The effect of polyethylene glycol (PEG) on shoot redifferen- tiation of endosperm-derived callus in Eucommia ulmoides
The effect of polyethylene glycol (PEG) on shoot redifferen- tiation of endosperm-derived callus in Eucommia ulmoides
聚乙二醇(PEG)对杜仲胚乳愈伤组织茎芽分化的影响