Understand the prometaphase of generative growth phase is principal periods of the major nutritive elements absorption.
明确了生殖生长前中期是肥料三要素吸收的主要时期；
2
Some factors affecting the band formation were investigated and a practical procedure of C-banding of prometaphase chromosome was proposed.
还探讨了影响前中期C-分带制备的关键因素，提出了黄瓜前中期染色体C-分带的实用制备方法。
3
The G-bands at late prophase, prometaphase and metaphase chromosomes have been induced, and the number of G-bands of a cultivar decreases gradually from late prophase to metaphase.