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玉米的生育后期主要指花粒期,该阶段是产量形成的关键时期,了解其生育特点和群体生理指标,采取适当的管理措施,对于发挥玉米品种的产量潜力、提高产量有重要的意义。一、玉米花粒期生育特点花粒期是从玉米开花到成熟,是开花、子粒形成和增重的关键时期。子粒产量的80%是在这个时期产生的,实际产量决定于结实的子粒数和灌浆物质对子粒的充实程度。该时期的特点是玉米由营养、生殖并进阶段转入以子粒为中心的生殖生长阶段。玉米完成授粉受精过程后,子粒开始生长、充实,少
The late growth period of maize mainly refers to the telomere stage, which is a critical period for yield formation. To understand the characteristics of its reproduction and population physiological indices and to take proper management measures is of great significance for exerting the yield potential and increasing the yield of maize varieties. First, the characteristics of corn flowering period The flowering period from corn to mature, flowering, grain formation and weight gain of the critical period. Eighty percent of the grain yield is produced during this period, and the actual yield depends on the number of grains present and the extent to which the grouting material contributes to the grain. The period was characterized by the transfer of maize from the vegetative and reproductive stages into the reproductive growth stage with grain as the center. After the corn completes the process of pollination and fertilization, the grains begin to grow, enrich, and less