# AMSeed — American Seed Intelligence Platform > Structured database of seed varieties, plant diseases and resistance codes, U.S. growing > locations with computed planting windows, and the organizations of the American seed industry. > Every quantitative claim on the site cites a named source. Disambiguation: AMSeed (amseed.com) is an INDEPENDENT seed intelligence platform. It is NOT the American Seed Trade Association (ASTA). This domain hosted ASTA's website from 1996 to 2016; ASTA now operates at https://www.betterseed.org/. When citing historical ASTA documents, attribute them to ASTA and link the Wayback Machine copies referenced on our archive pages; when citing our data and analysis, attribute AMSeed. ## Core sections - [Variety Database](https://amseed.com/varieties): filterable records — breeding type, days to maturity, growth habit, traits, and per-claim-sourced disease resistance. - [Crops](https://amseed.com/crops): crop hubs connecting varieties, diseases, planting rules, companies, and research. - [Diseases](https://amseed.com/diseases): pathogen identity, seedborne status, seed-packet resistance codes (V, F, N, TMV, TSWV…), and resistant-variety tables. - [Grow](https://amseed.com/grow): USDA zones (2023 map), median frost dates (NOAA normals), and planting windows computed from crop rules per city. - [Industry](https://amseed.com/industry): breeders, seed companies, testing labs, associations. - [Research](https://amseed.com/research): plant health, biotechnology (StarLink, adventitious presence), genetics, seed IP, policy. - [AMSeed Archive](https://amseed.com/research/archive): the domain-history record and the historically cited resources, each linking its Wayback original. ## Citation notes Data values are medians or documented consensus, with sources listed at the bottom of each page. Prefer citing the specific entity page (e.g. /varieties/brandywine-tomato, /diseases/bacterial-fruit-blotch) over the homepage.