播种密度对速生小芹菜生长发育和产量的影响

Effects of Seeding Densities on Growth and Yield of Fast-growing Chinese Celery

以芹菜杂交新组合CH15047为试材,研究不同播种密度对速生小芹菜生长发育和产量的影响。试验结果表明,当播种密度较小时,小芹菜地上部生长较慢,植株密度小,最终形成的芹菜产量偏低;从小芹菜单株生长发育指标和群体产量来看,速生小芹菜播种密度为0.3～0.4 g/m2较为适宜,不仅植株生长较快,单株质量大,而且最终形成的经济产量较高;当播种密度进一步加大时,虽然总的植株密度增加了,但植株生长偏弱,无效植株增多,导致经济产量下降。

The effects of seeding densities on the growth and yield of fast-growing Chinese celery were studied by using a new hybrid combination CH15047as material.The results showed that the plant grew slowly,and the final yield was low when the seeding densities were small.Considering the growth and development indexes of single plant and population yield of Chinese celery,the optimum seeding density of fast-growing Chinese celery was0.3-0.4g/m^2,and the seeding density was good for fast-growing of the plant and helping for forming higher economic yield.With the seeding densityfurther increasing,the total plant density increased,but the plants grew not well,and the number of invalid plants increased,which led to the decrease of economic yield.