Three leaf stage seedlings were investigated for intake rates of potassium in each 11 genotypes of O.japonica O.indica and O.indica hybrid at different K+ levels according to ion depletion.Potassium utilization efficiencies at 3 leaf stage were compared with those at 5 leaf stage to screen efficient genotypes.The suitable potassium levels were 0.2mmo1/L for both O.japonica and O.indica and 0.4mmo1/L for O.indica hybrid.Five leaf stage was much better than 3 leaf stage for comparison of genotypic differences in K utilization efficieny.
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刘国栋,刘更另.水稻耐低钾基因型筛选方法的研究[J].土壤学报,1996,33(2):113-120. DOI:10.11766/trxb199506150201 Liu Guodong, Liu Gengling. STUDY ON METHOD SCREENING RICE GENOTYPES TOLERANT TO LOW POTASSIUM[J]. Acta Pedologica Sinica,1996,33(2):113-120.