Funny thing about landraces is that no commercial grower wants them.
LETS GO BACK IN TIME. No internet, no Spanish books on growing.
People always imagine the hippy, or Jorge Cervantes up in the mountains attending the grow 
.
Imagine you need to find someone to take care of your field. Who do you get? Remember, You have to pay them, so, do you look for the smartest most expensive cartaker you can??? ( also remember this person has to drop everything and go live in the field for 3 months) Nope, you look for the cheapest person you can find because you have a selling price of $20USD PER POUND.
Ok, so we found a drunk that has nothing to do and has agreed to go stay in the field.
Question. Do you think that guy knows or cares about selective breeding? 
Do you think he has mad growing skills?? 
The outdoor commercial growers fertilizer of choice, triple 20!!! Whoooo Hooooo!!!
Tropical growing is different than growing in the north thus each respective harvest during the year will result in a different appearance in the plants even when using clones or the same seed stock.
I was in a 5 acre field once looking for plants to dig up, bring inside to reveg, and The growers didn't even know what hermaphrodites were. I am talking full blown half male half female plants.
There are some exceptions to this. I have found some growers that do know a lot about growing from trial and error. But these are generally smaller growers that represent less than one percent of one percent of national growers.
So, old landrace seeds from here from a long time ago are not grown anymore. Anywhere you go now the growers have seeds from X place or Y that someone sent them to try. ( when they have no idea what strain it is)
