4 The analysis of gene dosage effct in six combinations showed that the first dosage were able to increase amylose content significantly, about 53. 10-80. 61%, but the second and third dosage are more lower than it.

• 4通过对6个杂交组合的基因剂量效应分析，得出第一剂量效应的作用最大，能显著增加 AC，增效为 53，10－80.；61%25，第二，三的齐量效应作用相对较小。