Cd胁迫水培试验下水稻糙米Cd累积的关键生育时期

王倩倩,贾润语,李虹呈,周航,杨文弢,辜娇峰,彭佩钦,廖柏寒

Key Growth Stage of Cd Accumulation in Brown Rice Through a Hydroponic Experiment with Cd Stress

WANG QianQian,JIA RunYu,LI HongCheng,ZHOU Hang,YANG WenTao,GU JiaoFeng,PENG PeiQin,LIAO BoHan

表3 不同生育时期Cd胁迫对水稻成熟期根、茎、叶、穗和谷壳Cd含量的影响

Table 3 Effects of Cd stress at different rice growth stages on Cd contents in root, stem, leaf, ear and husk at maturing stage (mg·kg-1)

处理 Treatment 谷壳 Husk 穗 Ear 叶 Leaf 茎 Stem 根 Root CK 0.10±0.03c 0.05±0.01b 0.02±0.01b 0.07±0.03b 1.60±0.09c CG 1.04±0.34a 0.74±0.29a 0.99±0.07a 3.00±1.78a 22.32±4.99a TS 0.31±0.05bc 0.27±0.08b 0.12±0.02b 0.23±0.04b 5.72±1.53c JS 0.45±0.09bc 0.22±0.10b 0.08±0.02b 0.45±0.15b 5.02±0.78c BS 0.71±0.18ab 0.52±0.18ab 0.11±0.05b 0.72±0.27b 12.89±0.97b FS 0.96±0.23a 0.37±0.18ab 0.07±0.02b 0.60±0.27b 12.51±1.64b DS 0.27±0.07c 0.36±0.14ab 0.08±0.02b 0.25±0.07b 4.53±0.94c MS 0.27±0.06c 0.13±0.10b 0.08±0.03b 0.21±0.17b 4.09±2.05c