期刊论文

Effects of Different Concentration of Phosphorus Nutrient on Morphophysiology of Different Scented Rice Varieties at the Seedling Stage

中文

华北农学报

1000-7091

2020

35

2

117-125

10.7668/hbnxb.20190403

海南省自然科学基金项目（318QN295）； 海南农业科技示范推广项目（琼财农[2018]1024号）； 现代农业产业技术体系建设专项（CARS-01-89）；

本校为第一机构

为了分析低磷胁迫下对不同香稻品种苗期形态生理的影响,筛选出耐低磷性较好的香稻品种。在自然条件下,通过不同磷浓度(0,0.25,0.50,2.00,8.00,31.00 mg/L)营养液水培试验,在不同时间(7,14,21,28,31 d)测定不同磷浓度下绿金香、华香、美香占2号和海香占4个香稻品种苗期各项形态生理指标,研究了不同香稻品种在苗期不同磷水平下形态生理的差异。结果表明:在35 d无磷(磷浓度为0 mg/L)条件下,绿金香在SPAD值(34.58)、磷的积累量(1.45 mg/瓶)、根系活力(529.84 μg/(g·h))、根冠比(0.63)、总根长(443.06 cm)、总根系表面积(152.02 cm~2)、总根体积(14.15 cm~3)、总根尖数(2 452.02)和直径0 ~ 0.5 mm总...

In order to study the effects of low phosphorus stress on morphophysiology of different scented rice varieties at the seedling stage which were selected preferable scented rice varieties resistant to low phosphorus.A hydroponic experiment was conducted by different P concentration nutrient solution(0,0.25,0.50,2.00,8.00,31.00 mg/L) in natural conditions,different morphophysiological indexes of four scented rice varieties(Lujinxiang,Huaxiang,Meixiangzhan 2,Haixiangzhan) under different P concentration nutrient solution in different stage(7,1 4,2...