Effects of DA-6 on leaf photosynthetic carboxylase and protective enzyme activities and grain yield of high-yielding summer maize. Effects of DA-6 on Growth and Leaf Nitrogen Metabolism of Dendranthema morifolium cv ‘chuju’Seedlings Effects of DA-6 and DCPTA Pre??harvest Treatment on the Quality Promotionof ‘Dongzao’? Jujube (Z izyphus jujuba M il.l cv. ‘Dongzao’ ) Fruits Effects of DA-6 on Chlorophyll Biosythesis Pathway in Peach Leaves Effects of DA-6 on Chlorophyll Biosythesis Pathway in Peach Leaves