Open AccessPigments of Yellow-Eyed Races of the Black-Eyed Susan (Rudbeckia Hirta)
Author(s) -
S. G. Stephens,
Albert Francis Blakeslee
Publication year - 1948
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.34.6.252
Subject(s) - agroecology , food systems , agriculture , sustainable agriculture , climate change , ecology , agroforestry , natural resource economics , biology , food security , economics