长江中下游地区常规中熟粳稻产量、品质及氮素吸收性状的相互关系分析

刘秋员, 周磊, 田晋钰, 程爽, 陶钰, 邢志鹏, 刘国栋, 魏海燕, 张洪程

Relationships among grain yield, rice quality and nitrogen uptake of inbred middle-ripe japonica rice in the middle and lower reaches of Yangtze River

LIU Qiu-Yuan, ZHOU Lei, TIAN Jin-Yu, CHENG Shuang, TAO Yu, XING Zhi-Peng, LIU Guo-Dong, WEI Hai-Yan, ZHANG Hong-Cheng

表2 供试品种(系)稻米品质的变异

Table 2 Variation of tested varieties (lines) in rice quality traits

指标 Trait 2017 2018 最小值 Minimum 最大值 Maximum 平均值 Mean 变异系数 CV (%) 最小值 Minimum 最大值 Maximum 平均值 Mean 变异系数 CV (%) 糙米率 BR (%) 82.00 86.58 85.52 0.93 83.43 86.75 85.28 0.90 精米率 MR (%) 67.50 78.10 73.97 2.70 63.74 75.54 70.09 3.65 整精米率 HR (%) 47.18 74.86 63.89 8.47 39.22 70.79 58.14 12.09 垩白粒率 CKR (%) 10.23 88.70 35.80 51.18 11.20 90.73 33.98 49.89 垩白大小 CA (%) 15.44 41.29 26.19 17.01 20.54 50.77 28.03 16.97 垩白度 CKD (%) 1.57 36.63 9.75 64.22 2.29 46.07 9.89 68.44 蛋白质 PC (%) 8.25 10.30 9.17 4.12 7.20 10.05 8.53 6.99 直链淀粉 AC (%) 6.59 20.13 14.07 28.74 7.35 19.98 14.60 27.54 食味值 Taste value 45.07 76.00 58.96 13.10 42.83 80.67 61.59 12.36