Inheritance of resistance to cucumber green mottle mosaic virus in muskmelon (Cucumis melo L.)

Summary Studies on inheritance of resistance to CGMMV showed that resistance was governed by polygenes with recessive nature. Out of 15 crosses studied, 10 were found to be interacting. All the interacting crosses (except one Phoot x Harela) showed duplicate type of epistasis. Kachri x Phoot (R × R type) cross exhibited heterosis in F₁ and transgressive segregation in F₂ for resistance. Studies pointed out the need to exploit this F₁ further to develop a new breeding line with higher level of resistance than both the parents.