Characteristics of Interspecific Hybridization and Inbred Progeny of Pumpkin (Cucurbita moschata Duch.) and Winter Squash (Cucurbita maxima Duch.)

Hybrid incompatibility and F1 hybrid dysgenesis in the interspecific hybridization between pumpkin (Cucurbita moschata Duch.) winter squash maxima have been previously noted. For this reason, it is difficult to obtain F2 generations due sterility. However, back-crossing add-crossing can be utilized overcome these barriers hybridization. To date, few studies focused on parental selection, process, offspring characteristics related Hence, we explored seed acquisition rate, plant characteristics, generation fertility after of C. maxima. Moreover, as a female parent, X-1 (C. moschata) yielded seeds when crossed with maxima) 10-04-3, 10-37, or 10-05-2. BC1F1 plants could obtained recurrent parent. Some healthy were from hybrids, including ZJ-13, ZJ-8, ZJ-11. Further fruit nutrition quality analysis showed that starch, polysaccharide, cellulose, dry material contents ZJ-7 ZJ-8 significantly higher than those parent lines. The bioflavonoid content was lower its parents, soluble protein at median value. Meanwhile, ZJ-1 but higher. These results suggest multi-crossing crossing × fruits had nutritional much their Additionally, found act bridge species Collectively, study, addressed through methods choice are expected provide novel support for breeding