CAJ | 학술논문

分析不同磷处理下的大豆幼叶、根尖酸性磷酸酶活性与植株磷利用率间的相关性，提供能够快速准确筛选磷高效利用大豆基因型的生化指标；在3种不同磷处理水平下，测定并比较12个大豆品种的幼叶、根尖酸性磷酸酶活性以及植株磷利用率；检测2μmol/L 磷处理下的159份大豆品种的根尖酸性磷酸酶活性。2μmol /L 磷处理下，根尖酸性磷酸酶活性与磷利用率间存在极显著正相关（r ＞r0．05），并从供试171份材料中筛选出6个磷高效大豆基因型；低磷条件下，大豆根尖酸性磷酸酶活性可作为磷高效基因型筛选的重要生化指标。
분석불동린처리하적대두유협、근첨산성린산매활성여식주린이용솔간적상관성，제공능구쾌속준학사선린고효이용대두기인형적생화지표；재3충불동린처리수평하，측정병비교12개대두품충적유협、근첨산성린산매활성이급식주린이용솔；검측2μmol/L 린처리하적159빈대두품충적근첨산성린산매활성。2μmol /L 린처리하，근첨산성린산매활성여린이용솔간존재겁현저정상관（r ＞r0．05），병종공시171빈재료중사선출6개린고효대두기인형；저린조건하，대두근첨산성린산매활성가작위린고효기인형사선적중요생화지표。
Study the relationships between the shoot or root acid phosphatase activity (APA) and phosphorus utilization ratio under different phosphorus treatments ,to provide a basis for screening P efficiency varieties in soy -bean.Under three different P supply levels,the soybean shoot and root acid phosphatase activities and P utilization ratio of 12 genotypes were determinated and contrasted .The root acid phosphatase activities of 159 genotypes were also detected under 2 μmol/L P concentration.The results showed that soybean root acid phosphatase activity was positively correlated with P utilization ratio significantly (r >r0.01 )under 2 μmol/L P concentration.Six phosphorus efficiency varieties were screened out from 171 experimental genotypes.Under low phosphorus concentration ,soy-bean root acid phosphatase activity coule be used as an important biochemistry index to screen P efficient genotype .