The antisense 4CL (4-coumarate: CoA ligase)gene was transformed into triploid Chinese white poplar(Populus tomentosa) me......

三倍体毛白杨采穗圃通过２次摘心增条每公顷可采饱满穗芽３２４万个，每公倾砧木圃接惩芽７２．２万个，成活率９２％，剪成播穗６６．４万个，每公倾成苗圃可出圃优二苗３．６万......