Research on creating autotetraploid rice using colchicum to induce the panicle callus of diploid rice .
秋水仙素诱导水稻幼穗愈伤组织创制同源四倍体种质的研究。
The low seed setting percentage is the most important reason that limits the application of the autotetraploid rice .
同源四倍体水稻结实率偏低是影响其在育种中直接应用的重要原因。
Genetic stability of the progenies from self-crossing of these autotetraploid was studied , no ploidy variation occurred among these progenies after morphology and chromosome observation .