Hello Khalid & thanks all, Interesting & useful observations & leads.
I traveled across Pakistan from Karachi via Islamabad, Peshawar, Khyber & Darra, Chitral back way to Gilgit up to and over Khunjerab in 1987, and have always wanted to go back to collect what I saw growing & ate around there. It's taken me since then to assemble (in New Mexico) most of the (sweet pit) apricot varieties collected there by a USDA Plant Explorer the following year. I haven't been able to get anything out of the close exchange that existed for a while between USDA & Afghan institutions, and I haven't started yet with India.
Given the tightening of the international plant movement regime, the buy-up and shelving of so many independent seed & nursery collections, and budget constraints on government repository systems, don't underestimate the value of local collecting: old botanical gardens, defunct agricultural experiment stations, forgotten plantings of private collectors, abandoned subsistence homesteads.
By all means keep collecting internationally. I've never noticed much seed on the move in your requested types, but once you get past any possible commercial sources there are deeper distribution & trading networks too:
modest-cost membership organisations (note some public resource & supplier pages):
- large member catalogue of material for trade
North American Fruit Explorers
- has fruit type interest groups & Pakistan consultant
Northern Nut Growers Association
California Rare Fruit Growers
- active mostly through local chapters, some of which collect, document, distribute much better than others
- fruit facts, of which the older format version more helpful, on many additional types
- if you don't get much frost also try feijoa (pineapple guava), araza (Cattley guavas), pitanga (Surinam cherry), etc
I have modest footholds in southern New York, central New Mexico, and southern California, and have been watching for land around those places over three decades: unless one has much better funding than the land itself can produce, knows someone well outside of the marketplace, or is willing to go quite a way off the beaten track & out of the comfort zone, the odds are very poor indeed.
Let me know directly if I can help further. Best, Patrik