wifezilla said:
Wait...what??
I can plant those green onion root tips and get more plants???
:tools
Yes dear. And potato eyes (let them go long in a dark place), and sweet potato eyes, garlic, ginger.....
As for commercial varieties. Very few of the horticultural crops are hybrids. Hybrid seed is very expensive. Most horticultural crops are extensively bred for disease resistances, heat tolerances, pest resistances, harvestability (ha I think I just made this word up!), etc etc.... It is difficult to produce the huge amount of seed that commercial producers would need with hybridization in horticultural crops (easier for the row and agronomic crops). Even those hard tasteless tomatoes you purchase in the store will actually produce a tasty, though firmer fleshed, tomato when grown in the home garden and allowed to ripen on the vine. They also have great storage capacity....
Again, as with the peppers, egg plants do like a lot of heat to germinate. Also, green bell peppers, are just red bell peppers before they are ripe. So it's possible the green bell's you harvested seed from were not mature enough yet for the seed to be viable.
In terms of the cucurbits, though yes techincally they can outcross, in general they are grown in such huge fields the chance of an outcross with another variety is small. Though possible. Worth a try though, you never know you might get something you like even better.
I've had pretty good success with this so far. Some things like cucumbers obviously aren't ripe enough for the seed to be viable. But if the seed coat in your veg appears hardened it is generally ripe enough to save.
Give it a try!