The National Geographic Magazine, Volume 96National Geographic Society, 1949 - Geography Indexes kept up to date with supplements. |
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Page 147
... plant , we know where to look for different forms having characteristics that might be valuable in present - day crop breeding . Plant - hunting expeditions are sent to the supposed region of origin of a species in the hope of finding ...
... plant , we know where to look for different forms having characteristics that might be valuable in present - day crop breeding . Plant - hunting expeditions are sent to the supposed region of origin of a species in the hope of finding ...
Page 148
... PLANT SQUASH MUSHROOMS 29 OKIN National Geographic Photographer B. Anthony Stewart bridges or short stretches of water , they some- times carried with them seeds of plants they had learned to use for food . By the time the oldest known ...
... PLANT SQUASH MUSHROOMS 29 OKIN National Geographic Photographer B. Anthony Stewart bridges or short stretches of water , they some- times carried with them seeds of plants they had learned to use for food . By the time the oldest known ...
Page 153
... plants might grow somewhat larger than in the wild or make somewhat larger yields , but they would still be " wild " plants . Merely continuing to plant all the seed from such plants year after year , and tending the plants carefully ...
... plants might grow somewhat larger than in the wild or make somewhat larger yields , but they would still be " wild " plants . Merely continuing to plant all the seed from such plants year after year , and tending the plants carefully ...
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