Seasonal variation of the canopy structure parameters and its correlation with yield-related traits

• 作 者: JunLuo;YouxiongQue;HuaZhang;LipingXu;
• 机 构: Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture / Fujian Agricultu
• 出 处: 中国作物学会2013年学术年会
• 发表日期: 2013年期

　　Population structure determines sugarcane (Saccharum spp.hybrids) yield, of which canopy structure is a key component.To fully understand the relations between sugarcane yield and parameters of the canopy structure, 17 sugarcane varieties were investigated at five growth stages with a CI100 digital plant canopy imager.The results indicated that there were significant differences between characterized parameters among sugarcane populations at different growth stages.During sugarcane growth post planting, leaf area index (LAI) and leaf distribution (LD) increased, while transmission coefficient for diffuse radiation (TD), mean foliage inclination angle (MFIA), transmission coefficient for solar beam radiation penetration (TR) and extinction coefficient (K) decreased.