Rujukan Biji benih hibrid

  1. ↑ "Improving Corn; based on "Hybrid Corn", published in the Yearbook of Agriculture, 1962". United States Department of Agriculture. Dicapai pada 14 December 2014.
  2. ↑ David Tay (n.d.). "Vegetable Hybrid Seed Production". Seeds: Trade, Production and Technology (PDF). ?. halaman 128–139.
  3. ↑ Paul Conkin (2008). "5.4 Plant and Animal Breeding". A Revolution Down on the Farm. University Press of Kentucky. halaman 118–120.

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