The study on the growing characters of parents and hybridF1 showed there were significant difference (P<0.05).
对亲本及杂交获得的F_1生长特性研究表明，亲本及F_1的生长特性存在着显著差异（P<0.05）。
2
The main causes resulting in poor anther dehiscence in hybridF1 were different with the kind and the number of heterozygous pollen sterility loci.
杂种f 1花药不开裂的原因随其所含的杂合花粉不育基因座位种类和数目不同而异。
3
HybridF1 from Indica crossed with Japoniac as well as Photoperiod and Temperature Sensitive Genic Male-Serile(PTGMS) rice lines were the hot materials used in anther culture in recent years.