收获时期对早稻产量与镉积累分配特性的影响

王罕, 郑德超, 田琴琴, 吴小京, 周文新, 易镇邪

Effects of Harvest Time on Yield and Cadmium Accumulation and Distribution Characteristics of Early Rice

Wang Han, Zheng Dechao, Tian Qinqin, Wu Xiaojing, Zhou Wenxin, Yi Zhenxie

表4 不同收获时期的早稻各器官镉积累量

Table 4 Cd accumulation amount of different organs of early rice under different harvest times mg/hm2

年份Year 品种Variety 处理Treatment 根Root 茎Culm 叶Leaf 谷壳Chaff 糙米Brown rice 合计Total 2021 湘早籼45号 Ⅰ 1659.10a 1533.51b 822.17a 222.83a 266.05d 4503.66c Ⅱ 1682.18a 1706.43b 653.64a 218.07a 321.90d 4582.22c Ⅲ 1631.63a 1932.01ab 576.87a 198.05ab 520.06c 4858.62b Ⅳ 1626.28a 2224.67a 454.75b 166.00ab 653.55b 5125.25ab Ⅴ 1616.09a 2289.39a 323.52b 149.88b 822.20a 5201.08a 陆两优996 Ⅰ 2436.52a 4629.13c 1531.61a 549.11a 682.71d 9829.08c Ⅱ 2132.64a 5057.13b 1246.53b 538.21a 1034.48c 10 008.99bc Ⅲ 2251.24a 5126.10b 1146.72b 481.02b 1206.69b 10 211.77b Ⅳ 2250.92a 5785.01a 1039.23b 474.85b 1365.86ab 10 915.87a Ⅴ 2246.12a 6078.78a 876.29c 450.96b 1508.45a 11 160.60a 2022 湘早籼45号 Ⅰ 1554.89a 1845.04b 655.57a 260.86a 214.66c 4531.02b Ⅱ 1576.65a 2025.56b 608.57a 233.70b 264.92c 4709.40ab Ⅲ 1518.32a 2049.76b 529.51b 211.11b 368.64b 4677.34ab Ⅳ 1449.25a 2177.26a 446.00b 183.43bc 407.63b 4663.57ab Ⅴ 1413.11a 2205.98a 435.71b 165.65c 554.92a 4775.37a 株两优4026 Ⅰ 1646.91a 2549.21a 572.86a 377.40a 405.28c 5551.66b Ⅱ 1744.88a 2628.39a 471.50ab 356.70a 463.20c 5664.67b Ⅲ 1809.18a 2707.04a 411.45b 354.27a 527.77b 5809.71ab Ⅳ 1698.81a 2638.74a 362.77b 341.64a 782.01b 5823.97ab Ⅴ 1701.52a 2668.02a 341.63b 331.50a 1080.46a 6123.13a