An efficient generation system in vitro of welsh onion (Allium .fistulosum.L) was established in this experiment, using the mature embryos as explants, and the endogenous hormones changes during regeneration was studied.
The different organs of welsh onion-immature leaves, roots, floral buds and mature embryos were used as explants to induce callus. It was indicated that the mature embryo was the best, with high and stable induction rate; the floral bud ranked the second whose growth stage was a k...
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