不同施肥处理华北驼绒藜胚胎发育及营养动态研究

Embryo Development and Nutrient Dynamics of Ceratoides arborescens in Different Fertilization Treatment

对不同施肥处理下的华北驼绒藜胚胎发育及营养动态进行了研究，结果表明：处理4（尿素60g／株，浇水，喷施0．05％硼酸钠）和处理7（尿素60g／株，浇水，喷施0．05％钼酸氨）为最佳施肥方案，结实率分别达到93％和94％，显著高于对照（87％，86％）；增施微量元素硼和铝，结实率比单独施用大量元素有一定提高，但差异未达到显著水平；处理4和处理7可以促进胚胎发育速度，以处理7发育最快，完整胚分化时间为18～21d；营养成分与结实率相关分析表明，N素含量与种子结实率达到显著或极显著相关，主要表现在胚胎发育的中后期（球形胚以后）。

Embryo development and nutrient dynamics of Ceratoides arborescens in different fertilization treatment were studied. The results showed that treatment 4 （urea 60g/individual, watering, 0.05% sodium borate） and treatment 7 （urea 60g/individual, watering, 0.05% ammonium） were the best fertilization program, the seed setting rate was enhanced to 93% and 94%, respectively; the seed setting rate after application of the trace elements boron and molybdenum was higher than that of macroelements, but the difference was not remarkable. The embryo development speed of the treatment 4 and treatment 7 were faster than control, the embryo development speed of treatment ？ was the fastest, its mature embryo differentiation time was 18-21 days. The N content was significant or extremely significant correlated with seed setting rate, mainly in the mid and late period of embryonic development.