一串红,常大面积群植在路旁、花坛中。盛开时一串串的钟状红花密集于花梗上,绿叶红花,一片艳红,引人入胜。大面积的种植通常用种子播种,不知您是否注意到,种子播下后,出苗率并不高。究其原因,我们先来做个实验:取200粒种子,分为两组,100粒为实验组,100粒为对照组。分别投入盛有清水的容器中进行浸种,数小时后就 A bunch of red, often large area group planting in the roadside, flower beds. A string of clusters of bell-shaped safflower crowded on the pedicel in full bloom, green leaves safflower, a brilliant red, fascinating. Large-scale planting is usually sown with seeds, but if you noticed, the seedling rate is not high after sowing. The reason, let’s first experiment: take 200 seeds, divided into two groups, 100 for the experimental group, 100 for the control group. Were put into a container filled with water soaking, a few hours later