玉米发芽、初期生育期生长发育分析

本文利用干物质生产与幼苗形态特征相结合的研究方法,对王米发芽、初期生育期进行了生长发育分析。按营养方式,将该期划分成异养、异养和自养并进及完全自养三个生长阶段。干物质的分配有中心从地上部向根系转移的过程。地上部与根系生长之间存在着明显的相互影响。对各器官干物质变化的过程给出最优方程形式予以模拟。这一时期农业生产应以如何促进幼苗自养能力的尽快建立为中心。

Growth and Developmental Analyses on Germination and Initial Stage of the Young Seedling in Maize

Using the research method of combining dry matter production with seedling morphological features made analyses on germination and initial stage of the young seedling in maize. This stage can be divided into three growth phases: heterotrophic, heterotrophic and autotrophic, autotrophic nutrition. During this stage the center of dry matter distribution transisted from above-ground to root system. There was a significant interrelationship between above-ground and root system. How to accelerte the formation of seedling autotrophic ability was the center of agrotechnics in this period.