筛选水稻耐低钾基因型最直接、客观方法是在低钾土壤上进行田间实验直接筛选，其结果可作为其他方法的比较标准。但该方法需时较长、工作量大，不能满足大批量快速、高速筛选的要求。因此，近年来国内外许多学者在探索用液培的方法进行筛选［１，２］。但以往的研究大都缺... The most direct and objective method for screening low-K tolerant rice genotypes is direct screening in low-potassium soil in field experiments, and the results can be used as a comparative standard for other methods. However, the method takes a long time and the workload is heavy, which can not meet the requirements of fast and high-speed screening in large quantities. Therefore, in recent years, many scholars at home and abroad are exploring the method of liquid culture screening [1,2]. However, most of the past lack of research ...