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染色体是基因的载体,它对遗传变异起着决定性的作用。所以人们对染色体的研究十分关注。随着科学研究的深入发展,实验手段的不断改善,尤其是植物组织培养和细胞学研究的开展,对及时观察染色体显得更为迫切。众所周知,染色体只有在分生组织的细胞分裂期才能看到,在分裂期的中期形态特征才典型。分裂期在细胞周期中只占很短的时间。Adrian F.Dyer(1979)指出:玉米根尖细胞周期为14小时,分裂期仅持续1小时,这使观察染色体受到一定的限制。因此寻找便于观察染色
Chromosomes are gene carriers that play a decisive role in genetic variation. So people are very concerned about chromosome research. With the deepening of scientific research, continuous improvement of experimental means, especially the development of plant tissue culture and cytology, it is more urgent to observe chromosomes in time. It is well-known that chromosomes can only be seen during the meristematic meristematic period, typical of mid-mitosis morphological features. The division period only accounts for a short period of time in the cell cycle. Adrian F. Dyer (1979) pointed out: The root tip cell cycle of corn is 14 hours, the division period lasted only 1 hour, which made the observation of chromosomes subject to certain restrictions. So looking for easy observation of staining