Cheng explains the purpose of these experiments: "We hope we can im prove their resistance to insects and to disease, and we also hope to increase crop yields and improve the texture of the vegetables."
這些試驗都「希望能改良出抗蟲性、抗病性較高的品種，並且增加作物的產量和改善作物的口感」，鄭書杏說明農業改良的意義。