The studies also showed that low ratios of (Spd+Spm)/Put and Spm/PAs might hindered embryo development.

• (Spd+Spm)/(Put)和(Spm)/(PAs)比值变化与龙眼胚珠的发育有直接的关系，两者比值高有利于胚胎发育，反之则不利于胚胎的发育。