Abstract: Genetic analysis of melon node of the first female flower(NFF) were conducted with a set of 185 recombinant inbred lines(RILs) derived from a cross thick}kinned from USA WI998 and thin}kinned from China 322 by RIL mixed major gene plus polygene inheritance models. The result showed that the inheritance of NFF fitted two pairs of duplicate effect major genes plus additive-epitasis polygene model(E_1_8 ) in spring. The major gene heritability of RILs were estimated to be 79. 17%,the polygene heritability to be 20. 83 %.In autumn } the inheritance of NFF fitted two pairs of complementary effect major genes plus additive-epitasis polygene model (E_1_7).The major gene heritability of RILs were estimated to be 61 .94 %,the polygene heritability to be 36.77%.NFF in melon were controlled by two pairs of duplicate or complementary major genes plus additive-epitasis polygene,and also affected by environment.

Key words: Melon, Recombinant inbred lines, Node of the first female flower, Major genes plus poly}ene model, Genetic

CLC Number: 

• S652.03