金光杏梅果实生长动态观察研究

研究结果表明,金光杏梅果实生长发育动态呈“慢-快-慢-快-慢”的“3S”型曲线．整个发育过程可分为5个时期:幼果缓慢生长期、果实第一次迅速生长期、果实第二次缓慢生长期、果实第二次迅速生长期和果实熟前缓慢生长期。果实第二次缓慢生长期与果实硬核期相吻合,果实第一次迅速生长期和第二次迅速生长期是果实增长的两个关键时期。果实纵、横、侧径和果肉厚度与果实鲜重和体积变化曲线极为相似,经相关分析,果实纵、横、侧径和果肉厚度与果实鲜重的相关系数分别为0．9421**、0．9442**、0．9413**和0．9843**,与果实体积的相关系数分别为0．9391**、0．9462**、0．9373**和0．9824**,均呈极显著相关,说明它们是同步增长的。果核的生长发育动态呈“快-慢-停”的近“厂”型曲线,谢花后31d以前是迅速生长期;31d后进入缓慢生长期并开始硬化、变色:至59d达到固有大小和颜色,硬化结束,59d后停止生长。

Studies on Growth and Development of Golden Plum

The experimental results indicated that the growth and development of Golden plum was trable S-shaped curves: slow-fast-slow-fast-slow. The whole growth and development course was divided into five periods: the slow growth period of infant fruit, the first fast growth period of fruit, the second slow growth period of fruit, the second fast growth period of fruit and the third slow growth period of fruit at the beginning of ripening. The second slow growth period of fruit inosculated with the rigidification period of stone, and the first and the second fast growth period of fruit were two pivotal periods for fruit to grow. The variational curves of fresh fruit weight and fruit volume were almost semblable with that of vertical diameter, horizontal diameter, side diameter and pulp thickness of fruit. After relatively analyzed, we found that the relative coefficients among vertical diameter, horizontal diameter, side diameter, respectively pulp thickness of fruit and fresh fruit weight were 0.9421**, 0.9442**, 0.9413** and 0.9843**, and the relative coefficients among vertical diameter, horizontal diameter, side diameter, pulp thickness of fruit and fruit volume were respectively 0.9391**, 0.9462**, 0.9373** and 0.9824**, and those indicated that they rose synchronously. The growth and development of stone was about T-shaped curves: fast-slow-stopping. Before thirty-one days after Golden plum shattered, it was the fast growth period of stone. After that it was the slow growth period of stone, and at the same time, stone started to scleroses and change color. It was fifty-nine days after Golden plum shattered that stone attained the inherent size and color, and at the same time, stone stopped sclerosesing. After that stone stopped growing.