期刊论文

Effects of low phosphorus stress on phosphorus accumulation and chlorophyll fluorescence of four scented rice materials at the seedling stage

中文

湖南农业大学学报(自然科学版)

1007-1032

2021

47

4

369-377

10.13331/j.cnki.jhau.2021.04.001

318QN295:海南省自然科学基金 CARS–01–89:现代农业产业技术体系建设专项

本校为第一机构

为筛选出耐低磷性较好的香稻,通过不同磷质量浓度(0.00、0.25、0.50、2.00、8.00、31.00 mg/L)营养液试验,研究了香稻绿金香、华香、美香占2号和海香占在苗期低磷胁迫下磷积累特性及叶绿素荧光参数特征.结果表明:出苗后35 d,无磷(P0,磷质量浓度为0.00 mg/L)条件下,绿金香单瓶秧苗磷积累量(1.45 mg)最大,海香占单瓶秧苗磷的积累量(0.88 mg)最低;叶绿素荧光参数方面,对于ΦPSII和ETR,受低磷胁迫影响较大的是海香占,影响的幅度分别为0.08和9.03,qP受低磷胁迫影响较大的是华香,影响幅度为0.15,qN受低磷胁迫影响较大的是美香占2号,影响幅度为0.14;磷的积累量与SPAD值、ΦPSII、qP和ETR呈显著正相关.低...

In order to screen out optimal scented rice materials resistant to low phosphorus, six group of P mass concentration(0.00, 0.25, 0.50, 2.00, 8.00 and 31.00 mg/L) nutrient solution under natural conditions were designed to treat four scented rice materials(Lyujinxiang, Huaxiang, Meixiangzhan 2, Haixiangzhan) at seedling stage. The phosphorus accumulation characteristics and chlorophyll fluorescence parameters were analyzed. The results showed that without P(P0, P mass concentration was 0.00 mg/L) at 35 d, Lyujinxiang was the highest in the phosp...