text: I tīmata te pūtake mō ngā iranga o nāianei ki te mahi a Kari Mendel, nāna i whakaatu tana pepa, "Versuche über Pflanzenhymamamamate" ("Experiments on Plant Hybridization"), i te tau 1865, nāna i whakaatu ngā tikanga o te kainga tupuranga, e tautuhi ana hei take mō ngā ira o nāianei.