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To this end, some developers use plants like rice and safflower that self-pollinate, reducing the risk of contaminating nonpharma plants by wind and insect pollination. 以此爲目標，有些培育人士採用像稻米和紅花這種會自花授粉的植物，降低風授粉和崑蟲授粉汙染非生葯植物的風險。