在木薯生长中期和后期喷施或点涂以乙烯利,其块根产量及淀粉含量分别提高10%和11～29%;其叶片光合强度、还原糖含量和中性与酸性蔗糖酶活力均高于未施用乙烯利的。 In the middle and late stages of cassava growth, ethephon was sprayed or spotted, and the root yield and starch content increased by 10% and 11 ~ 29% respectively. The photosynthetic and reducing sugar contents and neutral and acid invertase activities of leaves were higher than Did not use ethephon.