Canopy Characteristics and Its Correlation with Photosynthesis of Super High-Yielding Hybrid Cotton Biaoza A1 and Shiza 2 Traits of Canopy Photosynthesis and Its Influencing Factors of Summer-sowing Millet(Setaria italica Beauv.) Development of Canopy Apparent Photosynthesis among Maize Varieties from Different Eras Studies on the Relationship between Canopy Apparent Photosynthesis Rate and Grain Yield in High Yielding Summer Corn(Zea may L.) Studies on the Relationship between Canopy Apparent Photosynthesis and Grain Yield in High-yielding Winter Wheat The Characteristics of Canopy Photosynthesis of Summer Corn (Zea mays) and its Relation with Canopy Structure and Ecological Conditions Effects of longterm mixed application of organic and inorganic fertilizers on canopy apparent photosynthesis and yield of winter wheat. Effects of planting densities on canopy apparent photosynthesis, canopy structure and yield of cotton drip-irrigated under the mulch in Xinjiang Effects of Planting Density and Row Spacing on Canopy Apparent Photosynthesis of High-Yield Summer Corn Effects of Leaf Removal on Canopy Apparent Photosynthesis and Individual Leaf Photosynthetic Characteristics in Summer Maize under High Plant Density