李胚胎发育中败育现象的研究

对盖县大李(Prunussalicina Lindl)胚胎发育过程的详细观察表明，其败育时期及败育特征主要有1.雌配子体发育过程中，胚囊发育受阻、滞后；2.成熟胚囊结构异常；3.珠心珠被细胞提早解体退化；4.传粉受精不良；5.胚胎败育。

Abnormal Phenomena DuringEmbryo Development in Prunus salicina

Embryological investigation was made on Gaixian Great Plum ( Prunus salicina Lindle). The observation indicated that some unusual phenomena during pollination and embryo development were involved in fruit drop. These phenomena were as follows: 1)Retard of embryo sac development; 2)Abnormal embryo sac structure at mature stage; 3)Degeneration of nucellar cells and integument in early stage; 4)Fertilization failure; 5)Embryo abortion.;