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首页> 外文期刊>Journal of Botany >Seed and Embryo Germination inArdisia crenata
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Seed and Embryo Germination inArdisia crenata

机译：圆孢子种子和胚萌发

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摘要

Ardisia crenatais an evergreen shrub with attractive bright red berries. Although this species is usually propagated by seed, the seeds take a long time to germinate with conventional sowing methods. We investigated the germination capacity of seeds and embryos collected in different months and the effects of seed storage conditions, germination temperature, water permeability of the seed coat, and the endosperm on seed germination. Seeds and embryos collected in late September or later showed good germination rates. Seeds germinated more rapidly after longer periods of storage at low temperature (approximately 5°C), and those stored in dry conditions showed lower emergence frequency than those stored in wet conditions. Seeds germinated at 15–30°C, but not at 5–10°C. Removal of the seed coat enhanced water uptake and seed germination. Seeds with various proportions of the removed seed coat were sown on a medium supplemented with sucrose. The germination frequency increased as the size of the remaining endosperm decreased. However, the opposite results were obtained when seeds were sown on a medium without sucrose. We concluded that the optimal temperature of 25°C is the most critical factor for seed germination inA. crenata.
机译：Ardisia crenatais是一种常绿灌木，具吸引力的鲜红色浆果。尽管该物种通常通过种子繁殖，但种子需要很长时间才能通过常规播种方法发芽。我们调查了不同月份收集的种子和胚的发芽能力，以及种子储存条件，发芽温度，种皮的透水性和胚乳对种子发芽的影响。 9月下旬或更晚时收集的种子和胚芽发芽率很高。在低温（约5°C）下长时间保存后，种子发芽的速度更快，与干燥条件下相比，干燥条件下种子的出苗频率更低。种子在15–30°C下发芽，但在5–10°C下不发芽。去除种皮可增加水分吸收和种子发芽。将具有不同比例的去除的种皮的种子播种在补充有蔗糖的培养基上。随着剩余胚乳的大小减少，发芽频率增加。但是，当将种子播种在无蔗糖的培养基上时，获得相反的结果。我们得出的结论是，最佳温度25°C是A种子发芽的最关键因素。 Crenata。

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