Studies on productivity of different maize varieties
2008
Lian Yanxian | Wang Yongfen | Li Chaohai
chinois. 选用性状比较典型的8个玉米杂交种，通过两年的比较试验，探讨黄淮海平原地区夏玉米高产栽培的品种特性。结果表明，在高产栽培条件下，不同玉米杂交种的生产力存在很大差别。在黄淮海平原地区，中大穗玉米杂交种的群体生产力表现出明显的优势，早期能够迅速建成合理的群体，具有较大的叶面积和光合势；后期叶片不早衰，光合生产能力强，干物质积累多，吐丝后干物质积累占的比例较大，分配合理，经济产量高。[著者文摘]
Afficher plus [+] Moins [-]anglais. The results of high-yielding cultivation during two years showed that there were different productivities among different maize varieties in the high-yield cultivation conditions. In the Huang-Huai-Hai Plain area, the bigger ear maize varieties productivity of group was advantageous. They could quickly build reasonable group with their bigger LAI and LAD, they have higher photosynthesis than others because their leaves declined slowly after silking. They accumulated bigger dry-matter, the dry-matter after silking was bigger than before, so the yield was high.
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