论文部分内容阅读
通过果实体积的累积生长量，日均生长速度和相对生长速率三个指标的测定，可得到各类果实生长的“Ｓ”形曲线。生长呈三个时期，第一期为细胞分裂期，这个时期，生长速度较慢，而相对生长速率最高，是果实生长能力最高阶段；第二期为细胞膨大期，生长速度最快时期，而相对生长速率则呈下降趋势；第三期为成熟期，日均生长速度和相对生长速率都是低速和稳定时期。主要是内部生理变化，柑橘各类果实三个指标各异，此外，果实生长过程中，有两个生理落果高峰，但各不同品种落果成分构成与时期各异。因此，制定技术措施要因品种而异。果实生长规律除表现品种本身内部生理机制外，还受外界环境的影响。
The “S” shaped curve of the growth of various fruits can be obtained by measuring the cumulative growth volume, average daily growth rate and relative growth rate of fruit volume. The growth was in three stages. The first stage was cell division. In this period, the growth rate was slower and the relative growth rate was the highest, which was the highest stage of fruit growth ability. The second stage was the period of cell enlargement and the fastest growth, while The relative growth rate showed a downward trend; the third phase of the mature period, the average growth rate and relative growth rate are low-speed and stable period. Mainly internal physiological changes, citrus various types of fruit three indicators vary, in addition, the fruit growth process, there are two physiological drop fruit peak, but the composition of different varieties of fruit composition and period are different. Therefore, the development of technical measures vary by species. In addition to the law of fruit growth performance of the internal physiological mechanism of the species itself, but also by the external environment.