧下降。 cnki