The process of flower bud morphological differentiation may be divided into 12 phases.
一串红花穗、花序和单花形态分化可分为12个时期。
Spraying BA after tha beginning of flower bud morphological differentiation would promote the development of flower organs and increase the number of flower in next year.
而在形态分化开始后喷布，则极显著地促进花器发育和增加次年花量。
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